HydroTherm R SERIES Manual

R
RC C2 2- -1 10 00 04 4
4
42 2- -9 91 15 59 9
IN UNITED STATES: 260 NORTH ELM ST., WESTFIELD, MA 01085 [phone]/FAX [phone]
IN CANADA: 5211 CREEKBANK ROAD, MISSISSAUGA, ONT. L4W IR3 [phone]/FAX [phone]
MMOODDEELLRRSSEERRIIEESS
IINNSSTTAALLLLAATTIIOONN,,
OOPPEERRAATTIIOONN&&
MMAAIINNTTEENNAANNCCEE
MMAANNUUAALL&&
RREEPPLLAACCEEMMEENNTT
PPAARRTTSSLLIISSTT
G
Ga as s- -F Fi ir re ed dW Wa at te er rC Ca as st tI Ir ro on nB Bo oi il le er rs s
1
18 80 0, ,0 00 00 0t to o3 30 00 0, ,0 00 00 0B Bt tu uh hI In np pu ut t
S
St ta an nd di in ng gP Pi il lo ot t, ,I In nt te er rm mi it tt te en nt tP Pi il lo ot t& &
V
Ve en nt tD Da am mp pe er r
S
SE EC CT TI IO ON N1 1: :B BO OI IL LE ER RI IN NS ST TA AL LL LA AT TI IO ON N
Introduction............................................................ 2
Step 1: Locating & Setting Boiler........................... 3
Step 2: Installing/Purging Water Piping................. 5
Step 3: Venting Boiler............................................ 8
Step 4: Installing/Testing Gas Piping..................... 10
Step 5: Wiring Boiler.............................................. 11
S
SE EC CT TI IO ON N2 2: :S ST TA AR RT T- -U UP P& &O OP PE ER RA AT TI IO ON N
Safety Controls...................................................... 17
Start-Up & Adjustments......................................... 17
S
SE EC CT TI IO ON N3 3: :M MA AI IN NT TE EN NA AN NC CE E
Water Treatment.................................................... 20
Freeze Protection................................................... 20
Before Each Heating Season................................ 20
How To Change Orifices........................................ 21
Troubleshooting..................................................... 21
Appendix A(French Vent Damper Translation)..... 22
Replacement Parts List.......................................... 23


2
A
AN NS SI I/ /A AS SM ME EC CO OD DE EC CO OM MP PL LI IA AN NC CE E: :Installation must
conform to requirements of authority having jurisdiction
or, in absence of such requirements, to National Fuel
Gas Code ANSI Z223.1-latest edition and to National
Electric Code NFPA-70-latest edition. Where required by
authority having jurisdiction, installation must also con-
form to Standard for Controls and Safety Devices for
Automatically Fired Boilers, ANSI/ASME CSD-1.
For Canada, the installation must be in accordance with
Standards CAN/CGA-B149 (.1 or .2) Installation Codes
for Gas Burning Appliances and Equipment and with
Standard C.S.A. C22.1 Canadian Electrical Code, Part 1
and Part 2, and/or local codes.
B
BO OI IL LE ER RS SH HI IP PM ME EN NT T: :Each boiler is shipped in a single
carton. There is a vent damper packed separately with
the boiler (for model R-300 vent damper is optional)
MMOODDEELLRRBBOOIILLEERRDDIIMMEENNSSIIOONNSS
D
*LOCATED IN FRONT ON MODELS R-180C
AND R-210C
PRESS. RELIEF VALVE
TEMP./PRESS. INDICATOR
HI-LIMIT AQUASTAT
7"
GAS VALVE
* 2" SUPPLY
BOILER
MODEL
R-300B
R-250C
R-210C
R-180C 28-1/4" 58-5/8" 7"21-7/8"
DIMENSIONS
ABCD
28-1/4"
32-1/4"
28-7/8"
61-7/8"
65-5/8"
7"
7"
8"
32-1/4"
29-3/8" 66-1/8"
25-1/8"
B
2" RETURN
9-1/2"
9-1/2"
12"
SPILL SWITCH
ROLLOUT
SWITCH
NOTE: SPILL & ROLLOUT
SWITCHES USED ON
R-180 THRU R-250.
VENT DAMPER
3 5/8"
C
36 3/4"
21 1/4"
A
25 1/2"
D
DA AN NG GE ER R: :I In nd di ic ca at te es sa an ni im mm mi in ne en nt tl ly yh ha az za ar rd do ou us ss si it tu ua a- -
t
ti io on nw wh hi ic ch h, ,i if fn no ot ta av vo oi id de ed d, ,w wi il ll lr re es su ul lt ti in nd de ea at th h, ,s se er ri i- -
o
ou us si in nj ju ur ry yo or rs su ub bs st ta an nt ti ia al lp pr ro op pe er rt ty yd da am ma ag ge e. .
W
WA AR RN NI IN NG G: :I In nd di ic ca at te es sa ai im mm mi in ne en nt tl ly yh ha az za ar rd do ou us ss si it tu ua a- -
t
ti io on nw wh hi ic ch h, ,i if fn no ot ta av vo oi id de ed d, ,c co ou ul ld dr re es su ul lt ti in nd de ea at th h, ,s se er ri i- -
o
ou us si in nj ju ur ry yo or rs su ub bs st ta an nt ti ia al lp pr ro op pe er rt ty yd da am ma ag ge e. .
C
CA AU UT TI IO ON N: :I In nd di ic ca at te es sa ai im mm mi in ne en nt tl ly yh ha az za ar rd do ou us ss si it tu ua a- -
t
ti io on nw wh hi ic ch h, ,i if fn no ot ta av vo oi id de ed d, ,m ma ay yr re es su ul lt ti in nm mi in no or ri in nj ju ur ry y
o
or rp pr ro op pe er rt ty yd da am ma ag ge e. .
N
NO OT TE E: :U Us se ed dt to on no ot ti if fy yo of fs sp pe ec ci ia al li in ns st tr ru uc ct ti io on ns so on n
i
in ns st ta al ll la at ti io on n, ,o op pe er ra at ti io on no or rm ma ai in nt te en na an nc ce ew wh hi ic ch ha ar re e
i
im mp po or rt ta an nt tt to oe eq qu ui ip pm me en nt tb bu ut tn no ot tr re el la at te ed dt to op pe er rs so on na al l
i
in nj ju ur ry yh ha az za ar rd ds s. .
The following terms are used throughout this manual to bring attention to the presence of potential hazards or to
important information concerning the product:
W
WA AR RN NI IN NG G: :I In ns st ta al ll le er rs sm mu us st tf fo ol ll lo ow wl lo oc ca al lr re eg gu ul la at ti io on ns s
w
wi it th hr re es sp pe ec ct tt to ot th he ei in ns st ta al ll la at ti io on no of fC CO Od de et te ec ct to or rs sa an nd d
f
fo ol ll lo ow wt th he em ma an nu uf fa ac ct tu ur re er r' 's ss st ta at te ed dm ma ai in nt te en na an nc ce e
s
sc ch he ed du ul le ef fo or rt th hi is sb bo oi il le er r! !
A
AT TT TE EN NT TI IO ON N: :O Ob bs se er rv ve er rl le es sr rè èg gl le em me en nt ts sr rè èg gi io on na al là àl l' 'e e- -
g
ga ar rd dd de es sd dé ét te ec ct te eu ur rs sd de em mo on no ox xy yd de ed de ec ca ar rb bo on ne ee et t
o
ob bs se er rv ve er re en nt tr re et ti ie en nd de em ma an nu uf fa ac ct tu ur ri ie er rp po ou ur rc ce et tt te e
c
ch ha au ud di iè èr re e! !

