Mitsubishi Electric PAR-W31MAA User manual

Installation Manual
Contents
Safety Precautions...................................................................2
1. Parts to be used..................................................................7
1-1. Package contents .................................................................7
1-2. Commercially available parts................................................7
2. General description of installation.......................................8
3. Selecting an installation site................................................9
3-1. Notes to ensure optimal product functionality.......................9
4. Installation/wiring work......................................................10
4-1. Construction work procedures and installation...................10
4-2. Differences with previous installation methods...................10
4-3. Installation and electrical work............................................10
4-4. Service................................................................................16
5. Check after installation work.............................................17
5-1. Installation work check list ..................................................17
5-2. Making the settings for the hot water sensor......................17
5-3. Removing the protective lm...............................................17
6. Trial run.............................................................................17
6-1. Trial run procedure..............................................................17
6-2. Items to check during the trial run.......................................17
7. Explanations to customers................................................17
8. For the safe and long-term use of the remote controller...18
8-1. Daily maintenance ..............................................................18
8-2. Parts replacement during inspections and their holding
periods................................................................................18
9. Parts names......................................................................19
9-1. Explanation of each button on the remote controller ..........19
9-2. Using the function buttons ..................................................20
10.Preparations......................................................................20
11.Operations ........................................................................21
11-1. Turning the power on ........................................................21
11-2. Unit initial set (Initial settings for the connected units)......22
11-3. Initial settings ....................................................................23
11-4. Service menu....................................................................26
12.Before requesting repairs..................................................29
12-1. Remote controller check...................................................29
Hot Water Heat Pump & Chilling Units
Remote Controller
PAR-W31MAA
Refer to the Installation Manuals that
are provided with the connected units
(Hot Water Heat Pump & Chilling Units)
for how to connect cables and how to
install them.
To ensure safety and correct use of the
product, thoroughly read this manual
prior to installation.
Retain this manual for future reference.
<ORIGINAL>
GB
WT08011X02
For distribution to dealers and contractors

2
WT08011X 02
S a f ety Prec a u ti ons
Th orou g h ly rea d th e f ollow i ng sa f ety p rec a u ti ons p ri or to i nsta lla ti on.
O b serv e th ese p rec a u ti ons c a ref u lly to ensu re sa f ety .
Af ter rea d i ng th i s ma nu a l, p a ss i t on to th e end u ser to reta i n f or f u tu re ref erenc e.
K eep th i s ma nu a l f or f u tu re ref erenc e a nd ref er to i t a s nec essa ry . Th i s ma nu a l sh ou ld b e
ma d e a v a i la b le to th ose w h o rep a i r or reloc a te th e c ontroller. Ma k e su re th a t th e ma nu a l
i s p a ssed on to a ny f u tu re u sers.
All elec tri c a l w ork mu st b e p erf ormed b y q u a li f i ed p ersonnel.
: i nd i c a tes a h a z a rd ou s si tu a ti on w h i c h , i f not a v oi d ed , c ou ld resu lt i n
d ea th or seri ou s i nj u ry .
: i nd i c a tes a h a z a rd ou s si tu a ti on w h i c h , i f not a v oi d ed , c ou ld resu lt i n
mi nor or mod era te i nj u ry .
: a d d resses p ra c ti c es not rela ted to p ersona l i nj u ry , su c h a s p rod u c t
a nd / or p rop erty d a ma g e.
G enera l p rec a u ti ons
D o not i nsta ll th e u ni t i n a p la c e w h ere la rg e a mou nts of oi l, stea m, org a ni c solv ents, or
c orrosi v e g a ses, su c h a s su lf u ri c g a s, a re p resent or w h ere a c i d i c / a lk a li ne solu ti ons or
sp ra y s a re u sed f req u ently . Th ese su b sta nc es c a n c omp romi se th e p erf orma nc e of th e u ni t
or c a u se c erta i n c omp onents of th e u ni t to c orrod e, w h i c h c a n resu lt i n elec tri c sh oc k ,
ma lf u nc ti ons, smok e, or f i re.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not w a sh th e c ontroller w i th w a ter or a ny oth er li q u i d .
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, smok e or f i re, d o not op era te th e
sw i tc h es/ b u ttons or tou c h oth er elec tri c a l p a rts w i th w et h a nd s.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , b ef ore sp ra y i ng a c h emi c a l a rou nd th e
c ontroller, stop th e op era ti on a nd c ov er th e c ontroller.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , stop th e op era ti on a nd sw i tc h of f th e p ow er
su p p ly b ef ore c lea ni ng , ma i nta i ni ng , or i nsp ec ti ng th e c ontroller.
Prop erly i nsta ll a ll req u i red c ov ers to k eep moi stu re a nd d u st ou t of th e c ontroller. D u st
a c c u mu la ti on a nd w a ter c a n c a u se elec tri c sh oc k , smok e, or f i re.
To red u c e th e ri sk of i nj u ry , k eep c h i ld ren a w a y w h i le i nsta lli ng , i nsp ec ti ng , or rep a i ri ng th e
c ontroller.
To red u c e th e ri sk of f i re or ex p losi on, d o not p la c e f la mma b le ma teri a ls or u se f la mma b le
sp ra y s a rou nd th e c ontroller.
To red u c e th e ri sk of d a ma g e to th e c ontroller, d o not d i rec tly sp ra y i nsec ti c i d e or oth er
f la mma b le sp ra y s on th e c ontroller.
To red u c e th e ri sk of elec tri c sh oc k or ma lf u nc ti ons, d o not tou c h th e tou c h p a nel,
sw i tc h es, or b u ttons w i th a p oi nty or sh a rp ob j ec t.
3
WT08011X 02
To red u c e th e ri sk of i nj u ry a nd elec tri c sh oc k , a v oi d c onta c t w i th sh a rp ed g es of c erta i n
p a rts.
To a v oi d i nj u ry f rom b rok en g la ss, d o not a p p ly ex c essi v e f orc e on th e g la ss p a rts.
To red u c e th e ri sk of i nj u ry , w ea r p rotec ti v e g ea r w h en w ork i ng on th e c ontroller.
Prec a u ti ons d u ri ng i nsta lla ti on
D o not i nsta ll th e c ontroller w h ere th ere i s a ri sk of lea k i ng f la mma b le g a s. I f f la mma b le
g a s a c c u mu la tes a rou nd th e c ontroller, i t ma y i g ni te a nd c a u se a f i re or ex p losi on.
Prop erly d i sp ose of th e p a c k i ng ma teri a ls. Pla sti c b a g s p ose su f f oc a ti on h a z a rd to
c h i ld ren.
Ta k e a p p rop ri a te sa f ety mea su res a g a i nst ea rth q u a k es to p rev ent th e c ontroller f rom
c a u si ng i nj u ry .
To p rev ent i nj u ry , i nsta ll th e c ontroller on a f la t su rf a c e strong enou g h to su p p ort i ts
w ei g h t.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not i nsta ll th e c ontroller i n a p la c e ex p osed to w a ter or i n a c ond ensi ng env i ronment.
Controller mu st b e i nsta lled b y q u a li f i ed p ersonnel a c c ord i ng to th e i nstru c ti ons d eta i led
i n th e I nsta lla ti on Ma nu a l.
I mp rop er i nsta lla ti on ma y resu lt i n elec tri c sh oc k or f i re.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
Prec a u ti ons d u ri ng w i ri ng
To red u c e th e ri sk of d a ma g e to th e c ontroller, ma lf u nc ti ons, smok e, or f i re, d o not c onnec t
th e p ow er c a b le to th e si g na l termi na l b loc k .
Prop erly sec u re th e c a b les i n p la c e a nd p rov i d e a d eq u a te sla c k i n th e c a b les so a s not to
stress th e termi na ls. I mp rop erly c onnec ted c a b les ma y b rea k , ov erh ea t, a nd c a u se smok e
or f i re.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , sw i tc h of f th e ma i n p ow er b ef ore p erf ormi ng
elec tri c a l w ork .
All elec tri c w ork mu st b e p erf ormed b y a q u a li f i ed elec tri c i a n a c c ord i ng to th e loc a l
reg u la ti ons, sta nd a rd s, a nd th e i nstru c ti ons d eta i led i n th e I nsta lla ti on Ma nu a l. Ca p a c i ty
sh orta g e to th e p ow er su p p ly c i rc u i t or i mp rop er i nsta lla ti on ma y resu lt i n ma lf u nc ti on,
elec tri c sh oc k , smok e, or f i re.
To red u c e th e ri sk of c u rrent lea k a g e, ov erh ea ti ng , smok e, or f i re, u se p rop erly ra ted
c a b les w i th a d eq u a te c u rrent c a rry i ng c a p a c i ty .

