Aprilaire 700 SERIES Installation instructions

FURNACE
BLOWER MOTOR
24 VAC FURNACE ACCESSORY
TERMINALS OR TRANSFORMER
(10VA MINIMUM)
MODEL 50
CURRENT SENSING RELAY
(IF REQUIRED)
SHUT-OFF
(SADDLE VALVE)
WATER SUPPLY
IMPORTANT
USE 120 VAC POWER SOURCE OTHER THAN FURNACE MOTOR
CIRCUIT. HOWEVER, THE TRANSFORMER CAN BE POWERED OFF
THE HOT 120 VAC LINE BEFORE IT ENTERS THE FURNACE.
IMPORTANT
WHEN MODEL 50 CURRENT SENSING RELAY IS USED:
BROWN WIRES
120 VAC
OUTLET
• DO NOT WIRE TRANSFORMER INTO FURNACE BLOWER CIRCUIT.
• WIRE MODEL 50 CURRENT SENSING RELAY
INTO 24 VAC HUMIDIFIER CONTROL CIRCUIT
ONLY! DO NOT INSTALL IN TRANSFORMER
PRIMARY CIRCUIT.
COMMON
HI
LO
CONNECT DRAIN LINE HERE
BROWN WIRES
120 VAC OUTLET
SHUT-OFF
(SADDLE VALVE)
WATER SUPPLY
CONNECT DRAIN LINE HERE
COMMON
24 VAC FURNACE ACCESSORY TERMINAL
OUTDOOR TEMPERATURE
SENSOR OR MANUAL
MODE RESISTOR
CONTINUOUSLY POWERED
24 VAC TRANSFORMER
PROVIDED WITH HUMIDIFIER
IMPORTANT
DO NOT WIRE TRANSFORMER
INTO FURNACE BLOWER CIRCUIT.
NORTH, EAST
OR WEST SIDE
OF HOME
ABOVE EXPECTED
SNOW LINE
RCAB ODT CfW/G H
NOTE: IF 120V, INSTALL 24V TRANSFORMER.
TERMINALS MAY BE LABELED: “HUM”, “ACC” OR “EAC”
CONSULT FURNACE MANUFACTURER FOR VOLTAGE AND
OPERATION PARAMETERS OF ACCESSORY TERMINALS.
NOTE: SEE CONTROL INSTRUCTIONS FOR OTHER WIRING OPTIONS.
90-1206
90-1208
Mod l 700M
MANUAL CONTROL
Mod l 700
DIGITAL HUMIDIFIER CONTROL
This product must b install d by a qualifi d h ating and air conditioning contractor. Failur to do so could r sult in s rious injury from l ctrical shock.
This product must b install d in complianc with all local, stat and f d ral cod s.
Prop r humidification and humidity control also r quir s that th hom b construct d in accordanc with local cod s and good building practic s.
ATTENTION INSTALLER:
READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING INSTALLATION
MODEL 700 SERIES HUMIDIFIER
RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX [phone]
INSTALLATION OPTIONS
Typical Installation Alt rnat Installation
COOLING COILS IN
WARM AIR PLENUM
Aprilair to
b install d
as shown in
r lation to
cooling coils.
RECOMMENDED WIRING DIAGRAMS
(SEE STEP 6 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)
90-922
90-921
RETURN RETURN
HOT WATER
SUPPLY SUPPLY
Ori ntation of Aprilair Mod l 700
and 700M to Cooling Coils
WARNING
1. ELECTRICAL SHOCK HAZARD.
Disconn ct l ctrical pow r to th
furnac b for starting installation.
Failur to do so could r sult in s rious
injury from l ctrical shock.
2. SHARP EDGES HAZARD. Sharp
dg s may caus s rious injury from cuts.
Us car wh n making pl num op nings
and handling ductwork.
3. RISK OF SCALDING. Wat r
t mp ratur ov r 125°F can caus s v r
burns and scald instantly. Shut off th hot
wat r supply b for disconn cting or
tapping into any hot wat r supply lin .