3
S
SE EC CT TI IO ON N1 1: :B BO OI IL LE ER RI IN NS ST TA AL LL LA AT TI IO ON N
S
ST TE EP P1 1: :L LO OC CA AT TI IN NG G& &S SE ET TT TI IN NG GT TH HE EB BO OI IL LE ER R
P
PR RO OC CE ED DU UR RE EA A: :C Ch he ec ck kt th ha at tp pr ro ov vi is si io on ns sf fo or rc co om mb bu us st ti io on na ai ir ra ar re ei in na ac cc co or rd da an nc ce ew wi it th hN Na at ti io on na al lF Fu ue el lG Ga as sC Co od de e
A
AN NS SI IZ Z2 22 23 3. .1 1- -l la at te es st te ed di it ti io on na an nd da al ll la ap pp pl li ic ca ab bl le el lo oc ca al lc co od de es s. .I In nC Ca an na ad da a, ,f fo ol ll lo ow wC CA AN N/ /C CG GA A
B
B1 14 49 9( (. .1 1o or r. .2 2) )i in ns st ta al ll la at ti io on nc co od de es s. .
I
If fb bo oi il le er ri is si in ns st ta al ll le ed di in na an nu un nc co on nf fi in ne ed ds sp pa ac ce e, ,adequate
air will be available via normal infiltration.
I
If fb bo oi il le er ri is si in ns st ta al ll le ed di in na ac co on nf fi in ne ed ds sp pa ac ce e(a space with
a volume of less than 50 cubic feet per 1000 Btu/hr of
gas input for all fuel burning equipment) or building con-
struction is unusually tight, adequate air for combustion
must be provided by two openings: one located about 6”
below the ceiling, the other about 6” above the floor.
When communicating directly with the outside, each
opening must have a minimum free area of one square
inch per 4000 Btu/hr of gas input. When ventilation air is
provided by openings in doors, etc. to adjoining spaces
having adequate infiltration, each opening must have a
minimum free area of one square inch per 1000 Btu/hr of
gas input.
N
NO OT TE E: :B Bo oi il le er re em mp pl lo oy ys sa at tm mo os sp ph he er ri ic cc co om mb bu us st ti io on n. .
C
Co om mb bu us st ti io on na ai ir rm mu us st tn no ot tb be ec co on nt ta am mi in na at te ed dw wi it th hh ha al lo o- -
g
ge en na at te ed dh hy yd dr ro oc ca ar rb bo on nv va ap po or rs s, ,a ae er ro os so ol lp pr ro op pe el ll la an nt ts so or r
f
fr re eo on n; ;o ot th he er rw wi is se e, ,h he ea at te ex xc ch ha an ng ge er rw wi il ll lb be es su ub bj je ec ct tt to o
c
co or rr ro os si io on n, ,r re ed du uc ci in ng gb bo oi il le er rl li if fe e. .
FRONT
ALCOVE
REAR
(6")
W/O CIRC.
24" WITH
CIRCULATOR
(RECOMMENDED
FOR SERVICING)
RECOMMEND
MORE FOR
ACCESS TO
VENT DAMPER
POSITION
INDICATOR
VENT
DAMPER
6" 6"
LEFT
6"
SIDE
VIEW
FRONT
VIEW
TOP
38"
RIGHT
6"
FIGURE 1.1
P
PR RO OC CE ED DU UR RE EB B: :C Ch he ec ck k
m
mi in ni im mu um mc cl le ea ar ra an nc ce es st to o
c
co om mb bu us st ti ib bl le es sa ar re ep pr ro op pe er r
a
as ss sh ho ow wn n. .L Lo oc ca al lr re eq qu ui ir re e- -
m
me en nt ts sm ma ay ys sp pe ec ci if fy y
g
gr re ea at te er rc cl le ea ar ra an nc ce es s& &m mu us st t
b
be ea ad d- -h he er re ed dt to o. .
B
Bo oi il le er rs sh ha al ll lb be ei in ns st ta al ll l- -e ed d
s
su uc ch ht th ha at tt th he eg ga as si ig gn ni it ti io on n
s
sy ys st te em mc co om mp po on ne en nt ts sa ar re e
p
pr ro ot te ec ct te ed df fr ro om mw wa at te er r
(
(d dr ri ip pp pi in ng g, ,s sp pr ra ay yi in ng g, ,r ra ai in n, ,
e
et tc c. .) )d du ur ri in ng ga ap pp pl li ia an nc ce e
o
op pe er ra at ti io on na an nd ds se er rv vi ic ce e( (c ci ir r- -
c
cu ul la at to or rr re ep pl la ac ce em me en nt t, ,c co on n- -
d
de en ns sa at te et tr ra ap p, ,c co on nt tr ro ol l
r
re ep pl la ac ce em me en nt t, ,e et tc c. .) ). .
N
NO OT TE E: :D Do on no ot tl lo oo os se en nt ti ie er ro od ds so on na ab bs so or rp pt ti io on nu un ni it t. .
T
Th he ey ya ac cc co om mm mo od da at te et th he er rm ma al le ex xp pa an ns si io on n. .L Lo os ss so of fb bo oi il l- -
e
er rs st tr ru uc ct tu ur ra al li in nt te eg gr ri it ty ya an nd dw wa at te er rl le ea ak ks s/ /d da am ma ag ge em ma ay y
r
re es su ul lt t. .
C
CA AU UT TI IO ON N: :L Lo oc ca at te eb bo oi il le er rs so oh ho or ri iz zo on nt ta al lc co on nn ne ec ct ti in ng g
f
fl lu ue ep pi ip pe ei is sa as ss sh ho or rt ta as sp po os ss si ib bl le e. .M Ma ax xi im mi iz ze eh he ei ig gh ht to of f
v
ve er rt ti ic ca al lf fl lu ue ec co on nn ne ec ct to or r. .
W
WA AR RN NI IN NG G: :A Ad de eq qu ua at te ef fr re es sh ha ai ir rm mu us st tb be ep pr ro ov vi id de ed df fo or r
c
co om mb bu us st ti io on n. .O Ot th he er rw wi is se e, ,i im mp pr ro op pe er rb bo oi il le er ro op pe er ra at ti io on n
a
an nd di in na ad de eq qu ua at te ev ve en nt ti in ng go of fd de ea ad dl ly yf fl lu ue eg ga as se es sm ma ay y
r
re es su ul lt t. .
W
WA AR RN NI IN NG G: :N Ne ev ve er ri in ns st ta al ll lb bo oi il le er ro on nc co om mb bu us st ti ib bl le ef fl lo oo or r- -
i
in ng go or rc ca ar rp pe et ti in ng ga as sh he ea at td da am ma ag ge ea an nd d/ /o or rf fi ir re em ma ay y
r
re es su ul lt t. .

4
BAFFLE
GRID
DOME
6"
4" HOLLOW CLAY TILE (TWO COURSES) OPENINGS THRU
BLOCKS IN TOP COURSE TO BE AT 90 ANGLE TO OPENINGS
THRU BOTTOM COURSE
0
22 GAUGE
SHEETMETAL
FLOOR
6" OVERHANG
OF BLOCK AND
SHEETMETAL
ALL AROUND
FIGURE 1.2A FIGURE 1.2B
P
PR RO OC CE ED DU UR RE ED D: :I In ns st ta al ll lj ja ac ck ke et t. .
1. Unpack jacket parts from carton and check that quan-
tity is correct: two side panels, one rear panel, one left
top panel and one right top panel (see Figure 1.3).
2. Stand left and right side panels in place and fasten to
front panel with screws provided. Fasten side panels to
rear panel in same manner.
LEFT TOP PANEL
FRONT PANEL
(BOILER MOUNTED)
RIGHT SIDE PANEL
RIGHT TOP PANEL
LEFT SIDE PANEL
REAR PANEL
REMOVE KNOCK-OUT
ASSEMBLY SCREW
FIGURE 1.3
3. Lock left and right halves of top panel together and fas-
ten to side panels with screws provided.
P
PR RO OC CE ED DU UR RE EC C: :C Ch he ec ck kc co om mp po on ne en nt tp po os si it ti io on ni in ng g. .
1. Remove all packing material from boiler.
2. Install boiler on non-combustible flooring only, unless
local codes permit use and fabrication of a recommend-
ed fireproof base (see Figure 1.2A).
3. Check that burners and controls are in the proper
position.
4. Check proper seating of baffle grid inside of dome
opening (see Figure 1.2B).

5
P
PR RO OC CE ED DU UR RE EB B: :I In ns st ta al ll ls su up pp pl ly ya an nd dr re et tu ur rn nw wa at te er r
p
pi ip pi in ng g. .F Fo or rM Mo od de el ls sR R- -1 18 80 0C C& &2 21 10 0C Cs su up pp pl ly yo ou ut tl le et ti is s
a
at tf fr ro on nt to of fb bo oi il le er ra an nd dr re el li ie ef fv va al lv ve ep pi ip pi in ng gi is sa at tr re ea ar ro of f
b
bo oi il le er r. .
SHUT-OFF
VALVE
VERTICAL EXPANSION TANK
ARRANGEMENT (PREFERRED)
DRAIN VALVE
SHUT-OFF
VALVE
PRESS.
RELIEF
VALVE AIR VENT
SHUT-OFF
VALVE
PRESSURE
REDUCING
(FILL) VALVE
SHUT-OFF
VALVES
CIRCULATOR
DRAIN VALVE
FIGURE 1.5
I
If fb bo oi il le er ri is si in ns st ta al ll le ed da ab bo ov ve el le ev ve el lo of fr ra ad di ia at ti io on n, ,a al lo ow w
w
wa at te er rc cu ut t- -o of ff fm mu us st tb be eu us se ed d. .
A
AL LL LE EX XT TE ER RN NA AL LP PI IP PI IN NG GM MU US ST TB BE ES SU UP PP PO OR RT TE ED DB BY Y
H
HA AN NG GE ER RS S, ,N NO OT TB BY YB BO OI IL LE ER RA AC CC CE ES SS SO OR RI IE ES S. .
HORIZONTAL EXPANSION
TANK ARRANGEMENT
DRAIN VALVE
S
ST TE EP P2 2: :I IN NS ST TA AL LL LI IN NG G& &P PU UR RG GI IN NG GW WA AT TE ER RP PI IP PI IN NG G
N
NO OT TE E: :B Bo oi il le er rm mu us st tn no ot tb be eu us se ed dw wi it th ho ou ut tf fo or rc ce ec ci ir rc cu u- -
l
la at ti io on n, ,a as so ov ve er rh he ea at ti in ng go or rf fa ai il lu ur re eo of fc ca as st ti ir ro on n
s
se ec ct ti io on ns sm ma ay yr re es su ul lt t. .
P
PR RO OC CE ED DU UR RE EA A: :I In ns st ta al ll lp pr re es ss su ur re er re el li ie ef fv va al lv ve ea an nd d
r
re el li ie ef fv va al lv ve ed di is sc ch ha ar rg ge ep pi ip pi in ng g. .F Fo or rM Mo od de el lR R- -3 30 00 0B B
s
su up pp pl ly yo ou ut tl le et ti is sa at tr re ea ar ra an nd dr re el li ie ef fv va al lv ve ep pi ip pi in ng gi is sa at t
f
fr ro on nt to of fb bo oi il le er r. .
R
Re el li ie ef fV Va al lv ve eD Di is sc ch ha ar rg ge eP Pi ip pi in ng g: :M Mu us st tt te er rm mi in na at te e6 6” ”
a
ab bo ov ve ef fl lo oo or r& &b be es sa am me es si iz ze eo or rl la ar rg ge er rt th ha an nv va al lv ve eo ou ut tl le et t. .
PRESS. RELIEF VALVE
AIR
VENT
RELIEF VALVE DISCHARGE
PIPING
FIGURE 1.4
W
WA AR RN NI IN NG G: :N No ov va al lv ve eo of fa an ny yt ty yp pe em ma ay yb be ei in ns st ta al ll le ed d
b
be et tw we ee en nb bo oi il le er r& &r re el li ie ef fv va al lv ve et to op pr re ev ve en nt ta ac cc ci id de en nt ta al l
e
ex xp pl lo os si io on nf fr ro om mo ov ve er r- -p pr re es ss su ur re e. .
C
CA AU UT TI IO ON N: :P Pi ip pi in ng gm mu us st tb be ei in ns st ta al ll le ed df fr ro om mr re el li ie ef fv va al lv ve e
d
di is sc ch ha ar rg ge es so ot th he er re ew wi il ll lb be en no od da an ng ge er ro of fs sc ca al ld di in ng gp pe er r- -
s
so on nn ne el l. .