2
WT08011X 02
S a f ety Prec a u ti ons
Th orou g h ly rea d th e f ollow i ng sa f ety p rec a u ti ons p ri or to i nsta lla ti on.
O b serv e th ese p rec a u ti ons c a ref u lly to ensu re sa f ety .
Af ter rea d i ng th i s ma nu a l, p a ss i t on to th e end u ser to reta i n f or f u tu re ref erenc e.
K eep th i s ma nu a l f or f u tu re ref erenc e a nd ref er to i t a s nec essa ry . Th i s ma nu a l sh ou ld b e
ma d e a v a i la b le to th ose w h o rep a i r or reloc a te th e c ontroller. Ma k e su re th a t th e ma nu a l
i s p a ssed on to a ny f u tu re u sers.
All elec tri c a l w ork mu st b e p erf ormed b y q u a li f i ed p ersonnel.
: i nd i c a tes a h a z a rd ou s si tu a ti on w h i c h , i f not a v oi d ed , c ou ld resu lt i n
d ea th or seri ou s i nj u ry .
: i nd i c a tes a h a z a rd ou s si tu a ti on w h i c h , i f not a v oi d ed , c ou ld resu lt i n
mi nor or mod era te i nj u ry .
: a d d resses p ra c ti c es not rela ted to p ersona l i nj u ry , su c h a s p rod u c t
a nd / or p rop erty d a ma g e.
G enera l p rec a u ti ons
D o not i nsta ll th e u ni t i n a p la c e w h ere la rg e a mou nts of oi l, stea m, org a ni c solv ents, or
c orrosi v e g a ses, su c h a s su lf u ri c g a s, a re p resent or w h ere a c i d i c / a lk a li ne solu ti ons or
sp ra y s a re u sed f req u ently . Th ese su b sta nc es c a n c omp romi se th e p erf orma nc e of th e u ni t
or c a u se c erta i n c omp onents of th e u ni t to c orrod e, w h i c h c a n resu lt i n elec tri c sh oc k ,
ma lf u nc ti ons, smok e, or f i re.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not w a sh th e c ontroller w i th w a ter or a ny oth er li q u i d .
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, smok e or f i re, d o not op era te th e
sw i tc h es/ b u ttons or tou c h oth er elec tri c a l p a rts w i th w et h a nd s.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , b ef ore sp ra y i ng a c h emi c a l a rou nd th e
c ontroller, stop th e op era ti on a nd c ov er th e c ontroller.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , stop th e op era ti on a nd sw i tc h of f th e p ow er
su p p ly b ef ore c lea ni ng , ma i nta i ni ng , or i nsp ec ti ng th e c ontroller.
Prop erly i nsta ll a ll req u i red c ov ers to k eep moi stu re a nd d u st ou t of th e c ontroller. D u st
a c c u mu la ti on a nd w a ter c a n c a u se elec tri c sh oc k , smok e, or f i re.
To red u c e th e ri sk of i nj u ry , k eep c h i ld ren a w a y w h i le i nsta lli ng , i nsp ec ti ng , or rep a i ri ng th e
c ontroller.
To red u c e th e ri sk of f i re or ex p losi on, d o not p la c e f la mma b le ma teri a ls or u se f la mma b le
sp ra y s a rou nd th e c ontroller.
To red u c e th e ri sk of d a ma g e to th e c ontroller, d o not d i rec tly sp ra y i nsec ti c i d e or oth er
f la mma b le sp ra y s on th e c ontroller.
To red u c e th e ri sk of elec tri c sh oc k or ma lf u nc ti ons, d o not tou c h th e tou c h p a nel,
sw i tc h es, or b u ttons w i th a p oi nty or sh a rp ob j ec t.
3
WT08011X 02
To red u c e th e ri sk of i nj u ry a nd elec tri c sh oc k , a v oi d c onta c t w i th sh a rp ed g es of c erta i n
p a rts.
To a v oi d i nj u ry f rom b rok en g la ss, d o not a p p ly ex c essi v e f orc e on th e g la ss p a rts.
To red u c e th e ri sk of i nj u ry , w ea r p rotec ti v e g ea r w h en w ork i ng on th e c ontroller.
Prec a u ti ons d u ri ng i nsta lla ti on
D o not i nsta ll th e c ontroller w h ere th ere i s a ri sk of lea k i ng f la mma b le g a s. I f f la mma b le
g a s a c c u mu la tes a rou nd th e c ontroller, i t ma y i g ni te a nd c a u se a f i re or ex p losi on.
Prop erly d i sp ose of th e p a c k i ng ma teri a ls. Pla sti c b a g s p ose su f f oc a ti on h a z a rd to
c h i ld ren.
Ta k e a p p rop ri a te sa f ety mea su res a g a i nst ea rth q u a k es to p rev ent th e c ontroller f rom
c a u si ng i nj u ry .
To p rev ent i nj u ry , i nsta ll th e c ontroller on a f la t su rf a c e strong enou g h to su p p ort i ts
w ei g h t.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not i nsta ll th e c ontroller i n a p la c e ex p osed to w a ter or i n a c ond ensi ng env i ronment.
Controller mu st b e i nsta lled b y q u a li f i ed p ersonnel a c c ord i ng to th e i nstru c ti ons d eta i led
i n th e I nsta lla ti on Ma nu a l.
I mp rop er i nsta lla ti on ma y resu lt i n elec tri c sh oc k or f i re.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
Prec a u ti ons d u ri ng w i ri ng
To red u c e th e ri sk of d a ma g e to th e c ontroller, ma lf u nc ti ons, smok e, or f i re, d o not c onnec t
th e p ow er c a b le to th e si g na l termi na l b loc k .
Prop erly sec u re th e c a b les i n p la c e a nd p rov i d e a d eq u a te sla c k i n th e c a b les so a s not to
stress th e termi na ls. I mp rop erly c onnec ted c a b les ma y b rea k , ov erh ea t, a nd c a u se smok e
or f i re.
To red u c e th e ri sk of i nj u ry or elec tri c sh oc k , sw i tc h of f th e ma i n p ow er b ef ore p erf ormi ng
elec tri c a l w ork .
All elec tri c w ork mu st b e p erf ormed b y a q u a li f i ed elec tri c i a n a c c ord i ng to th e loc a l
reg u la ti ons, sta nd a rd s, a nd th e i nstru c ti ons d eta i led i n th e I nsta lla ti on Ma nu a l. Ca p a c i ty
sh orta g e to th e p ow er su p p ly c i rc u i t or i mp rop er i nsta lla ti on ma y resu lt i n ma lf u nc ti on,
elec tri c sh oc k , smok e, or f i re.
To red u c e th e ri sk of c u rrent lea k a g e, ov erh ea ti ng , smok e, or f i re, u se p rop erly ra ted
c a b les w i th a d eq u a te c u rrent c a rry i ng c a p a c i ty .