SPECIFICATIONS
HUMIDIFIER DIMENSIONS
Width 15 29⁄32”
H ight (including sol noid valv
and drain spud) 18”
D pth 1011⁄32”
PLENUM OPENING
143⁄4”W x 145⁄16”H
WATER FEED RATE
6 gph
ELECTRICAL DATA
120 VAC-60 Hz, 0.8 AMP
CAUTION
1. Do not install humidifi r wh r fr zing t mp ratur s
could occur. Th wat r lin could fr z and crack
causing wat r damag to th hom .
2. Do not install humidifi r on th furnac jack t.
3. Do not install humidifi r on a pl num fac wh r th
blank d off nds of th cooling coil will r strict air
mov m nt through th humidifi r.
4. Do not s t humidity l v l abov r comm nd d or to
r comm nd d l v l if cond nsation xists on insid
windows of any unh at d spac , as cond nsation
damag may r sult. Exc ss humidity can caus
moistur accumulation which can allow th possibility
for mold growth in th hom .
5. Do not conn ct th Mod l 700 or 700M pow r cord to multi-
sp d furnac blow r motors or blow r motors oth r than 120
VAC. Pr matur compon nt failur may r sult. Us R s arch
Products Corporation Mod l 50 Curr nt S nsing R lay.
6. Wh n installing Humidifi r Control on a downflow furnac ,
nsur blow r continu s to run aft r a h at call is satisfi d to
liminat high t mp ratur s from damaging th Control.
7. Do not install humidifi r wh r wat r pr ssur xc ds
125 psi, sinc damag to th humidifi r may r sult. Follow
cod s in ff ct conc rning pr ssur r duction.
8. Do not install humidifi r on th supply pl num wh r static
pr ssur xc ds 0.4 in. wg.
RISK OF PROPERTY AND EQUIPMENT DAMAGE.
BLANKED OFF
END OF COIL
NOTES
1. Mod ls 700 and 700M
ar not suitabl for
installation on ducts
with horizontal airflow.
P rformanc will b
r duc d.
2. Wh n installing Aprilair
humidifi r on a h at
pump syst m, us hot
wat r. Th h at d
wat r suppl m nts th
r duc d supply air
t mp ratur as add d
h at for vaporation.

READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING INSTALLATION
TEMPLATE MUST BE LEVEL
– TOP –
READ REVERSE SIDE FIRST! READ REVERSE SIDE FIRST!
Figur 1
10008272 B2204690A 10.08
90-923 90-924 90-925 90-926
Figur 2 Figur 3 Figur 4
6
7
12
5
23
1
16
4
18
9
14
11
10
8
13
15
17
90-1244
1. D tach th cov r ass mbly by
lifting th latch at th bottom.
R mov th Wat r Pan l®
vaporator ass mbly by grasping
at top and tipping out. S Figur 1.
2. Position t mplat on supply
pl num. Mak sur t mplat is
l v l. Allow cl aranc for drain lin
and for s rvicing. S “Installation
Options” on opposit sid for
position r lativ to cooling coil.
Trac t mplat outlin . Cut 14-3/4”
wid x 14-5/16” high op ning. Avoid
injury from sharp dg s.
3. Position bas (2) in duct op ning
top-first so hooks ngag sh t m tal
at top. S Figur 2. Ins rt bottom of
bas and slid down to ngag hooks
at bottom.
4. Rotat swing locks to s cur bas
to duct. S Figur 3. Fast n bas to
duct using 4 sh t m tal scr ws in
hol s provid d.
5. Ins rt Wat r Pan l Evaporator
ass mbly into bas . Mak sur bottom of
scal control ins rt (5) is ov r drain
op ning. Snap top of vaporator ass mbly
into bas .
6. Control installation and wiring.
Disconn ct l ctrical pow r to furnac
b for wiring control. In ord r for
humidifi r to op rat , furnac must b on
and RH must b b low s t-point of control.