6
SUPPLY RETURN
50%
120°F
100%
140°F
100%
160°F
50%
160°F
50%
160°F
SYSTEM
BYPASS
FIGURE 1.6
SUPPLY RETURN
50%
120°F
100%
140°F
100%
160°F
50%
160°F
50%
160°F
PUMP AWAY
BYPASS
SUPPLY RETURN
100%
120°F
200%
140°F
200%
160°F
100%
160°F
100%
160°F
PUMPED
BYPASS
FIGURE 1.7
FIGURE 1.8
C
CA AU UT TI IO ON N: :T To op pr re ev ve en nt td da am ma ag ge ed du ue et to oe ex xc ce es ss si iv ve ec co on n- -
d
de en ns sa at ti io on n, ,o on ne eo of ft th he ef fo ol ll lo ow wi in ng gp pi ip pi in ng go op pt ti io on ns ss sh ho ou ul ld d
b
be eu us se ed d. .
S
SY YS ST TE EM MB BY YP PA AS SS S
For systems using a circulator on the return as either a
single zone, or multiple zones with zone valves, install a
system bypass line between the supply and return on the
suction side of the circulator (see Figure 1.6). Install a
metering valve in this bypass line to regulate the amount
of flow that will be diverted to the return. A plug valve
offers the best control for this application. Although other
valves may be less expensive, a plug valve will be easier
to set accurately.
In the absence of a flow indicator, set the metering valve
using temperature as a guide. The accompanying dia-
gram suggests one scenario. This addition requires only
two tees, a plug valve, and a small amount of pipe and
offers the simplest approach to reliably control condensa-
tion. For this system and those that follow, be aware that
you are using a percentage of the pump capacity to
blend, but the friction loss for the entire pump flow has
been reduced. In most cases, the standard pump pack-
aged with the boiler has enough capacity to feed the
baseboard distribution system and the bypass line.
P
PU UM MP PA AW WA AY YB BY YP PA AS SS S
For systems that use a single circulator to pump away
from the boiler, the bypass should be installed on the dis-
charge side of the circulator (see Figure 1.7). Full tem-
perature water supplies the baseboard distribution sys-
tem as before. Half of the circulator’s volume moves
through the bypass, blending and heating the cooler
return water. Again, the cost of installing the bypass is
small and setting it by temperature can be accomplished
with a contact thermometer.
P
PU UM MP PE ED DB BL LE EN ND D
An additional circulator can also be used to provide a
return water temperature blend. This method works well
with systems with multiple zones with circulators (see
Figure 1.8). The dedicated bypass circulator provides a
strong blending flow without diminishing the flow avail-
able to any heating zone. Any residentially sized circula-
tor is adequate for this purpose.
Each of these bypass solutions also has the added ben-
efit of increasing circulation in the boiler which will maxi-
mize tankless coil output and increase the accuracy of
temperature sensing controls.

7
P
PR RO OC CE ED DU UR RE ED D: :C Co om mp pl le et te el ly yf fi il ll l& &p pu ur rg ge e
h
he ea at ti in ng gs sy ys st te em m. .M Ma ak ke es su ur re et th ha at ta al ll lh he ea at t- -
i
in ng gs sy ys st te em mm ma an nu ua al la ai ir rv ve en nt ts sa ar re ec cl lo os se ed d. .
1. Check flow direction arrows on hydronic
components are facing in proper direction.
2. Attach hose to drain valve “B” and close
valve “A”. Open valves “C”, “D”, “E” and “F”
and drain valve “B”. Fill system with water
until water runs out of the hose in a steady
stream (no visible air bubbles).
3. Close valves “C” and “D”. Open valve “A”.
When water runs out of the hose in a steady
stream (no visible air bubbles), close drain
valve “B”.
4. Open valves “C” and “D”.
VALVE “C”
VALVE “B”
VALVE “A”
VALVE “D”
VALVE “E”
VALVE “F”
FIGURE 1.11
P
PR RO OC CE ED DU UR RE EC C: :F Fo or rc co om mb bi in na at ti io on nh he ea at ti in ng ga an nd dc co oo ol l- -
i
in ng gi in ns st ta al ll la at ti io on ns so on nl ly y. .
If a hot water boiler is installed in connection with a water
chiller, the chilled water must be piped in parallel with the
boiler, using appropriate valves to prevent the chilled
medium from entering the boiler (see Figure 1.10). When
boilers are connected to heating coils located in air han-
dling units where they may be exposed to refrigerated air
circulation, such boiler piping system shall be equipped
with flow-control valves or other means to prevent gravi-
ty circulation of the boiler water during the cooling cycle.
NOTE:VALVES "H" OPENED ON HEATING WITH "C" VALVES
CLOSED REVERSE PROCEDURE ON COOLING.
EXP. TANK
VENT
ROOM
UNIT
DRAIN
CHILLER
BOILER
H
C
PUMP
RELIEF
VALVE
FILL
VALVE
DRAIN
C
H
BOILER
FIGURE 1.10
FFOORRWWAATTEERRTTRREEAATTMMEENNTT&&FFRREEEEZZEEPPRROOTTEECCTTIIOONNRREEQQUUIIRREEMMEENNTTSS,,
SSEEEE““SSEECCTTIIOONN33::MMAAIINNTTEENNAANNCCEE””IINNTTHHIISSMMAANNUUAALL
reverse
aquastat
N.O.
T
Tt'stat
GV
115 volts
24 volts
circulator
operating
aquastat
N.C.
REVERSE
AQUASTAT
SET AT 120°F
FIGURE 1.9
R
RE EV VE ER RS SE EA AC CT TI IN NG GA AQ QU UA AS ST TA AT TS S
An alternative for existing systems experiencing conden-
sation that does not require re-piping the boiler utilizes a
reverse acting aquastat, one that makes on temperature
rise. This approach works best in single zone systems.
Wired in series with the circulator, this control holds the cir-
culator off until the boiler reaches an acceptable tempera-
ture and then starts system circulation (see Figure 1.9).
The most commonly available reverse acting aquastat is
a Honeywell L4006B. The aquastat should be mounted in
an immersion well directly installed in the boiler. The use
of heat conductive grease (Honeywell part # 972545) in
the immersion well is strongly recommended for fast and
accurate temperature response. Set this adjustable
aquastat to make at no less than 130° F. While this
method can cause the circulator to cycle more frequently,
setting the aquastat’s differential to the maximum (25-
30°F) will minimize short cycling.