4
WT08011X 02
To red u c e th e ri sk of elec tri c sh oc k , sh orti ng , or ma lf u nc ti ons, k eep w i re p i ec es a nd sh ea th
sh a v i ng s ou t of th e termi na l b loc k .
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , or ma lf u nc ti ons, k eep th e
c a b les ou t of c onta c t w i th c ontroller ed g es.
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, or f i re, sea l th e g a p b etw een th e c a b les
a nd c a b le a c c ess h oles w i th p u tty .
Prec a u ti ons f or mov i ng or rep a i ri ng th e c ontroller
Th e c ontroller sh ou ld b e rep a i red or mov ed only b y q u a li f i ed p ersonnel. D o not
d i sa ssemb le or mod i f y th e c ontroller.
I mp rop er i nsta lla ti on or rep a i r ma y c a u se i nj u ry , elec tri c sh oc k , or f i re.
To red u c e th e ri sk of sh orti ng , elec tri c sh oc k , f i re, or ma lf u nc ti on, d o not tou c h th e c i rc u i t
b oa rd w i th tools or w i th y ou r h a nd s, a nd d o not a llow d u st to a c c u mu la te on th e c i rc u i t
b oa rd .
5
WT08011X 02
Ad d i ti ona l p rec a u ti ons
To red u c e th e ri sk of ma lf u nc ti ons a nd d a ma g e to th e c ontroller, a v oi d i nsta lli ng th e
c ontroller on a n elec tri c a lly c ond u c ti v e su rf a c e, su c h a s a n u np a i nted meta l sh eet.
To a v oi d d a ma g e to th e c ontroller, u se a p p rop ri a te tools to i nsta ll, i nsp ec t, or rep a i r th e
c ontroller.
Th i s c ontroller i s d esi g ned f or ex c lu si v e u se w i th th e B u i ld i ng Ma na g ement S y stem b y
Mi tsu b i sh i E lec tri c . Th e u se of th i s c ontroller f or w i th oth er sy stems or f or oth er p u rp oses
ma y c a u se ma lf u nc ti ons.
Ta k e a p p rop ri a te mea su res a g a i nst elec tri c a l noi se i nterf erenc e w h en i nsta lli ng th e a i r
c ond i ti oners i n h osp i ta ls or f a c i li ti es w i th ra d i o c ommu ni c a ti on c a p a b i li ti es. I nv erter, h i g h -
f req u enc y med i c a l, or w i reless c ommu ni c a ti on eq u i p ment a s w ell a s p ow er g enera tors
ma y c a u se th e a i r c ond i ti oni ng sy stem to ma lf u nc ti on. Ai r c ond i ti oni ng sy stem ma y a lso
a d v ersely a f f ec t th e op era ti on of th ese ty p es of eq u i p ment b y c rea ti ng elec tri c a l noi se.
To a v oi d ma lf u nc ti ons, d o not b u nd le p ow er c a b les a nd si g na l c a b les tog eth er, or p la c e
th em i n th e sa me meta lli c c ond u i t.
Wh en d ri lli ng a h ole, remov e th e f ront c ov er f rom th e top c a se to p rev ent d a ma g e to th e
c i rc u i t b oa rd .
To p rev ent ma lf u nc ti ons, d o not remov e th e p rotec ti v e f i lm or th e c i rc u i t b oa rd f rom th e
c a se.
To a v oi d d a ma g e to th e c ontroller, d o not ov erti g h ten th e sc rew s.
U se a f la t-h ea d sc rew d ri v er w i th a b la d e w i d th of 4 -7 mm ( 5 / 32-9 / 32 i nc h ) . Th e u se of a
sc rew d ri v er w i th a na rrow er or w i d er b la d e ti p ma y d a ma g e th e c ontroller c a se.
To p rev ent d a ma g e to th e c ontrol b oa rd , d o not i nsert th e d ri v er i nto th e slot strong ly .
To p rev ent d a ma g e to th e c ontroller c a se, d o not f orc e th e d ri v er to tu rn w i th i ts ti p
i nserted i n th e slot.
To a v oi d d i sc olora ti on, d o not u se b enz ene, th i nner, or c h emi c a l ra g to c lea n th e c ontroller.
To c lea n th e c ontroller, w i p e w i th a sof t c loth soa k ed i n w a ter w i th mi ld d eterg ent, w i p e of f
th e d eterg ent w i th a w et c loth , a nd w i p e of f w a ter w i th a d ry c loth .
To a v oi d d a ma g e to th e c ontroller, p rov i d e p rotec ti on a g a i nst sta ti c elec tri c i ty .
D o not u se sold erless termi na ls to c onnec t c a b les to th e termi na l b loc k .
S old erless termi na ls ma y c ome i n c onta c t w i th th e c i rc u i t b oa rd a nd c a u se ma lf u nc ti ons or
d a ma g e th e c ontroller c ov er.
To a v oi d d a ma g e to th e c ontroller, d o not ma k e h oles on th e c ontroller c ov er.
To a v oi d d ef orma ti on a nd ma lf u nc ti on, d o not i nsta ll th e c ontroller i n d i rec t su nli g h t or
w h ere th e a mb i ent temp era tu re ma y ex c eed 4 0º C ( 104 º F ) or d rop b elow 0º C ( 32º F ) .
D o not i nsta ll th e c ontroller on th e c ontrol p a nel d oor.
V i b ra ti ons or sh oc k s to th e c ontroller ma y d a ma g e th e c ontroller or c a u se th e c ontroller to
f a ll.
H old th e c a b les i n p la c e w i th c la mp s to p rev ent u nd u e f orc e f rom b ei ng a p p li ed to th e
termi na l b loc k a nd c a u si ng c a b le b rea k a g e.

4
WT08011X 02
To red u c e th e ri sk of elec tri c sh oc k , sh orti ng , or ma lf u nc ti ons, k eep w i re p i ec es a nd sh ea th
sh a v i ng s ou t of th e termi na l b loc k .
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , or ma lf u nc ti ons, k eep th e
c a b les ou t of c onta c t w i th c ontroller ed g es.
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, or f i re, sea l th e g a p b etw een th e c a b les
a nd c a b le a c c ess h oles w i th p u tty .
Prec a u ti ons f or mov i ng or rep a i ri ng th e c ontroller
Th e c ontroller sh ou ld b e rep a i red or mov ed only b y q u a li f i ed p ersonnel. D o not
d i sa ssemb le or mod i f y th e c ontroller.
I mp rop er i nsta lla ti on or rep a i r ma y c a u se i nj u ry , elec tri c sh oc k , or f i re.
To red u c e th e ri sk of sh orti ng , elec tri c sh oc k , f i re, or ma lf u nc ti on, d o not tou c h th e c i rc u i t
b oa rd w i th tools or w i th y ou r h a nd s, a nd d o not a llow d u st to a c c u mu la te on th e c i rc u i t
b oa rd .
5
WT08011X 02
Ad d i ti ona l p rec a u ti ons
To red u c e th e ri sk of ma lf u nc ti ons a nd d a ma g e to th e c ontroller, a v oi d i nsta lli ng th e
c ontroller on a n elec tri c a lly c ond u c ti v e su rf a c e, su c h a s a n u np a i nted meta l sh eet.
To a v oi d d a ma g e to th e c ontroller, u se a p p rop ri a te tools to i nsta ll, i nsp ec t, or rep a i r th e
c ontroller.
Th i s c ontroller i s d esi g ned f or ex c lu si v e u se w i th th e B u i ld i ng Ma na g ement S y stem b y
Mi tsu b i sh i E lec tri c . Th e u se of th i s c ontroller f or w i th oth er sy stems or f or oth er p u rp oses
ma y c a u se ma lf u nc ti ons.
Ta k e a p p rop ri a te mea su res a g a i nst elec tri c a l noi se i nterf erenc e w h en i nsta lli ng th e a i r
c ond i ti oners i n h osp i ta ls or f a c i li ti es w i th ra d i o c ommu ni c a ti on c a p a b i li ti es. I nv erter, h i g h -
f req u enc y med i c a l, or w i reless c ommu ni c a ti on eq u i p ment a s w ell a s p ow er g enera tors
ma y c a u se th e a i r c ond i ti oni ng sy stem to ma lf u nc ti on. Ai r c ond i ti oni ng sy stem ma y a lso
a d v ersely a f f ec t th e op era ti on of th ese ty p es of eq u i p ment b y c rea ti ng elec tri c a l noi se.
To a v oi d ma lf u nc ti ons, d o not b u nd le p ow er c a b les a nd si g na l c a b les tog eth er, or p la c e
th em i n th e sa me meta lli c c ond u i t.
Wh en d ri lli ng a h ole, remov e th e f ront c ov er f rom th e top c a se to p rev ent d a ma g e to th e
c i rc u i t b oa rd .
To p rev ent ma lf u nc ti ons, d o not remov e th e p rotec ti v e f i lm or th e c i rc u i t b oa rd f rom th e
c a se.
To a v oi d d a ma g e to th e c ontroller, d o not ov erti g h ten th e sc rew s.
U se a f la t-h ea d sc rew d ri v er w i th a b la d e w i d th of 4 -7 mm ( 5 / 32-9 / 32 i nc h ) . Th e u se of a
sc rew d ri v er w i th a na rrow er or w i d er b la d e ti p ma y d a ma g e th e c ontroller c a se.
To p rev ent d a ma g e to th e c ontrol b oa rd , d o not i nsert th e d ri v er i nto th e slot strong ly .
To p rev ent d a ma g e to th e c ontroller c a se, d o not f orc e th e d ri v er to tu rn w i th i ts ti p
i nserted i n th e slot.
To a v oi d d i sc olora ti on, d o not u se b enz ene, th i nner, or c h emi c a l ra g to c lea n th e c ontroller.
To c lea n th e c ontroller, w i p e w i th a sof t c loth soa k ed i n w a ter w i th mi ld d eterg ent, w i p e of f
th e d eterg ent w i th a w et c loth , a nd w i p e of f w a ter w i th a d ry c loth .
To a v oi d d a ma g e to th e c ontroller, p rov i d e p rotec ti on a g a i nst sta ti c elec tri c i ty .
D o not u se sold erless termi na ls to c onnec t c a b les to th e termi na l b loc k .
S old erless termi na ls ma y c ome i n c onta c t w i th th e c i rc u i t b oa rd a nd c a u se ma lf u nc ti ons or
d a ma g e th e c ontroller c ov er.
To a v oi d d a ma g e to th e c ontroller, d o not ma k e h oles on th e c ontroller c ov er.
To a v oi d d ef orma ti on a nd ma lf u nc ti on, d o not i nsta ll th e c ontroller i n d i rec t su nli g h t or
w h ere th e a mb i ent temp era tu re ma y ex c eed 4 0º C ( 104 º F ) or d rop b elow 0º C ( 32º F ) .
D o not i nsta ll th e c ontroller on th e c ontrol p a nel d oor.
V i b ra ti ons or sh oc k s to th e c ontroller ma y d a ma g e th e c ontroller or c a u se th e c ontroller to
f a ll.
H old th e c a b les i n p la c e w i th c la mp s to p rev ent u nd u e f orc e f rom b ei ng a p p li ed to th e
termi na l b loc k a nd c a u si ng c a b le b rea k a g e.