Wiring diagrams illustrat r comm nd d
m thod of d t cting furnac op ration.
MANUAL HUMIDIFIER CONTROL,
MODEL 700M:
Manual Control can b mount d in
r turn duct or on wall in living spac .
Knob and cov r must b r mov d to
mount control. S wiring diagram for
24V control conn ctions.
• For r turn duct mounting, position
t mplat in conv ni nt location on duct.
Avoid injury from sharp dg s wh n
cutting op ning. Mak sur foam
gask t is in plac and s cur control to
duct using 2 scr ws in hol s provid d.
• For wall-mount, s l ct location that
will not b aff ct d by drafts or h at
sourc s. R mov and discard foam
gask t and s cur control ov r wir
acc ss op ning using scr ws &
anchors provid d.
DIGITAL HUMIDIFIER CONTROL,
MODEL 700:
• S l ct location for control on r turn
duct. Drill 3/4” hol for s nsor. Knob
and cov r must b r mov d to mount
control. Plac control on duct with RH
s nsor xt nding into duct op ning.
Mak sur gask t is in plac around
s nsor cag . S cur control to duct
using 2 scr ws in op nings provid d.
• Control must b pow r d by a
continuous 24 V sourc . S wiring
diagrams on t mplat and control
instructions for 24 V control
conn ctions.
7. Humidifi r will function with cold,
hot, soft n d or unsoft n d wat r. Hot
wat r (140°F max) will provid maximum
vaporativ capacity. Saddl valv
provid d may b us d to tap into wat r
supply. S installation instructions on
saddl valv packag . Saddl valv is
d sign d to b fully op n d or clos d.
Do not us to r gulat flow.
8. Run 1/4” copp r tubing from saddl
valv to sol noid valv . DOUBLE-
WRENCH TO PREVENT LEAKING.
S Figur 4.
9. Run 1/2” I.D. hos from drain spud to
floor drain. Mak sur drain has
constant downward slop and is not
kink d. Do not ov r-tight n hos clamp
onto drain spud. Do not us solv nt
adh siv on drain spud.
10. Ch ck humidifi r op ration. Op n
saddl valv and turn control to high st
s tting. Turn on furnac . Allow
humidifi r to run until wat r flows from
drain. Mak sur all l ctrical
conn ctions ar s cur and all
plumbing conn ctions ar wat r-tight.
S t control to prop r s tting.
FURNISHED ITEMS
24 VAC Transform r
Digital Humidifi r Control
(Mod l 700 only)
Manual Humidifi r Control
(Mod l 700M only)
Humidifi r Control
Installation Instructions
Saddl Valv
Humidifi r Installation T mplat
Mounting scr ws
(sh t m tal scr ws)
Wat r supply lin (1⁄4” copp r)
Drain lin (1⁄2” I.D. hos )
Low voltag wir
Mod l 50 Curr nt S nsing R lay
(if r quir d)
ITEMS NOT FURNISHED
IMPORTANT! B sur own r’s manual containing instructions for op ration
and warranty information is giv n to own r in ord r to avoid unn c ssary calls.
Warranty is void unl ss humidifi r is install d by qualifi d h ating and air conditioning
contractor du to possibl misapplication of product.
PARTS LIST
1. Front Cov r
2. Bas
3. Orific Plat
4. Motor Mount Bridg
5. Scal Control Ins rt
6. Wat r Pan l Evaporator
7. Wat r Distribution Tray
8. Fan Blad
9. Motor
10. Motor Mount Gask t
11. Control R lay
12. Pow r Cord
13. Strain R li f Bushing
14. Sol noid Valv
15. Conn ctor Plug
16. F d Tub
17. Nozzl
18. R lay Conn ctor Plug
NOTE: BEFORE LEAVING THE
JOB SITE, MAKE SURE:
1. Saddl valv is fully op n.
2. All plumbing conn ctions ar
wat rtight.
3. Humidifi r functions prop rly.