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INSTALLATION
INSTRUCTIONS
FOR
SMALL AND LARGE BYPASS HUMIDIFIERS
READ COMPLETE
SAFETY
INSTRUCTIONS
AND INSTALLATION
INFORMATION
BEFORE STARTING.
This product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in serious
injury from electrical shock. This product must be installed in compliance with all local, state, and federal codes.
WARNING
1. Disconnect electrical power to the furnace and install lock-out tag before
starting installation. Failure to do so could result in serious injury from
electrical shock.
2. Sharp edges may cause serious injury from cuts. Use care when
making plenum openings and handling duct.
3. Hot water temperatures in excess of 125°F may cause serious injury
from burns. Make sure water supply is shut off before connecting
the water supply.
CAUTION
1. Do not install unit where freezing temperatures
could occur.
2. Do not install unit or bypass connection on the furnace cabinet.
3. Do not install unit or bypass connection on a plenum face where
the blanked off ends of the cooling coil restrict air movement
through the humidifier.
4. Do not set humidity higher than recommended.
Condensation
damage may result.
5. Do not connect a transformer to multi-speed furnace blower motors
or blower motors other than 120 VAC. Premature component failure
may result. Connect secondary transformer leads as last step.
6. Do not set humidity up to recommended
levels if there is
condensation
on the inside windows of any unheated living
space. Condensation
damage may result.
7. Do not install unit on the supply plenum where duct static pressure
exceeds
8. Do not install humidifier where water pressure exceeds 125 psi,
since damage to the unit may result. Follow codes in effect
concerning pressure reduction.
SBP
SMALL BYPASS
HUMIDIFIER
Unit Dimensions
12718"w
• 12314
"H • 9118"D,
6 _ di&
round
Ope,_lng
Plenum Opening
9318"W
• 9112"H
V'_ter
Feed Rate
3 gph
Electrical Data
(_
24V-60HZ.
0,5
AMP
LBP
LARGE BYPASS
HUMIDIFIER
Unit Dimensions
13118"W
x 15112"H
• 9118"D,
i"
dia.
round
O_
f*ing
Plenum Opening
J71e'w x t z:_14"H
Water Feed Rate
6gph
Electrical
Data
_)
24v*G_I H z, 0,$ AMP
Diagram
A:
FOR HUMIDIFIER OPERATION DURING "HEATCALL" ONLY
24 VAC
"HUM"
Terminals On
Furnace
Huml_lstaf
Diagram B:
For Humidifier Operation "When Blower Is Energized
NOTE:
CONNECT
SOLENOID
VALVE
TO HOT WATER IF
HUMIDIFIER
V_ILL
BE OPERATED
INDEPENDENT
OF
HEATING CALLS.
3 VAC
_AC"
Telrrnlnals
On Furnace
Transfofr.er
{Flek3 St._opt,eo)
Hu/11KI41_
H VAC
S oleno_l V_ve
Leads
Hum_qslat
Diagram C:
For Humidifier Operation With Thermidistat Control
_:
Do Not Connect
Furnace HUM Terminal Directly To
TherrmOzstat HUM Terminal
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