6
WT08011X 02
To p rev ent c a b le b rea k a g e a nd ma lf u nc ti ons, d o not h a ng th e top c ontroller c a se h a ng b y
th e c a b le.
I f th e su p p ly c ord i s d a ma g ed , i t mu st b e rep la c ed b y th e ma nu f a c tu rer, i ts serv i c e a g ent or
si mi la rly q u a li f i ed p ersons i n ord er to a v oi d a h a z a rd .
Th i s a p p li a nc e i s i ntend ed to b e u sed b y ex p ert or tra i ned u sers i n sh op s, i n li g h t i nd u stry
a nd on f a rms, or f or c ommerc i a l u se b y la y p ersons.
Th i s a p p li a nc e i s not i ntend ed f or u se b y p ersons ( i nc lu d i ng c h i ld ren) w i th red u c ed
p h y si c a l, sensory or menta l c a p a b i li ti es, or la c k of ex p eri enc e a nd k now led g e, u nless th ey
h a v e b een g i v en su p erv i si on or i nstru c ti on c onc erni ng u se of th e a p p li a nc e b y a p erson
resp onsi b le f or th ei r sa f ety .
Ch i ld ren sh ou ld b e su p erv i sed to ensu re th a t th ey d o not p la y w i th th e a p p li a nc e.
7
WT08011X 02
1. Pa rts to b e u sed
1-1. Pa c k a g e c ontents
The table below lists all the parts and their quantities included in the package.
Parts name Q ty. Appearance
Remote controller
(front cover)
* 1
1
Remote controller
(top case)
* 1
1
Remote controller
(bottom case) 1
Parts name Q ty. Appearance
Roundhead cross slot screw
M4× 30 2
Wood screw 4.1× 16
(for direct wall installation) 2
Installation Manual
(this manual) 1
Instruction Book 1 
* 1 The front cover is already installed on the top case at factory
shipment.
* 2 Remote controller cable is not included.
1-2. Commerc i a lly a v a i la b le p a rts
Obtain the parts listed below on site.
Parts name Q ty. Notes
Double switch box 1 Not required for direct wall installation.Thin metal conduit Required number
Lock nut and bushing Required number
Cable cover Required number Required for routing remote controller cable along the wall.
Putty As appropriate
Molly anchor Required number
Remote controller cable
(Use a 0.3 mm² (AWG22) 2-core
sheathed cable.) Required number

6
WT08011X 02
To p rev ent c a b le b rea k a g e a nd ma lf u nc ti ons, d o not h a ng th e top c ontroller c a se h a ng b y
th e c a b le.
I f th e su p p ly c ord i s d a ma g ed , i t mu st b e rep la c ed b y th e ma nu f a c tu rer, i ts serv i c e a g ent or
si mi la rly q u a li f i ed p ersons i n ord er to a v oi d a h a z a rd .
Th i s a p p li a nc e i s i ntend ed to b e u sed b y ex p ert or tra i ned u sers i n sh op s, i n li g h t i nd u stry
a nd on f a rms, or f or c ommerc i a l u se b y la y p ersons.
Th i s a p p li a nc e i s not i ntend ed f or u se b y p ersons ( i nc lu d i ng c h i ld ren) w i th red u c ed
p h y si c a l, sensory or menta l c a p a b i li ti es, or la c k of ex p eri enc e a nd k now led g e, u nless th ey
h a v e b een g i v en su p erv i si on or i nstru c ti on c onc erni ng u se of th e a p p li a nc e b y a p erson
resp onsi b le f or th ei r sa f ety .
Ch i ld ren sh ou ld b e su p erv i sed to ensu re th a t th ey d o not p la y w i th th e a p p li a nc e.
7
WT08011X 02
1. Pa rts to b e u sed
1-1. Pa c k a g e c ontents
The table below lists all the parts and their quantities included in the package.
Parts name Q ty. Appearance
Remote controller
(front cover)
* 1
1
Remote controller
(top case)
* 1
1
Remote controller
(bottom case) 1
Parts name Q ty. Appearance
Roundhead cross slot screw
M4× 30 2
Wood screw 4.1× 16
(for direct wall installation) 2
Installation Manual
(this manual) 1
Instruction Book 1 
* 1 The front cover is already installed on the top case at factory
shipment.
* 2 Remote controller cable is not included.
1-2. Commerc i a lly a v a i la b le p a rts
Obtain the parts listed below on site.
Parts name Q ty. Notes
Double switch box 1 Not required for direct wall installation.Thin metal conduit Required number
Lock nut and bushing Required number
Cable cover Required number Required for routing remote controller cable along the wall.
Putty As appropriate
Molly anchor Required number
Remote controller cable
(Use a 0.3 mm² (AWG22) 2-core
sheathed cable.) Required number