8
S
ST TE EP P3 3: :V VE EN NT TI IN NG GT TH HE EB BO OI IL LE ER R
N
NO OT TE E: :F Fo or rb bo oi il le er rs se eq qu ui ip pp pe ed dw wi it th hi in nt te er rm mi it tt te en nt tp pi il lo ot t
i
in ns st ta al ll lp pl lu ug gs su up pp pl li ie ed di in nd da am mp pe er rp pa ac ck ka ag ge ei in nt to od da am mp pe er r
v
va an ne eh ho ol le e. .F Fo or rs st ta an nd di in ng gp pi il lo ot tb bo oi il le er rs sd di is sc ca ar rd dp pl lu ug g. .
A
Ad dd di it ti io on na al lv ve en nt ti in ng ga an nd dc ch hi im mn ne ey yr re eq qu ui ir re em me en nt ts sa ar re e
p
pr ro ov vi id de ed do on np pa ag ge e9 9. .
P
PR RO OC CE ED DU UR RE EB B: :I In ns st ta al ll lv ve en nt td da am mp pe er r. .( (F Fo or rF Fr re en nc ch hv ve er rs si io on n, ,s se ee eA Ap pp pe en nd di ix xA Aa at tr re ea ar ro of fm ma an nu ua al l. .) )
FLOW DIRECTION
ARROW POINTS UP
MOUNT
VENT DAMPER
OVER
DRAFTHOOD
MAKE SURE
MOTOR IS
LOCATED
ON LEFT SIDE
1
1. .M Mo ou un nt td da am mp pe er ro on nt to op po of fd dr ra af ft th ho oo od d. .
FIGURE 1.13
ATTACH LOWER
PORTION OF
VENT DAMPER
TO DRAFTHOOD
WITH 1/2" OR
SHORTER SCREWS
OR POP RIVETS
2
2. .S Se ec cu ur re ed da am mp pe er rt to od dr ra af ft th ho oo od d. .
FIGURE 1.14
OPEN
OPEN
1
REMOVE
SHIPPING
CLIP
2
OBSERVE
DAMPER
ROTATES
TO OPEN
POSITION
WITHOUT
OBSTRUCTION
3
3. .C Ch he ec ck kd da am mp pe er ro op pe er ra at ti io on n. .
FIGURE 1.15
PLUG INTO MOLEX
RECEPTACLE ON FRONT
OF BOILER
PLUG INTO MOLEX
RECEPTACLE INSIDE
DAMPER MOTOR
VENT
DAMPER
WIRE
HARNESS
4
4. .C Co on nn ne ec ct tw wi ir re eh ha ar rn ne es ss s. .
FIGURE 1.16
P
PR RO OC CE ED DU UR RE EA A: :M Mo ou un nt td dr ra af ft th ho oo od da an nd ds sp pi il ll ls sw wi it tc ch ho on n
b
bo oi il le er r. .
1. Install draft hood on boiler. If draft hood shroud has a
hole near the relief opening, mount draft hood so hole
faces to the front of the boiler.
2. R-C boilers are equipped with factory-mounted spill
switch harness/mounting bracket as-sembly; spill switch
is provided in bag on boiler front.
3. Install mounting bracket on outside surface of draft
hood shroud with the screws provided (HARNESS MUST
BE ON OUTSIDE OF SHROUD). Install spill switch in
hole in shroud (on outside surface) with the screws pro-
vided.
4. Plug wiring leads from harness/bracket assembly onto
flat terminals on spill switch.
N
NO OT TE E: :B Bo oi il le er rw wi il ll ln no ot to op pe er ra at te eu un nl le es ss sw wi ir ri in ng gl le ea ad ds st to o
s
sp pi il ll ls sw wi it tc ch ha ar re ec co on nn ne ec ct te ed d. .
INSTALL
SWITCH
IN OPENING
ONDRAFTHOOD
CONNECT
WIRE
LEADS
INSTALL
MOUNTING
BRACKET
ONDRAFTHOOD
FIGURE 1.8
D
DA AN NG GE ER R: :D Dr ra af ft th ho oo od da an nd dv ve en nt to ou ut tl le et tm mu us st tn no ot tb be e
a
al lt te er re ed d, ,a as sp pr ro op pe er ro op pe er ra at ti io on nw wo ou ul ld db be ej je eo op pa ar rd di iz ze ed d; ;
f
fl la am me er ro ol ll lo ou ut t, ,f fi ir re eo or rc ca ar rb bo on nm mo on no ox xi id de ep po oi is so on ni in ng g
w
wi il ll lr re es su ul lt t. .
D
DA AN NG GE ER R: :O On nl ly yt th he eb bo oi il le er rm ma ay yb be es se er rv ve ed db by yt th he ev ve en nt td da am mp pe er r. .D Do on no ot tu us se ei it tt to ov ve en nt ta an na ad dd di it ti io on na al la ap pp pl li ia an nc ce e; ;
t
th hi is sw wi il ll lc ca au us se ef fi ir re eo or rc ca ar rb bo on nm mo on no ox xi id de ep po oi is so on ni in ng g. .

9
A
AD DD DI IT TI IO ON NA AL LV VE EN NT TI IN NG GR RE EQ QU UI IR RE EM ME EN NT TS S: :When connecting
to gas vents or chimneys, vent installations shall be in accor-
dance with Part 7, Venting of Equipment, of the National Fuel
Gas Code, ANSI Z223.1-latest edition, or applicable provisions
of the local building codes.
Vent connectors serving appliances vented by natural draft
shall not be connected into any portion of mechanical draft sys-
tems operating under positive pressure.
When two or more appliances vent into a common flue, the
area of the common flue should be at least equal to the area of
the largest flue plus 50% of the areas of the additional flue or
vent connectors.
When an existing boiler is removed from a common venting
system, common venting system is likely to be too large for
proper venting of appliances remaining connected to it. At time
of removal of existing boiler, following steps shall be followed
with each appliance remaining connected to the common vent-
ing system placed in operation, while other appliances remain-
ing connected to common venting system are not in operation:
1. Seal all unused openings in common vent-
ing system.
2. Visually inspect the venting system for prop-
er size and horizontal pitch and determine
there is no blockage or restriction, leakage,
corrosion and other deficiencies which could
cause an unsafe condition.
3. Insofar as is practical, close all building
doors and windows and all doors between the
space in which the appliances remaining con-
nected to the common venting system are
located and other spaces of the building. Turn
on clothes dryers and any appliance not con-
nected to the common venting system. Turn on
any exhaust fans, such as range hoods and
bathroom exhausts, so they will operate at
maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers.
4. Place in operation the appliance being in-spect-
ed. Follow the lighting instructions. Ad-just ther-
mostat so appliance will operate continuously.
5. Test for spillage at draft hood relief opening
after 5 minutes of main burner operation. Use
the flame of a match or candle, or smoke from
cigarette, cigar or pipe.
6. After it has been determined that each ap-pli-
ance remaining connected to common venting
system properly vents when tested as outlined
above, return doors, windows, exhaust fans,
fireplace dampers and any other gas-burning
appliance to previous conditions of use.
7. Any improper operation of the common vent-
ing system should be corrected so installation
conforms with the National Fuel Gas Code,
ANSI Z223.1-latest edition. When resizing any
portion of the common venting system, the
common venting system should be resized to
approach the minimum size as determined using the appropri-
ate tables in Appendix G in the National Fuel Gas Code, ANSI
Z223.1-latest edition. For Canada, the provisions of CAN/CGA
B149(.1 or .2) shall apply.
A
AD DD DI IT TI IO ON NA AL LC CH HI IM MN NE EY YR RE EQ QU UI IR RE EM ME EN NT TS S: :Chimney condi-
tion is of paramount importance for a safe and efficient boiler
installation. All installations must include a chimney inspection
by a qualified individual or agency. Chimney construction mate-
rials must be compatible with the fuel being used.
Particular attention should be paid on all oil-to-gas conversions.
Soot may have accumulated in chimney and/or degraded chim-
ney liner. Most utilities require complete chimney cleaning.
Others may require installation of new liner, spill switches or
other chimney upgrades. Check with local utility for required
safety precautions.
MAXIMUM
6-FT
APART
PITCH 1/4"
PER FOOT
SECURE
FLUE PIPE
TO VENT
DAMPER
USE VENT SUPPORT(S) AS REQUIRED TO PREVENT SAGGING
INSTALL
FLUSH
WITH
INSIDE
CHIMNEY
LINER
SEAL
WITH
FURNACE
CEMENT
SINGLE WALL
OR TYPE B
FLUE PIPE
R-180 = 7"
R-210 = 7"
R-250 = 7"
R-300 = 8"
P
PR RO OC CE ED DU UR RE EC C: :I In ns st ta al ll lf fl lu ue ep pi ip pe eb be et tw we ee en nv ve en nt td da am mp pe er ra an nd d
c
ch hi im mn ne ey y( (6 6” ”m mi in ni im mu um mc cl le ea ar ra an nc ce er re eq qu ui ir re ed d
b
be et tw we ee en nf fl lu ue ep pi ip pe ea an nd dc co om mb bu us st ti ib bl le es s) ). .
FIGURE 1.17
D
DA AN NG GE ER R: :A Ac ch hi im mn ne ey yw wh hi ic ch hd do oe es sn no ot tm me ee et tm mo od de er rn n
s
sa af fe et ty ys st ta an nd da ar rd ds sw wi il ll lr re es su ul lt ti in na af fi ir re eo or rd de ea ad dl ly yc ca ar rb bo on n
m
mo on no ox xi id de ep po oi is so on ni in ng go of ft th he eb bu ui il ld di in ng gr re es si id de en nt ts s. .