8
WT08011X 02
2. G enera l d esc ri p ti on of i nsta lla ti on
[ 1] I nsta lla ti on u si ng a d ou b le sw i tc h b ox
[ 2] D i rec t w a ll i nsta lla ti on
Front cover
(supplied) Top case (supplied)
Roundhead cross slot screws
(supplied) Remote controller cable
(Commercially available)
Seal the cable access hole with putty.
Double switch box
(Commercially available)
Front cover
(supplied) Top case (supplied)
Remote controller cable
(Commercially available)
Thread the cable through the groove.
Wood screw
(supplied)
9
WT08011X 02
3. S elec ti ng a n i nsta lla ti on si te
D o not i nsta ll th e c ontroller w h ere th ere i s a ri sk of lea k i ng f la mma b le g a s. I f f la mma b le
g a s a c c u mu la tes a rou nd th e c ontroller, i t ma y i g ni te a nd c a u se a f i re or ex p losi on.
To p rev ent i nj u ry , i nsta ll th e c ontroller on a f la t su rf a c e strong enou g h to su p p ort i ts
w ei g h t.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not i nsta ll th e c ontroller i n a p la c e ex p osed to w a ter or i n a c ond ensi ng env i ronment.
To red u c e th e ri sk of ma lf u nc ti ons a nd d a ma g e to th e c ontroller, a v oi d i nsta lli ng th e
c ontroller on a n elec tri c a lly c ond u c ti v e su rf a c e, su c h a s a n u np a i nted meta l sh eet.
To a v oi d d ef orma ti on a nd ma lf u nc ti on, d o not i nsta ll th e c ontroller i n d i rec t su nli g h t or
w h ere th e a mb i ent temp era tu re ma y ex c eed 4 0º C ( 104 º F ) or d rop b elow 0º C ( 32º F ) .
Ta k e a p p rop ri a te mea su res a g a i nst elec tri c a l noi se i nterf erenc e w h en i nsta lli ng th e a i r
c ond i ti oners i n h osp i ta ls or f a c i li ti es w i th ra d i o c ommu ni c a ti on c a p a b i li ti es. I nv erter, h i g h -
f req u enc y med i c a l, or w i reless c ommu ni c a ti on eq u i p ment a s w ell a s p ow er g enera tors
ma y c a u se th e a i r c ond i ti oni ng sy stem to ma lf u nc ti on. Ai r c ond i ti oni ng sy stem ma y a lso
a d v ersely a f f ec t th e op era ti on of th ese ty p es of eq u i p ment b y c rea ti ng elec tri c a l noi se.
3-1. N otes to ensu re op ti ma l p rod u c t f u nc ti ona li ty
This remote controller is specified for wall installation. Y ou can select either “ Installation using a double switch box”
or “ Direct wall installation” . For “ Direct wall installation” , you can select either “ From the rear” or “ From the top” as
method for routing the wiring.
Install the remote controller (double switch box) on a flat section of wall.
[ 1] I nsta lla ti on sp a c e
Leave a space around the remote controller as shown in the figure at right,
regardless of whether the controller is installed in the double switch box or directly
on the wall. Removing the remote controller will not be easy with insufficient
space.
Also, leave an operating space in front of the remote controller.
30 (1-3/16)
30
(1-3/16)
Unit: mm (in)
30
(1-3/16)
120 (4-3/4)

8
WT08011X 02
2. G enera l d esc ri p ti on of i nsta lla ti on
[ 1] I nsta lla ti on u si ng a d ou b le sw i tc h b ox
[ 2] D i rec t w a ll i nsta lla ti on
Front cover
(supplied) Top case (supplied)
Roundhead cross slot screws
(supplied) Remote controller cable
(Commercially available)
Seal the cable access hole with putty.
Double switch box
(Commercially available)
Front cover
(supplied) Top case (supplied)
Remote controller cable
(Commercially available)
Thread the cable through the groove.
Wood screw
(supplied)
9
WT08011X 02
3. S elec ti ng a n i nsta lla ti on si te
D o not i nsta ll th e c ontroller w h ere th ere i s a ri sk of lea k i ng f la mma b le g a s. I f f la mma b le
g a s a c c u mu la tes a rou nd th e c ontroller, i t ma y i g ni te a nd c a u se a f i re or ex p losi on.
To p rev ent i nj u ry , i nsta ll th e c ontroller on a f la t su rf a c e strong enou g h to su p p ort i ts
w ei g h t.
To red u c e th e ri sk of sh orti ng , c u rrent lea k a g e, elec tri c sh oc k , ma lf u nc ti ons, smok e, or f i re,
d o not i nsta ll th e c ontroller i n a p la c e ex p osed to w a ter or i n a c ond ensi ng env i ronment.
To red u c e th e ri sk of ma lf u nc ti ons a nd d a ma g e to th e c ontroller, a v oi d i nsta lli ng th e
c ontroller on a n elec tri c a lly c ond u c ti v e su rf a c e, su c h a s a n u np a i nted meta l sh eet.
To a v oi d d ef orma ti on a nd ma lf u nc ti on, d o not i nsta ll th e c ontroller i n d i rec t su nli g h t or
w h ere th e a mb i ent temp era tu re ma y ex c eed 4 0º C ( 104 º F ) or d rop b elow 0º C ( 32º F ) .
Ta k e a p p rop ri a te mea su res a g a i nst elec tri c a l noi se i nterf erenc e w h en i nsta lli ng th e a i r
c ond i ti oners i n h osp i ta ls or f a c i li ti es w i th ra d i o c ommu ni c a ti on c a p a b i li ti es. I nv erter, h i g h -
f req u enc y med i c a l, or w i reless c ommu ni c a ti on eq u i p ment a s w ell a s p ow er g enera tors
ma y c a u se th e a i r c ond i ti oni ng sy stem to ma lf u nc ti on. Ai r c ond i ti oni ng sy stem ma y a lso
a d v ersely a f f ec t th e op era ti on of th ese ty p es of eq u i p ment b y c rea ti ng elec tri c a l noi se.
3-1. N otes to ensu re op ti ma l p rod u c t f u nc ti ona li ty
This remote controller is specified for wall installation. Y ou can select either “ Installation using a double switch box”
or “ Direct wall installation” . For “ Direct wall installation” , you can select either “ From the rear” or “ From the top” as
method for routing the wiring.
Install the remote controller (double switch box) on a flat section of wall.
[ 1] I nsta lla ti on sp a c e
Leave a space around the remote controller as shown in the figure at right,
regardless of whether the controller is installed in the double switch box or directly
on the wall. Removing the remote controller will not be easy with insufficient
space.
Also, leave an operating space in front of the remote controller.
30 (1-3/16)
30
(1-3/16)
Unit: mm (in)
30
(1-3/16)
120 (4-3/4)

10
WT08011X 02
4 . I nsta lla ti on/ w i ri ng w ork
4 -1. Constru c ti on w ork p roc ed u res a nd i nsta lla ti on
When the installation site is ready for installation, carry out the installation work.
[ 1] I nsta lla ti on u si ng a d ou b le sw i tc h b ox
Before applying a wall finish material, install the double switch box, connect it to the conduit tube and route the
cable beforehand.
Then apply the wall finish material.
[ 2] D i rec t w a ll i nsta lla ti on
Before applying a wall finish material, route the cable to the location where the remote controller will be installed.
Then apply the wall finish material.
4 -2. D i f f erenc es w i th p rev i ou s i nsta lla ti on meth od s
Please note that the wiring for the remote controller differs depending on the system configuration.
For details on the wiring to the connected units and on the installation work for the connected units, refer to the
Installation Manual for the connected units.
Note
Do not route wiring that bridges the remote controller terminal block.
The total length should be 250 m (820 ft).
4 -3. I nsta lla ti on a nd elec tri c a l w ork
4 -3-1. Req u i red tools
Flat-tip screwdriver (blade width: 4-7 mm (5/32-9/32 in)) or Plate service tool
(parts code: R61 008 235)
Nippers
Other general tool
4 -3-2. I nsta lla ti on w ork
[ 1] I nsta lli ng th e remote c ontroller
The method for the installation work is either “ Installation using a double switch box” or “ Direct wall installation” .
Carry out the work needed for the respective installation method.
( 1) D ri ll a h ole i n th e w a ll.
■Installation using a double switch box
Procedures
1. Drill a hole in the wall, and install the double switch
box on the wall.
2. Connect the double switch box to the conduit tube.
■Direct wall installation
Procedures
1. Drill a hole in the wall.
2. Thread the remote controller cable through it.
Plate service tool
Wall
Bushing
Remote controller cable
Conduit tube
Locknut
Double switch box
Seal the gap with putty.
11
WT08011X 02
( 2) S ea l th e c a b le a c c ess h ole w i th p u tty .
■Installation using a double switch box
Procedures
1. Seal the remote controller cable access hole at the connection of double switch box and conduit tube with
putty.
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, or f i re, sea l th e g a p b etw een th e c a b les
a nd c a b le a c c ess h oles w i th p u tty .
( 3) Prep a re th e remote c ontroller.
Procedures
1. Remove the bottom case of the remote
controller.
( 4 ) Connec t th e remote c ontroller c a b le to th e termi na l b loc k on th e b ottom c a se.
Procedures
1. Strip the sheath of the remote controller cable as shown in the figure below and thread it from the rear of
the bottom case.
2. Insert the remote controller cable towards the front of the bottom case until the section with the sheath
stripped off is no longer visible from the back.
3. Connect the remote controller cable to the terminal block, ensuring that the sheath is not pinched.
■Direct wall installation
Procedures
1. Seal the hole through which the cable is threaded with putty.
Front cover and top case Bottom case
Sheath
Insert the sheathed section as far
as the front.
10 mm (16/32 in)
6 mm (8/32 in)
Front
Thread the cable.
Back
The 2-core cable
should not be visible
from the back.
Connect the cable.
(non-polariz ed)
Route the cable behind the remote controller.
Seal the gap with putty.
Remote controller cable

10
WT08011X 02
4 . I nsta lla ti on/ w i ri ng w ork
4 -1. Constru c ti on w ork p roc ed u res a nd i nsta lla ti on
When the installation site is ready for installation, carry out the installation work.
[ 1] I nsta lla ti on u si ng a d ou b le sw i tc h b ox
Before applying a wall finish material, install the double switch box, connect it to the conduit tube and route the
cable beforehand.
Then apply the wall finish material.
[ 2] D i rec t w a ll i nsta lla ti on
Before applying a wall finish material, route the cable to the location where the remote controller will be installed.
Then apply the wall finish material.
4 -2. D i f f erenc es w i th p rev i ou s i nsta lla ti on meth od s
Please note that the wiring for the remote controller differs depending on the system configuration.
For details on the wiring to the connected units and on the installation work for the connected units, refer to the
Installation Manual for the connected units.
Note
Do not route wiring that bridges the remote controller terminal block.
The total length should be 250 m (820 ft).
4 -3. I nsta lla ti on a nd elec tri c a l w ork
4 -3-1. Req u i red tools
Flat-tip screwdriver (blade width: 4-7 mm (5/32-9/32 in)) or Plate service tool
(parts code: R61 008 235)
Nippers
Other general tool
4 -3-2. I nsta lla ti on w ork
[ 1] I nsta lli ng th e remote c ontroller
The method for the installation work is either “ Installation using a double switch box” or “ Direct wall installation” .
Carry out the work needed for the respective installation method.
( 1) D ri ll a h ole i n th e w a ll.
■Installation using a double switch box
Procedures
1. Drill a hole in the wall, and install the double switch
box on the wall.
2. Connect the double switch box to the conduit tube.
■Direct wall installation
Procedures
1. Drill a hole in the wall.
2. Thread the remote controller cable through it.
Plate service tool
Wall
Bushing
Remote controller cable
Conduit tube
Locknut
Double switch box
Seal the gap with putty.
11
WT08011X 02
( 2) S ea l th e c a b le a c c ess h ole w i th p u tty .
■Installation using a double switch box
Procedures
1. Seal the remote controller cable access hole at the connection of double switch box and conduit tube with
putty.
To red u c e th e ri sk of elec tri c sh oc k , ma lf u nc ti ons, or f i re, sea l th e g a p b etw een th e c a b les
a nd c a b le a c c ess h oles w i th p u tty .
( 3) Prep a re th e remote c ontroller.
Procedures
1. Remove the bottom case of the remote
controller.
( 4 ) Connec t th e remote c ontroller c a b le to th e termi na l b loc k on th e b ottom c a se.
Procedures
1. Strip the sheath of the remote controller cable as shown in the figure below and thread it from the rear of
the bottom case.
2. Insert the remote controller cable towards the front of the bottom case until the section with the sheath
stripped off is no longer visible from the back.
3. Connect the remote controller cable to the terminal block, ensuring that the sheath is not pinched.
■Direct wall installation
Procedures
1. Seal the hole through which the cable is threaded with putty.
Front cover and top case Bottom case
Sheath
Insert the sheathed section as far
as the front.
10 mm (16/32 in)
6 mm (8/32 in)
Front
Thread the cable.
Back
The 2-core cable
should not be visible
from the back.
Connect the cable.
(non-polariz ed)
Route the cable behind the remote controller.
Seal the gap with putty.
Remote controller cable

12
WT08011X 02
To red u c e th e ri sk of elec tri c sh oc k , sh orti ng , or ma lf u nc ti ons, k eep w i re p i ec es a nd sh ea th
sh a v i ng s ou t of th e termi na l b loc k .
D o not u se sold erless termi na ls to c onnec t c a b les to th e termi na l b loc k .
S old erless termi na ls ma y c ome i n c onta c t w i th th e c i rc u i t b oa rd a nd c a u se ma lf u nc ti ons or
d a ma g e th e c ontroller c ov er.
( 5 ) I nsta ll th e b ottom c a se.
■Installation using a double switch box
Procedures
1. Secure at least two corners of the bottom case with screws.
■Direct wall installation
Procedures
1. Thread the cable through the groove.
2. Secure at least two corners of the bottom case with screws.
3. Be sure to secure top-left and bottom-right corners of the remote controller (viewed from the front) to
prevent it from lifting (Use molly anchor etc.)
Double switch box
Roundhead cross
slot screws
Installation using a double switch box
Seal the cable access hole with putty.
See (2).
Remote controller cable
See (4).
Wood screw
Direct wall installation
Remote controller cable
See (4).
Thread the cable through the
groove.
13
WT08011X 02
To a v oi d d a ma g e to th e c ontroller, d o not ov erti g h ten th e sc rew s.
To a v oi d d a ma g e to th e c ontroller, d o not ma k e h oles on th e c ontroller c ov er.
( 6 ) D ri ll a c a b le h ole.
■Direct wall installation (when running the cable along
the wall)
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm
(5/32-9/32 in) wide blade onto one of the two
mounting tabs in the bottom of the remote
controller, or push the plate service tool onto both
of the tabs in the bottom of the remote controller,
and then move it in the direction indicated by the
arrows. This frees the top case from the front
cover slightly so pull the top case upwards and
towards you to remove it.
2. Cut out the thin section on the inner side of the
front cover (the darkened section in the figure at
right) with a pair of nippers. (Pull out the remote
controller cable that was threaded through the
cable groove in the back of the bottom case
through this section.)
3. Fit the top case onto the front cover.
Wh en d ri lli ng a h ole, remov e th e f ront c ov er f rom th e top c a se to p rev ent d a ma g e to th e
c i rc u i t b oa rd .
( 7 ) Rou te th e w i re to th e top c a se.
Procedures
1. Connect the connector on the bottom case to the connector on the top case.
To p rev ent ma lf u nc ti ons, d o not remov e th e p rotec ti v e f i lm or th e c i rc u i t b oa rd f rom th e
c a se.
To p rev ent c a b le b rea k a g e a nd ma lf u nc ti ons, d o not h a ng th e top c ontroller c a se h a ng b y
th e c a b le.
Top case
Front cover
Protection Sheet
Plate service tool
or
Securely connect the
connector.

12
WT08011X 02
To red u c e th e ri sk of elec tri c sh oc k , sh orti ng , or ma lf u nc ti ons, k eep w i re p i ec es a nd sh ea th
sh a v i ng s ou t of th e termi na l b loc k .
D o not u se sold erless termi na ls to c onnec t c a b les to th e termi na l b loc k .
S old erless termi na ls ma y c ome i n c onta c t w i th th e c i rc u i t b oa rd a nd c a u se ma lf u nc ti ons or
d a ma g e th e c ontroller c ov er.
( 5 ) I nsta ll th e b ottom c a se.
■Installation using a double switch box
Procedures
1. Secure at least two corners of the bottom case with screws.
■Direct wall installation
Procedures
1. Thread the cable through the groove.
2. Secure at least two corners of the bottom case with screws.
3. Be sure to secure top-left and bottom-right corners of the remote controller (viewed from the front) to
prevent it from lifting (Use molly anchor etc.)
Double switch box
Roundhead cross
slot screws
Installation using a double switch box
Seal the cable access hole with putty.
See (2).
Remote controller cable
See (4).
Wood screw
Direct wall installation
Remote controller cable
See (4).
Thread the cable through the
groove.
13
WT08011X 02
To a v oi d d a ma g e to th e c ontroller, d o not ov erti g h ten th e sc rew s.
To a v oi d d a ma g e to th e c ontroller, d o not ma k e h oles on th e c ontroller c ov er.
( 6 ) D ri ll a c a b le h ole.
■Direct wall installation (when running the cable along
the wall)
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm
(5/32-9/32 in) wide blade onto one of the two
mounting tabs in the bottom of the remote
controller, or push the plate service tool onto both
of the tabs in the bottom of the remote controller,
and then move it in the direction indicated by the
arrows. This frees the top case from the front
cover slightly so pull the top case upwards and
towards you to remove it.
2. Cut out the thin section on the inner side of the
front cover (the darkened section in the figure at
right) with a pair of nippers. (Pull out the remote
controller cable that was threaded through the
cable groove in the back of the bottom case
through this section.)
3. Fit the top case onto the front cover.
Wh en d ri lli ng a h ole, remov e th e f ront c ov er f rom th e top c a se to p rev ent d a ma g e to th e
c i rc u i t b oa rd .
( 7 ) Rou te th e w i re to th e top c a se.
Procedures
1. Connect the connector on the bottom case to the connector on the top case.
To p rev ent ma lf u nc ti ons, d o not remov e th e p rotec ti v e f i lm or th e c i rc u i t b oa rd f rom th e
c a se.
To p rev ent c a b le b rea k a g e a nd ma lf u nc ti ons, d o not h a ng th e top c ontroller c a se h a ng b y
th e c a b le.
Top case
Front cover
Protection Sheet
Plate service tool
or
Securely connect the
connector.