10
P
PR RO OC CE ED DU UR RE EA A: :S Se el le ec ct tg ga as sp pi ip pe es si iz ze ew wh hi ic ch hw wi il ll lr re es su ul lt ti in na ap pr re es ss su ur re ed dr ro op po of fl le es ss st th ha an n0 0. .3 3” ”W W. .C C. .f fo or rn na at tu ur ra al l
g
ga as so or r0 0. .5 5” ”W W. .C C. .f fo or rp pr ro op pa an ne e, ,f fo ol ll lo ow wi in ng ge ex xa am mp pl le eb be el lo ow w. .
E
Ex xa am mp pl le e: :Boiler Model R-180C is to be installed. Distance from existing gas meter to installation site is 20 ft. What
pipe size must be used? Local utility indicates heating value of natural gas being supplied is 1020 Btu per cu.ft.
Determine cubic feet of gas per hour for above boiler model:
1
18 80 0, ,0 00 00 0B Bt tu up pe er rh ho ou ur r= 176.4 cu.ft. per hour
1020 Btu per cu.ft.
1. Find 20 ft. in upper portion of the table for natural gas under “Length of Pipe, Feet” heading.
2. Moving down the column, match required capacity. Higher capacity acceptable. In our case it is 190 cu.ft.
3. Move to left-hand column “Nominal Iron Pipe Size, Inches”; read required pipe size. In our case it is 3/4”.
FIGURE 1.18
S
ST TE EP P4 4: :I IN NS ST TA AL LL LI IN NG G& &T TE ES ST TI IN NG GG GA AS SP PI IP PI IN NG G
Maximum Capacity of Pipe in Cubic Feet of Natural Gas per Hour for Gas Pressures of
0.5 Psig or Less and a Pressure Drop of 0.3 Inch Water Column
(Based on a 0.60 Specific Gravity Gas)
Nominal
Iron Pipe
Size,
Inches
Internal
Diameter,
Inches
Length of Pipe, Feet
10
32
72
132
278
520
1,050
1,600
3,050
4,800
8,500
17,500
20
22
49
92
190
350
730
1,100
2,100
3,300
5,900
12,000
30
18
40
73
152
285
590
890
1,650
2,700
4,700
9,700
40
15
34
63
130
245
500
760
1,450
2,300
4,100
8,300
50
14
30
56
115
215
440
670
1,270
2,000
3,600
7,400
60
12
27
50
105
195
400
600
1,150
1,850
3,250
6,800
70
11
25
46
96
180
370
560
1,500
1,700
3,000
6,200
80
11
23
43
90
170
350
530
990
1,600
2,800
5,800
90
10
22
40
84
160
320
490
930
1,500
2,600
5,400
100
9
21
38
79
150
305
460
870
1,400
2,500
5,100
125
8
18
34
72
130
275
410
780
1,250
2,200
4,500
150
8
17
31
64
120
250
380
710
1,130
2,000
4,100
175
7
15
28
59
110
225
350
650
1,050
1,850
3,800
200
6
14
26
55
100
210
320
610
980
1,700
3,500
1/4"
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
.326
.493
.622
.824
1.049
1.380
1.610
2.067
2.469
3.026
4.026
Maximum Capacity of Pipe in Thousands of Btu per Hour of Undiluted Liquefied
Petroleum Gases (at 11 Inches Water Column Inlet Pressure)
(Based on a Pressure Drop of 0.5 Inch Water Column)
Nominal
Iron Pipe
Size,
Inches
Length of Pipe, Feet
10
275
567
1071
2205
3307
6221
20
189
393
732
1496
2299
4331
30
152
315
590
1212
1858
3465
40
129
267
504
1039
1559
2992
50
114
237
448
937
1417
2646
60
103
217
409
834
1275
2394
70
96
196
378
771
1180
2205
80
89
185
346
724
1086
2047
90
83
173
322
677
1023
1921
100
78
162
307
630
967
1811
125
69
146
275
567
866
1606
150
63
132
252
511
787
1498
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"

11
D
DA AN NG GE ER R: :B Be ef fo or re ep pl la ac ci in ng gg ga as sp pi ip pi in ng gi in nt to os se er rv vi ic ce e, ,c ca ar re ef fu ul ll ly yt te es st ti it tt to oa as ss su ur re ee ev ve er ry yj jo oi in nt ti is sg ga as st ti ig gh ht t. .
B
Bu ub bb bl le et te es st ta al ll lj jo oi in nt ts sw wi it th ha as so oa ap ps so ol lu ut ti io on n. .N NE EV VE ER RT TE ES ST TW WI IT TH HA AN NO OP PE EN NF FL LA AM ME EA AS SF FI IR RE EO OR RE EX XP PL LO O- -
S
SI IO ON NM MA AY YR RE ES SU UL LT T.
For any pressure testing in excess of 1/2 psi, the boiler
and its individual shutoff valve must be isolated from the
piping system by disconnecting them and capping the
outlet(s). For any pressure testing equal to or less than
1/2 psi, the boiler must be isolated from the piping sys-
tem by closing its manual shutoff valve.
Minimum pressure required at the gas valve inlet is 5”
W.C. for natural gas and 11” W.C. for propane. Maximum
pressure allowable at the gas valve inlet is 12” W.C. If the
gas pressure is above this limit, a pressure regulator
must be installed. If the gas pressure is below these lim-
its, contact the local utility.
P
PR RO OC CE ED DU UR RE EC C: :T Te es st tg ga as sp pi ip pi in ng g. .
WWHHEENNTTEESSTTIINNGGIISSCCOOMMPPLLEETTEEDD,,CCLLOOSSEEMMAAIINNGGAASSSSHHUUTT--OOFFFFVVAALLVVEE
&&SSEETTBBOOIILLEERRCCOOMMBBIINNAATTIIOONNGGAASSVVAALLVVEEIINN““OOFFFF””PPOOSSIITTIIOONN..
P
PR RO OC CE ED DU UR RE EB B: :C Co on nn ne ec ct tg ga as sp pi ip pi in ng gf fr ro om mm me et te er rt to o
b
bo oi il le er rf fo ol ll lo ow wi in ng gg go oo od dp pi ip pi in ng gp pr ra ac ct ti ic ce es s. .P Pi ip pe ej jo oi in nt t
c
co om mp po ou un nd dm mu us st tb be ec co om mp pa at ti ib bl le ew wi it th ht th he ef fu ue el l( (N NG Go or r
L
LP P) )b be ei in ng gu us se ed d. .C Ch he ec ck kl lo oc ca al lc co od de es sa an nd du ut ti il li it ti ie es sf fo or r
a
an ny yr re eq qu ui ir re em me en nt ts s. .
A
AL LL LP PI IP PI IN NG GM MU US ST TB BE ES SU UP PP PO OR RT TE ED DB BY YH HA AN NG GE ER RS S, ,
N
NO OT TB BY YB BO OI IL LE ER RO OR RA AC CC CE ES SS SO OR RI IE ES S. .
RISER TO OTHER
APPLIANCES
BEAM
PIPE CLAMP
GAS
METER
GAS
VALVE
UNION
SEDIMENT
TRAP
MANUAL MAIN
SHUT OFF
VALVE
FIGURE 1.19
S
ST TE EP P5 5: :W WI IR RI IN NG GT TH HE EB BO OI IL LE ER R
All electrical wiring must be in accordance with require-
ments of authority having jurisdiction or, in absence of
such requirements, to National Electric Code NFPA-70-
latest edition. If external source is utilized, boiler must be
electrically grounded in accordance with the require-
ments of authority having jurisdiction or, in absence of
such requirements, with National Electric Code NFPA-
70-latest edition. UL listed power limited circuit cable is
almost universally approved for safety controls on heat-
ing equipment, either internally or externally, without pro-
tection of conduits or raceway.
For Canada, all electrical connections are to be made in
accordance with Standard C.S.A. C22.1 Canadian
Electrical Code, Part 1 and Part 2 and/or local codes.
N
NO OT TE E: :I If fa an ny yo or ri ig gi in na al lw wi ir re es su up pp pl li ie ed dw wi it th ht th he eb bo oi il le er r
m
mu us st tb be er re ep pl la ac ce ed d, ,u us se es si im mi il la ar rw wi ir re eo of f1 10 05 5C Cr ra at ti in ng g. .
O
Ot th he er rw wi is se e, ,i in ns su ul la at ti io on nm ma ay ym me el lt to or rd de eg gr ra ad de e, ,e ex xp po os si in ng g
b
ba ar re ew wi ir re e. .
N
NO OT TE E: :B Bo oi il le er rt tr ra an ns sf fo or rm me er rm mu us st tn no ot tb be eu us se ed dt to op po ow we er r
e
ex xt te er rn na al la ac cc ce es ss so or ri ie es s( (i i. .e e. ., ,z zo on ne ev va al lv ve es s, ,r re el la ay ys s, ,e et tc c. .) ). .
O
Ot th he er rw wi is se e, ,b bo oi il le er rt tr ra an ns sf fo or rm me er rw wi il ll lb be eo ov ve er rl lo oa ad de ed da an nd d
w
wi il ll lb bu ur rn no ou ut t. .
Aseparate 115V (60Hz) power supply is recommended
for the boiler. Use standard 15-amp fuse and 14-gauge
wire from power supply to boiler. Follow the wiring dia-
gram for your particular installation as shown in Figures
1.20 through 1.28.
W
WA AR RN NI IN NG G: :T Tu ur rn no of ff fe el le ec ct tr ri ic cp po ow we er rs su up pp pl ly yb be ef fo or re e
s
se er rv vi ic ci in ng g. .C Co on nt ta ac ct tw wi it th hl li iv ve ee el le ec ct tr ri ic cc co om mp po on ne en nt ts sc ca an n
c
ca au us se es sh ho oc ck ko or rd de ea at th h. .