14
WT08011X 02
( 8) S ec u re th e c a b les i n th e c la mp s.
H old th e c a b les i n p la c e w i th c la mp s to p rev ent u nd u e f orc e f rom b ei ng a p p li ed to th e
termi na l b loc k a nd c a u si ng c a b le b rea k a g e.
( 9 ) Atta c h th e remote c ontroller f ront c ov er a nd top c a se.
Procedures
1. Two mounting tabs are at the top of the top case. (A cover is already installed on the case at the time of
factory shipment.) Hook those two tabs onto the bottom case, and click the top case into place.
2. Check that the case is securely installed and not lifted.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
■Direct wall installation (when running the cable along the wall)
Procedures
1. Thread the remote controller cable through the access hole at the
top of the remote controller.
2. Seal the cut-out part of the cover with putty.
3. Use a cable cover.
This completes the installation work. To remove the installed components, follow the procedure below.
Secure the cables.
Clamp
Wall
No lifting
Use a cable cover.
Seal the gap with putty.
Thread the cable through the top of the
remote controller.
15
WT08011X 02
[ 2] Remov i ng th e remote c ontroller f ront c ov er a nd top c a se
( 1) Remov e th e f ront c ov er.
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm (5/32-
9/32 in) wide blade onto one of the two mounting
tabs in the bottom of the remote controller, or push
the plate service tool onto both of the tabs in the
bottom of the remote controller, and then move it in
the direction indicated by the arrows.
This will unhook the mounting tabs.
2. Pull the front cover upwards and towards you to remove it.
Inserting the screwdriver blade deep into the slot will remove the front cover and top case together.
( 2) Remov e th e top c a se.
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm (5/32-9/32
in) wide blade onto one of the two mounting tabs in the
bottom of the remote controller and remove the front
cover in the same way.
Inserting the screwdriver blade deep into the slot will
remove the front cover and top case together.
To p rev ent d a ma g e to th e c ontrol b oa rd , d o not i nsert th e d ri v er i nto th e slot strong ly .
To p rev ent d a ma g e to th e c ontroller c a se, d o not f orc e th e d ri v er to tu rn w i th i ts ti p
i nserted i n th e slot.
or
Wall Wall
or

14
WT08011X 02
( 8) S ec u re th e c a b les i n th e c la mp s.
H old th e c a b les i n p la c e w i th c la mp s to p rev ent u nd u e f orc e f rom b ei ng a p p li ed to th e
termi na l b loc k a nd c a u si ng c a b le b rea k a g e.
( 9 ) Atta c h th e remote c ontroller f ront c ov er a nd top c a se.
Procedures
1. Two mounting tabs are at the top of the top case. (A cover is already installed on the case at the time of
factory shipment.) Hook those two tabs onto the bottom case, and click the top case into place.
2. Check that the case is securely installed and not lifted.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
■Direct wall installation (when running the cable along the wall)
Procedures
1. Thread the remote controller cable through the access hole at the
top of the remote controller.
2. Seal the cut-out part of the cover with putty.
3. Use a cable cover.
This completes the installation work. To remove the installed components, follow the procedure below.
Secure the cables.
Clamp
Wall
No lifting
Use a cable cover.
Seal the gap with putty.
Thread the cable through the top of the
remote controller.
15
WT08011X 02
[ 2] Remov i ng th e remote c ontroller f ront c ov er a nd top c a se
( 1) Remov e th e f ront c ov er.
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm (5/32-
9/32 in) wide blade onto one of the two mounting
tabs in the bottom of the remote controller, or push
the plate service tool onto both of the tabs in the
bottom of the remote controller, and then move it in
the direction indicated by the arrows.
This will unhook the mounting tabs.
2. Pull the front cover upwards and towards you to remove it.
Inserting the screwdriver blade deep into the slot will remove the front cover and top case together.
( 2) Remov e th e top c a se.
Procedures
1. Press the flat-tip screwdriver with a 4-7 mm (5/32-9/32
in) wide blade onto one of the two mounting tabs in the
bottom of the remote controller and remove the front
cover in the same way.
Inserting the screwdriver blade deep into the slot will
remove the front cover and top case together.
To p rev ent d a ma g e to th e c ontrol b oa rd , d o not i nsert th e d ri v er i nto th e slot strong ly .
To p rev ent d a ma g e to th e c ontroller c a se, d o not f orc e th e d ri v er to tu rn w i th i ts ti p
i nserted i n th e slot.
or
Wall Wall
or

16
WT08011X 02
( 3) Atta c h th e f ront c ov er a nd top c a se.
Two mounting tabs are at the top of the top case.
Procedures
1. Hook the mounting tabs onto the
bottom case and click the top case
into place.
2. Hook the front cover onto the top
case in the same way.
Check that the case is securely
installed and not lifted.
Prop erly i nsta ll a ll req u i red c ov ers to k eep moi stu re a nd d u st ou t of th e c ontroller. D u st
a c c u mu la ti on a nd w a ter c a n c a u se elec tri c sh oc k , smok e, or f i re.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
4 -4 . S erv i c e
Refer to the procedure above whenever you remove the front cover and top case.
Wall
Top case
No lifting
Front cover Top case
17
WT08011X 02
5 . Ch ec k a f ter i nsta lla ti on w ork
When you have completed the installation work, inspect the work again by referring to the table below.
Be sure to correct any problems found during the inspection. (Failing to correct problems could not only impair
functioning but could also pose a safety haz ard.)
5 -1. I nsta lla ti on w ork c h ec k li st
Item to check Check result
Installation
environment Required space are provided around the installation
Remote controller
No scrapings or similar debris from the remote controller cable gets
into the terminal block
Remote controller cable access hole has been sealed with putty or
equivalent material
Front cover and top case are securely installed without any looseness
5 -2. Ma k i ng th e setti ng s f or th e h ot w a ter sensor
Refer to the Installation Manual and Instruction Book for the connected units for how to make the settings for the hot
water sensor.
5 -3. Remov i ng th e p rotec ti v e f i lm
A protective film is applied over the front cover controls at the time of factory shipment.
Before use, remove the protective film.
6 . Tri a l ru n
6 -1. Tri a l ru n p roc ed u re
With the customer, conduct a trial run as outlined in the Installation Manual and Instruction Book for the connected
units.
6 -2. I tems to c h ec k d u ri ng th e tri a l ru n
Check that the water supply temperature on the remote controller screen is rising.
7 . E x p la na ti ons to c u stomers
Provide the user with an explanation of how to use the remote controller correctly, as stated in the Instruction
Book.
Inform the user of the information provided in the “ Safety Precautions” and that those precautions must be followed
at all times.
After the installation, hand over this Installation Manual to the user together with the accompanying Instruction
Book.
If another person takes over as the user, hand over this Installation Manual to the new user.

16
WT08011X 02
( 3) Atta c h th e f ront c ov er a nd top c a se.
Two mounting tabs are at the top of the top case.
Procedures
1. Hook the mounting tabs onto the
bottom case and click the top case
into place.
2. Hook the front cover onto the top
case in the same way.
Check that the case is securely
installed and not lifted.
Prop erly i nsta ll a ll req u i red c ov ers to k eep moi stu re a nd d u st ou t of th e c ontroller. D u st
a c c u mu la ti on a nd w a ter c a n c a u se elec tri c sh oc k , smok e, or f i re.
Wh en a tta c h i ng th e c ov er a nd th e top c a se to th e b ottom c a se, p u sh i t u nti l i t th ey c li c k
i nto p la c e. I f th ey a re not p rop erly loc k ed i nto p la c e, th ey ma y f a ll, c a u si ng p ersona l i nj u ry ,
c ontroller d a ma g e, or ma lf u nc ti ons.
4 -4 . S erv i c e
Refer to the procedure above whenever you remove the front cover and top case.
Wall
Top case
No lifting
Front cover Top case
17
WT08011X 02
5 . Ch ec k a f ter i nsta lla ti on w ork
When you have completed the installation work, inspect the work again by referring to the table below.
Be sure to correct any problems found during the inspection. (Failing to correct problems could not only impair
functioning but could also pose a safety haz ard.)
5 -1. I nsta lla ti on w ork c h ec k li st
Item to check Check result
Installation
environment Required space are provided around the installation
Remote controller
No scrapings or similar debris from the remote controller cable gets
into the terminal block
Remote controller cable access hole has been sealed with putty or
equivalent material
Front cover and top case are securely installed without any looseness
5 -2. Ma k i ng th e setti ng s f or th e h ot w a ter sensor
Refer to the Installation Manual and Instruction Book for the connected units for how to make the settings for the hot
water sensor.
5 -3. Remov i ng th e p rotec ti v e f i lm
A protective film is applied over the front cover controls at the time of factory shipment.
Before use, remove the protective film.
6 . Tri a l ru n
6 -1. Tri a l ru n p roc ed u re
With the customer, conduct a trial run as outlined in the Installation Manual and Instruction Book for the connected
units.
6 -2. I tems to c h ec k d u ri ng th e tri a l ru n
Check that the water supply temperature on the remote controller screen is rising.
7 . E x p la na ti ons to c u stomers
Provide the user with an explanation of how to use the remote controller correctly, as stated in the Instruction
Book.
Inform the user of the information provided in the “ Safety Precautions” and that those precautions must be followed
at all times.
After the installation, hand over this Installation Manual to the user together with the accompanying Instruction
Book.
If another person takes over as the user, hand over this Installation Manual to the new user.

18
WT08011X 02
8. F or th e sa f e a nd long -term u se of th e remote
c ontroller
8-1. D a i ly ma i ntena nc e
8-1-1. Clea ni ng th e c ov er
First wipe with a soft cloth moistened with mild detergent and then wipe with a dry cloth to remove all traces of
detergent. Do not use benz ene, thinners or scouring powder.
8-2. Pa rts rep la c ement d u ri ng i nsp ec ti ons a nd th ei r h old i ng p eri od s
<Reference> Replacement intervals for maj or components
Maj or component Approx. replacement interval
Remote controller 10 years
* This table lists the maj or components. Check the maintenance agreement for details.
* Replacement intervals are different from the periods of guarantee.
* This maintenance cycle indicates the approximate period for maintenance activity that will promote the safe, long-term use of
the product. As such, it should be used to schedule appropriate maintenance (budgeting for maintenance and inspection costs).
19
WT08011X 02
9 . Pa rts na mes
9 -1. E x p la na ti on of ea c h b u tton on th e remote c ontroller
⑦
②
⑥
①
④
③
⑤
Item Details
󰴤 [ ON/OFF] button Press to turn on or off the heat source system.
󰴥 Function button Press to monitor the status of connected units on the Main display and to make settings.
Press these buttons also to select menu options and settings on each screen.
󰴦 [ Menu] button Press to bring up the Main menu.
󰴧 [ Return] button Press to return to the previous screen. (depending on the screen)
󰴨 [ Select] button Press to j ump to the settings screen or to save the settings.
󰴩 ON/OFF lamp Stays lit in green during normal operation. Blinks during startup and when an error occurs.
󰴪 Backlit LCD
Dot display.
Pressing any of the buttons turns on the backlight, which turns off after a certain period of
time. The backlighting time varies depending on the screen.
Pressing another button while the backlight is on extends the backlighting time.
Note
When the backlight is off, the first button-push simply turns backlighting on and does not trigger the actual
button action. (This does not apply to pressing the [ ON/OFF] button when the controller is OFF.)
[ Return] button
[ Menu] button
[ Select] button
Backlit LCD
Function button
ON/OFF lamp
[ ON/OFF] button
[ F1] , [ F2] , [ F3] , and [ F4] from the left)

18
WT08011X 02
8. F or th e sa f e a nd long -term u se of th e remote
c ontroller
8-1. D a i ly ma i ntena nc e
8-1-1. Clea ni ng th e c ov er
First wipe with a soft cloth moistened with mild detergent and then wipe with a dry cloth to remove all traces of
detergent. Do not use benz ene, thinners or scouring powder.
8-2. Pa rts rep la c ement d u ri ng i nsp ec ti ons a nd th ei r h old i ng p eri od s
<Reference> Replacement intervals for maj or components
Maj or component Approx. replacement interval
Remote controller 10 years
* This table lists the maj or components. Check the maintenance agreement for details.
* Replacement intervals are different from the periods of guarantee.
* This maintenance cycle indicates the approximate period for maintenance activity that will promote the safe, long-term use of
the product. As such, it should be used to schedule appropriate maintenance (budgeting for maintenance and inspection costs).
19
WT08011X 02
9 . Pa rts na mes
9 -1. E x p la na ti on of ea c h b u tton on th e remote c ontroller
⑦
②
⑥
①
④
③
⑤
Item Details
󰴤 [ ON/OFF] button Press to turn on or off the heat source system.
󰴥 Function button Press to monitor the status of connected units on the Main display and to make settings.
Press these buttons also to select menu options and settings on each screen.
󰴦 [ Menu] button Press to bring up the Main menu.
󰴧 [ Return] button Press to return to the previous screen. (depending on the screen)
󰴨 [ Select] button Press to j ump to the settings screen or to save the settings.
󰴩 ON/OFF lamp Stays lit in green during normal operation. Blinks during startup and when an error occurs.
󰴪 Backlit LCD
Dot display.
Pressing any of the buttons turns on the backlight, which turns off after a certain period of
time. The backlighting time varies depending on the screen.
Pressing another button while the backlight is on extends the backlighting time.
Note
When the backlight is off, the first button-push simply turns backlighting on and does not trigger the actual
button action. (This does not apply to pressing the [ ON/OFF] button when the controller is OFF.)
[ Return] button
[ Menu] button
[ Select] button
Backlit LCD
Function button
ON/OFF lamp
[ ON/OFF] button
[ F1] , [ F2] , [ F3] , and [ F4] from the left)

20
WT08011X 02
9 -2. U si ng th e f u nc ti on b u ttons
< E x a mp le of u se on th e Ma i n menu sc reen>
9/ 4 14:30
F1 F2 F3 F4
Pressing the [ Menu] button on the Main display (See section 11-1 “ Turning the power on” .) will bring up the Main
menu as shown below.
Icon Details
Error information * 1* 3
cheleoer ve * 1* 3
Running information * 1* 3
Initial settings * 2* 3
Service * 2
* 1 Refer to the Instruction Book for details.
* 2 Explained in this manual.
* 3 If no buttons are pressed for 10 minutes on each screen, the screen will automatically return to the Main display. Any settings that have not
been saved will be lost.
The available menu items depend on the connected unit model.
For items not described in the manuals that are enclosed with this remote controller, refer to the manuals that came
with the connected units.
10. Prep a ra ti ons
Check that the remote controller installation work is completed in accordance with this manual, and that the
installation work for connected units has been completed.
Cursor Move the cursor to the desired function with the [ F2]
and [ F3] buttons, and press the [ Select] button to go
to the next page. Password may be required.
Button function guide will appear at the bottom of
the screens.
Unit1
SchedulePower Save
FRI
21
WT08011X 02
11. O p era ti ons
11-1. Tu rni ng th e p ow er on
Procedures
1. Turn the connected units on.
When the connected units are turned on, the screen shown on the right
appears.
If it starts up normally, the Main display appears.
During operation The ON/OFF lamp (green) lights and operation starts.
During stoppage The ON/OFF lamp turns off and operation stops.
Note
When you are using two remote controllers, set one of the two remote controllers as the sub remote controller.
Refer to section 11-3 “ Initial settings” for how to make the Main/Sub setting.
Refer to the Instruction Book for the meanings of the icons shown.
Normal (shows startup progress as a
percentage)
Unit1
Please wait
FRI
Unit1 FRI
N ex t
Unit1 FRI
N ex t