12
F
FI IG GU UR RE E1 1. .2 20 0: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH H
I
IN NT TE ER RM MI IT TT TE EN NT TP PI IL LO OT T, ,V VE EN NT TD DA AM MP PE ER R& &L L8 81 14 48 8E E
A
AQ QU UA AS ST TA AT TR RE EL LA AY Y

13
F
FI IG GU UR RE E1 1. .2 21 1: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH H
I
IN NT TE ER RM MI IT TT TE EN NT TP PI IL LO OT T& &V VE EN NT TD DA AM MP PE ER R& &
H
HI IG GH HL LI IM MI IT TA AQ QU UA AS ST TA AT T
F
FI IG GU UR RE E1 1: :2 22 2: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH HI II ID D, ,
V
VE EN NT TD DA AM MP PE ER R& &L L4 40 08 81 1B BD DU UA AL LA AQ QU UA AS ST TA AT T

14
F
FI IG GU UR RE E1 1. .2 23 3: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH H
S
ST TA AN ND DI IN NG GP PI IL LO OT T
F
FI IG GU UR RE E1 1. .2 24 4: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH H
S
ST TA AN ND DI IN NG GP PI IL LO OT T& &L L8 81 14 48 8E EA AQ QU UA AS ST TA AT TR RE EL LA AY Y
CAUTION
THIS BOILER IS EQUIPPED WITH 24 VOLT
CONTROLS. DO NOT CONNECT GAS VALVE
TO LINE VOLTAGE.
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE BOILER MUST BE REPLACED,
IT MUST BE REPLACED WITH TYPE MTW(105¡C)
WIRE OR ITS EQUIVALENT.
115VAC,60H Z
HN
115/24V
42-3902 Rev. 6
FIELD WIRING
FACTORY WIRING
TRANSFORMER
HI-LIMIT
AQUASTAT
THERMOSTAT
24VOLT
GAS VALVE
BLK
TH
TR
115V AC
115V, 60HZ PRI.
24V, 20VA SEC.
HI-LIMIT T’STAT
THTR
BLK
CAUTION
THIS BOILER IS EQUIPPED WITH 24 VOLT
CONTROLS. DO NOT CONNECT GAS VALVE
TO LINE VOLTAGE.
42-5538 Rev. 4
115V ACL1L2
T’STAT
115/24V
1K1 C1 C2
CIRC.
MOTOR
JUMPER 1K
TTV
ZW
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE BOILER MUST BE REPLACED,
IT MUST BE REPLACED WITH TYPE MTW(105¡C)
WIRE OR ITS EQUIVALENT.
FIELD WIRING
FACTORY WIRING
GAS VALVE
BLK
TH
TR
BLK
115V
CIRC.
AQUASTAT
RELAY
TZTV
B1B2
C1C2
L1L2
THERMOSTAT
TH
TR
1K2 BRB2
B1

15
F
FI IG GU UR RE E1 1. .2 25 5: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED D
W
WI IT TH HI IN NT TE ER RM MI IT TT TE EN NT TP PI IL LO OT T
F
FI IG GU UR RE E1 1. .2 26 6: :W WI IR RI IN NG GD DI IA AG GR RA AM M& &O OP PE ER RA AT TI IO ON N
S
SE EQ QU UE EN NC CE EF FO OR RB BO OI IL LE ER RS SE EQ QU UI IP PP PE ED DW WI IT TH H
I
IN NT TE ER RM MI IT TT TE EN NT TP PI IL LO OT T& &L L8 81 14 48 8E EA AQ QU UA AS ST TA AT TR RE EL LA AY Y

16
T2: 24V TRANSF.
TH1: 24V T’STAT.
TH2: 24V T’STAT.
TH3: 24V T’STAT.
ZV1: ZONE VALVE
ZV2: ZONE VALVE
ZV3: ZONE VALVE
R1: AQUASTAT RELAY - L8148E
GV: GAS VALVE
TH1
TH2
N
H115V
TH3
ZV1
ZV2
ZV3
T2
YEL RED
YEL RED
R1
TV T
2
W
B1B2
TH
TR
C1C2
L1 L2
GV
N
H
115V
TO CIRC.
RED
RED
RED
RED
YEL
YEL
YEL
YEL
F
FI IG GU UR RE E1 1. .2 27 7: :W WI IR RI IN NG GD DI IA AG GR RA AM MF FO OR RZ ZO ON NI IN NG GW WI IT TH HZ ZO ON NE EV VA AL LV VE ES S
C2
C1
231 4
T
T
23
14
X
X
T
X
T
X
TH1 TH2
ZR1 ZR2
N
H
115V
TH TR
GV
T1
TO
ADDITIONAL
ZONES
H1
C1: ZONE CIRCULATOR
TH1: ZONE T’STAT
C2: ZONE CIRCULATOR
TH2: ZONE T’STAT
ZR1: ZONE RELAY (RA832A
OR EQUIVALENT)
ZR2: ZONE RELAY (RA832A
OR EQUIVALENT)
H1: HI-LIMIT AQUASTAT
GV: GAS VALVE
T1: 24V TRANSFORMER
T2,T3: TRANSF. (IN RELAYS)
1R-1, 1R-2: ZR1 CONTACTS
2R-1, 2R-2: ZR2 CONTACTS
FACTORY WIRING
FIELD WIRING
T1
115V
1R-2 2R-2
H1
BOILER CIRCUIT
1R-1
T2
2R-1
T3 TH2 TH1
ZR1 ZR2
CIRC.
1
CIRC.
2
115V
BLACK
WHITE
EXTERNAL CIRCUIT
GAS VALVE
COIL
F
FI IG GU UR RE E1 1. .2 28 8: :W WI IR RI IN NG GD DI IA AG GR RA AM MF FO OR RZ ZO ON NI IN NG GW WI IT TH HC CI IR RC CU UL LA AT TO OR RS S

17
S
SE EC CT TI IO ON N2 2: :S ST TA AR RT T- -U UP P& &O OP PE ER RA AT TI IO ON N
SSAAFFEETTYYCCOONNTTRROOLLSS
Spill switch (see
Figure 2.1) detects the
escape of combustion
products through the
draft hood relief open-
ing and interrupts the
power to the gas valve
preventing unsafe boil-
er operation. Escape
of flue products could
be caused by a
blocked or collapsed
chimney or by inade-
quate chimney draft.
T
Th hi is si is sa am ma an nu ua al lr re e- -
s
se et t- -t ty yp pe ed de ev vi ic ce ea an nd d
c
ca an nb be er re ea ac ct ti iv va at te ed db by y
d
de ep pr re es ss si in ng gt th he es sp pi il ll l
s
sw wi it tc ch hr re es se et tb bu ut tt to on n. .
Flame rollout switch
(see Figure 2.1) pre-
vents flame rollout from the boiler combustion chamber,
caused by blocked boiler flue passageways, by interrupt-
ing power to the gas valve to prevent unsafe boiler oper-
ation. T
Th hi is si is sa as si in ng gl le eu us se ed de ev vi ic ce ea an nd dm mu us st tb be er re e- -
p
pl la ac ce ed di if fi it ti is st tr ri ip pp pe ed d. .Flue passages must be inspect-
ed by a qualified installer if problem occurs, prior to
switch replacement.
SSTTAARRTT--UUPP&&AADDJJUUSSTTMMEENNTTSS
Safe lighting and other performance criteria were met
with the gas manifold and control assembly provided on
the boiler when the boiler underwent tests specified in
ANSI Z21.13-1991.
1. Bleed all heating system air vents, starting on lowest
SPILL SWITCH
ROLLOUT
SWITCH
floor. Open vents one at a time until water squirts out.
Close vent and repeat procedure with remaining vents.
2. Make sure boiler combination gas valve is in OFF
position. Then, open main gas shutoff valve, allowing gas
to flow to boiler.
3.Set thermostat heat anticipator at .8 amp when therm-
ostat is controlling boiler directly. When zone controlled,
set heat anticipator to amp draw of zone valve or circu-
lator pump relay.
4. Set thermostat to call for heat and turn on electrical
power to boiler.
Observe that vent
damper position indi-
cator has rotated to
open position (see
Figure 2.2). D
Da am mp pe er r
m
mu us st tb be ei in no op pe en n
p
po os si it ti io on nw wh he en nb bo oi il l- -
e
er rm ma ai in nb bu ur rn ne er ri is s
o
op pe er ra at ti in ng g. .I In nc ca as se e
o
of fa ad da am mp pe er rm ma al l- -
f
fu un nc ct ti io on n, ,t th he e
d
da am mp pe er rb bl la ad de em ma ay y
b
be em ma an nu ua al ll ly yp pl la ac ce ed d
i
in nt th he ef fu ul ll lo op pe en n
p
po os si it ti io on nt to op pe er rm mi it tb bu ur rn ne er ro op pe er ra at ti io on n. .T To oa ac cc co om mp pl li is sh h
t
th hi is s, ,f fi ir rs st td di is sc co on nn ne ec ct te el le ec ct tr ri ic ca al lp po ow we er ra an nd dt th he en ns se ep pa a- -
r
ra at te et th he ev ve en nt tc co on nn ne ec ct to or rf fr ro om mt th he ed da am mp pe er r. .M Ma an nu ua al ll ly y
(
(u us si in ng gh ha an nd dt to oo ol ls si if fr re eq qu ui ir re ed d) )r ro ot ta at te et th he eb bl la ad de eu un nt ti il l
t
th he ee en nd ds sw wi it tc ch hc cl lo os se es s. .R Re ep po os si it ti io on na an nd dr re ec co on nn ne ec ct tt th he e
v
ve en nt tc co on nn ne ec ct to or rt to ot th he eb bo oi il le er rb be ef fo or re et tu ur rn ni in ng go on nt th he e
e
el le ec ct tr ri ic ca al lp po ow we er r. .
5. Allow circulator to run 15 to 30 minutes, which should
purge any leftover air from system. Check automatic air
vent for the proper operation and entire system for any
leaks. Make sure all air is purged from system before
lighting boiler.
6. Set thermostat to no longer call for heat. Observe that
damper position indicator rotated to closed position.
7. Set thermostat to lowest setting and light boiler follow-
ing lighting instructions in Figures 2.4, 2.5, 2.6 & 2.7.
Boiler is equipped with flame rollout switch to shut down
boiler in case of sustained flame roll-out or excessive
heat behind front panel. If switch opens, see the infor-
mation on “Safety Controls” on this page.
8. Observe pilot and main burner flame (see Figure 2.3).
All burner ports should be ignited and burn with a steady
blue flame.
DAMPER POSITION INDICATOR
MUST BE IN VISIBLE LOCATION
FOLLOWING INSTALLATION.
OPEN
CLOSED
FLOW DIRECTION
FIGURE 2.2
FIGURE 2.1
D
DA AN NG GE ER R: :I If ff fl la am me er ro ol ll lo ou ut ts sw wi it tc ch ho or rs sp pi il ll ls sw wi it tc ch ht tr ri ip ps s
r
re ep pe ea at te ed dl ly yd du ur ri in ng gs st ta ar rt t- -u up po or ro op pe er ra at ti io on n, ,i it ti in nd di ic ca at te es sa a
h
ha az za ar rd do ou us sc co on nd di it ti io on nt to ob be ec co or rr re ec ct te ed di im mm me ed di ia at te el ly y. .
W
WA AR RN NI IN NG G: :I If fb bo oi il le er rc ca an nn no ot tb be er re es st to or re ed dt to on no or rm ma al l
o
op pe er ra at ti io on na af ft te er rr re es se et tt ti in ng go of fs sp pi il ll ls sw wi it tc ch h, ,o or ri if ff fl la am me e
r
ro ol ll lo ou ut ts sw wi it tc ch hh ha as st tr ri ip pp pe ed d, ,d do on no ot ta at tt te em mp pt tt to op pu ut tt th he e
b
bo oi il le er ri in no op pe er ra at ti io on n. .I Im mm me ed di ia at te el ly yc co on nt ta ac ct ta aq qu ua al li if fi ie ed d
s
se er rv vi ic ce ep pr ro of fe es ss si io on na al l. .
W
WA AR RN NI IN NG G: :K Ke ee ep pb bo oi il le er ra ar re ea ac cl le ea ar ra an nd df fr re ee ef fr ro om mc co om m- -
b
bu us st ti ib bl le em ma at te er ri ia al ls s, ,g ga as so ol li in ne ea an nd do ot th he er rf fl la am mm ma ab bl le e
v
va ap po or rs sa an nd dl li iq qu ui id ds s. .O Ot th he er rw wi is se e, ,f fi ir re eo or re ex xp pl lo os si io on nm ma ay y
r
re es su ul lt t. .

18
C
CA AU UT TI IO ON N: :N Ne ev ve er rl le ea av ve et th he ej jo ob bw wi it th hy ye el ll lo ow wb bu ur rn ni in ng g
f
fl la am me es s. .T Th hi is sc co on nd di it ti io on ni in nd di ic ca at te es sp po oo or rc co om mb bu us st ti io on n
a
an nd dw wi il ll lq qu ui ic ck kl ly yc ca ar rb bo on ni iz ze et th he eb bo oi il le er r, ,r re ed du uc ci in ng ge ef ff fi i- -
c
ci ie en nc cy ya an nd db bo oi il le er rl li if fe e. .I It tm ma ay ya al ls so ob be ea an ni in nd di ic ca at ti io on no of f
i
im mp pr ro op pe er rv ve en nt ti in ng go or rc co om mb bu us st ti io on na ai ir rs su up pp pl ly y. .I If fu un na ab bl le e
t
to oa ad dj ju us st tf fl la am me ep pr ro op pe er rl ly y, ,c co on ns su ul lt ty yo ou ur rl lo oc ca al lu ut ti il li it ty y. .
9. Boilers are shipped from the factory with the primary
air shutters on the main burner wide open. It is recom-
mended these air shutters be left in the wide open posi-
tion unless there is lifting of the flame above the burner
ports. If there is lifting, the air shutters should be gradu-
ally closed until the lifting is eliminated. It may also be
necessary to adjust the primary air shutters if the input
rate is reduced by a change in the orifices.
10. After burner has been in operation for about 10 min-
utes, check gas input rate to boiler as follows:
a. Make sure that all appliances served by meter are
turned off during timing of gas input rate to the boiler.
b. Measure the time in seconds it takes for the boiler
to use10 cubic feet of gas. Divide 36,000 by the num-
ber of seconds (this is the number of cubic feet of gas
used per hour). Multiply this figure by the heating
value of the gas to obtain Btu input per hour.
Example: An R-300B boiler takes 2 minutes to use 10
cubic feet of natural gas. Local utility indicated heating
value of the natural gas being supplied is 1020 Btu/cu
ft. Therefore:
(2x60) = 120 seconds
36,000 x 1020 = 306,000 Btu/hr
120
Therefore, the boiler input is correct.
N
NO OT TE E: :B Be ef fo or re ec ca al lc cu ul la at ti in ng gt th he ei in np pu ut to of ft th he eh he ea at ti in ng g
e
eq qu ui ip pm me en nt t, ,o ob bt ta ai in nt th he eh he ea at ti in ng gv va al lu ue eo of ft th he eg ga as sf fr ro om m
t
th he el lo oc ca al lu ut ti il li it ty y. .
11. If boiler input needs to be corrected, adjust the com-
bination gas valve pressure regulator. (Regulator is fac-
tory set at 3.5” W.C. for natural gas or 10” W.C. for
propane.) Turn adjusting screw clockwise to increase gas
flow (increase input). Turn adjusting screw counterclock-
wise to decrease gas flow (decrease input). In no case,
should final manifold pressure setting vary more than .2”
from factory-set pressures. If rated input cannot be
obtained with regulator adjustment, gas supply pressure
or orifice size may be the cause. Consult your local utili-
ty and Hydrotherm.
12. The gas burner orifices supplied with the boiler have
been carefully designed to provide the correct gas input
rate for most gas conditions typically found in the U.S.
Occasionally, however, the local gas characteristics may
not allow the unit to be properly adjusted for input. If this
is the case, the local utility or Hydrotherm may recom-
mend the orifices be changed. When changing orifices,
follow the procedures in Section 3 of this manual.
13. Start and stop burners several times by raising and
lowering the thermostat setting.
14. After the boiler has been firing long enough to raise
the boiler water temperature to above the minimum set-
ting of the high limit, check the high limit by turning its set-
ting from maximum to minimum setting. This should turn
the boiler off. Return high limit to desired setting.
15. With the boiler firing, disconnect the wire connected
to the “PV” terminal on Honeywell S8600 control. Gas
valve should close.
NORMAL PILOT FLAME
Q314ALB
STANDING
PILOT
MODELS
LIFTING
(TOO MUCH AIR) YELLOW
TIPPING
(MARGINAL)
MAIN BURNER FLAMES
NORMAL
(HARD FLAME)
YELLOW
FLAME
(TOO LITTLE AIR)
Q345ALB
INTERMITTENT
IGNITION
PILOT
MODELS
Q314ALB
STANDING PILOT
MODELS
FIGURE 2.3

19
1. S
ST TO OP P! !Read the safety information above.
2. Set the thermostat to lowest setting.
3 Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device
which automatically lights the pilot. Do not try to light the
pilot by hand.
5 Remove control access panel, (if applicable)
6. Rotate gas control knob clockwise to “OFF”
7. Wait five (5) minutes to clear out any gas.
Then smell for gas, including near the floor.
If you then smell gas S
ST TO OP P! !Follow “A” in the safety infor-
mation above. If you don’t smell gas, go to next step.
8. Turn gas control knob counterclockwise to “ON”.
9. Replace control access panel.
10. Turn on all electric power to the appliance.
11. Set the thermostat to the desired setting.
12. If the appliance will not operate, follow the instructions
“To Turn Off Appliance” and call your service technician or
gas supplier.
W
WA AR RN NI IN NG G: :
I
If fy yo ou ud do on no ot tf fo ol ll lo ow wt th he es se ei in ns st tr ru uc ct ti io on ns se ex xa ac ct tl ly y, ,a af fi ir re eo or re ex xp pl lo os si io on nm ma ay yr re es su ul lt tw wi it th hp pr ro op pe er rt ty yd da am ma ag ge e, ,p pe er rs so on na al li in nj ju ur ry y, ,o or rl lo os ss so of fl li if fe e. .
A
A. .B BE EF FO OR RE EO OP PE ER RA AT TI IN NG Gsmell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
W
WH HA AT TT TO OD DO OI IF FY YO OU US SM ME EL LL LG GA AS S
•Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone
in your building.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
B
B. .Use only your hand to push in or turn the gas control
knob, don’t try to repair it, call a qualified service tech-
nician. Force or attempted repair may result in a fire or
explosion.
C
C. .Do not use this appliance if any part has been under
water. Immediately call a qualified service technician to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
LLIIGGHHTTIINNGGCCOONNTTIINNUUOOUUSSPPIILLOOTTIINNSSTTRRUUCCTTIIOONNSS
S
St ta an nd di in ng gP Pi il lo ot tH Ho on ne ey yw we el ll lV VR R8 83 30 00 0
N
Na at tu ur ra al lo or rP Pr ro op pa an ne eG Ga as s
T
Th hi is sa ap pp pl li ia an nc ce eh ha as sa ap pi il lo ot tw wh hi ic ch hm mu us st tb be el li it tb by yh ha an nd d. .W Wh he en nl li ig gh ht ti in ng gt th he ep pi il lo ot t, ,f fo ol ll lo ow wt th he es se ei in ns st tr ru uc ct ti io on ns se ex xa ac ct t- -
1
1. .S ST TO OP P! !Read the safety information above on this
page.
2. Set the thermostat to lowest setting.
3. Turn off all electric power to the appliance.
4. Remove control access panel (If applicable).
5. Turn gas control knob clockwise to “OFF”.
6. Wait five (5) minutes to clear out any gas. Then smell
for gas, including near the floor. If you then smell gas,
S
ST TO OP P! !Follow “A” in the safety information above. If you
don’t smell gas, go to the next step.
7. Remove the base door covering the top of the burners
and enclosing the pilot.
8. Find pilot – Follow metal tube from gas control. The
pilot is between the central burner tubes behind the base
door.
9. Turn knob on gas control counterclockwise to “Pilot”.
10. Push down and hold the red button next to the control
knob. Immediately light the pilot with a match.
Continue to hold the red button down for about one (1)
minute after the pilot is lit.
Release button and it will pop back up. Pilot should
remain lit. If it goes out, repeat steps 5 through 10.
• If button does not pop up when released, stop immedi-
ately and call your service technician or gas supplier.
• If the pilot will not stay lit after several tries, turn the gas
control knob to “OFF” and call your service technician or
gas supplier.
11. Replace the base door.
12. Turn gas control knob counterclockwise to “ON”.
13. Turn on all electric power to the appliance.
14. Set thermostat to desired setting.
INLET
GAS CONTROL KNOB
SHOWN IN "OFF" POSITION
GAS
ON
OFF
RESET BUTTON
PILOT
O
OP PE ER RA AT TI IN NG GI IN NS ST TR RU UC CT TI IO ON NS S
H
Ho on ne ey yw we el ll lV VR R8 83 30 04 4
H
Ho on ne ey yw we el ll lV VR R8 83 30 00 0
INLET
GAS CONTROL KNOB
SHOWN IN "OFF" POSITION
GAS
ON
OFF

20
S
SE EC CT TI IO ON N3 3: :M MA AI IN NT TE EN NA AN NC CE E
This boiler has been designed to provide years of trouble
free performance in normal installations. Examination by
the homeowner at the beginning of each heating season,
and in mid-heating season, should assure continued
good performance. In addition, the boiler should be
examined by a qualified service professional at least
once every year.
N
NO OT TE E: :B Bo oi il le er ri is sn no ot tf fo or ru us se ei in ns sy ys st te em ms sw wh he er re ew wa at te er r
i
is sr re ep pl le en ni is sh he ed d. .D Do on no ot td dr ra aw ww wa at te er rf fr ro om ms sy ys st te em mf fo or r
c
cl le ea an ni in ng g. .M Mi in ne er ra al ls si in nw wa at te er rc ca an nb bu ui il ld du up po on nh he ea at t
t
tr ra an ns sf fe er rs su ur rf fa ac ce es sa an nd dc ca au us se eo ov ve er rh he ea at ti in ng ga an nd ds su ub bs se e- -
q
qu ue en nt tf fa ai il lu ur re eo of fc ca as st ti ir ro on ns se ec ct ti io on ns s. .
N
NO OT TE E: :D Do on no ot to ob bs st tr ru uc ct tt th he ef fl lo ow wo of fc co om mb bu us st ti io on na an nd d
v
ve en nt ti il la at ti io on na ai ir r. .
N
NO OT TE E: :I If fb bo oi il le er ri is se eq qu ui ip pp pe ed dw wi it th ha al lo ow ww wa at te er rc cu ut to of ff f, ,
f
fo ol ll lo ow wm ma an nu uf fa ac ct tu ur re er r’ ’s sm ma ai in nt te en na an nc ce ei in ns st tr ru uc ct ti io on ns s. .
WWAATTEERRTTRREEAATTMMEENNTT
Water treatment is recommended in areas where water
quality is a problem. A local water treatment company
should be consulted to determine the requirements for
your particular system and locality.
FFRREEEEZZEEPPRROOTTEECCTTIIOONN
Where absolutely necessary, system antifreeze can be
utilized. It must be compatible with hydronic heating sys-
tems. System must be designed to accommodate nec-
essary changes in heat transfer, pump head, flow rate &
expansion. For more information, consult The Hydronics
Institute Technical Topics Number 2A publication.
N
NO OT TE E: :N Ne ev ve er ru us se ea an nR RV V- -t ty yp pe ea an nt ti if fr re ee ez ze ep pr ro ot te ec ct ti io on n
s
so ol lu ut ti io on nn no or ra an na au ut to om mo ot ti iv ve e- -t ty yp pe ea an nt ti if fr re ee ez ze ea as sd da am m- -
a
ag ge et to ot th he eb bo oi il le er ra an nd do ot th he er rs sy ys st te em mc co om mp po on ne en nt ts sm ma ay y
r
re es su ul lt t. .
BBEEFFOORREEEEAACCHHHHEEAATTIINNGGSSEEAASSOONN
1. Remove and inspect draft hood and vent piping (con-
necting draft hood to chimney or vent) for obstructions,
soot accumulation, rust or corrosion. Clean and replace
as necessary. Check tightness of joints; seal all joints
where necessary.
2. Check boiler flue passageways in the boiler sections
for any blockage or soot accumulation. Remove draft
hood, jacket top and cast iron dome. Using a flash light,
examine all flue passageways.
a. If passageways are free of soot and obstructions,
replace dome and seal with furnace cement or high
temperature silicone adhesive/sealant.
b. If passageways need cleaning, remove burners as
described in paragraph 3 below. Insert long-handle
bristle flue brush down between section tubes and
upward through sections from combustion chamber in
both diagonal directions to remove carbon from fin-
ned surfaces. Vacuum debris. Replace dome and seal
with furnace cement or high temperature silicone
adhesive/sealant.
c. Reinstall jacket top panel and draft hood.
3. Check and clean burner assembly. Remove burner
access panel. To remove burners, lift up and to rear until
burners are disengaged from orifices. Brush top of burn-
ers with soft bristle brush; blow out with air or vacuum.
4. Check gas manifold for proper position and reassem-
ble burners to the manifold. Line up holes in burners with
the orifices and slide assembly back into position. BE
SURE TO REINSTALL BURNER WITH PORTS ON THE
TOP SURFACE (UPRIGHT).
5. When a low water cut-off has been utilized, follow the
manufacturer’s maintenance instructions. As a minimum,
test electronic control operation at least once a year.
Float type controls should be flushed twice a year.
6. Lubricate circulator motor according to manufacturer’s
instructions. This information may be contained in label-
ing on the pump frame.
7. Follow “System Start-Up & Adjustments” procedures in
Section 2 of this manual.
D
DA AN NG GE ER R: :T To oa av vo oi id df fi ir re ea an nd de ex xp pl lo os si io on nh ha az za ar rd ds s: :D Do o
n
no ot ts st to or re ea an ny yt th hi in ng ga ag ga ai in ns st tb bo oi il le er ro or ra al ll lo ow wd di ir rt t/ /d de eb br ri is s
t
to oa ac cc cu um mu ul la at te ei in na ar re ea ai im mm me ed di ia at te el ly ys su ur rr ro ou un nd di in ng gb bo oi il l- -
e
er r. .K Ke ee ep pb bo oi il le er ra ar re ea ac cl le ea ar ra an nd df fr re ee ef fr ro om mc co om mb bu us st ti ib bl le e
m
ma at te er ri ia al ls s, ,g ga as so ol li in ne ea an nd do ot th he er rf fl la am mm ma ab bl le ev va ap po or rs sa an nd d
l
li iq qu ui id ds s. .D Do on no ot ta al ll lo ow wl li in nt t, ,p pa ap pe er ro or rr ra ag gs st to oa ac cc cu um mu u- -
l
la at te en ne ea ar rb bu ur rn ne er rs s. .D Do on no ot tp pl la ac ce ec cl lo ot th hi in ng go on nb bo oi il le er rt to o
d
dr ry y. .
T
TO OT TU UR RN NO OF FF FG GA AS ST TO OA AP PP PL LI IA AN NC CE E
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if service is
to be performed.
3. Turn gas control knob counterclockwise to “OFF” Do
not force.