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FAN POWERED HUMiDiFiER WiRiNG DIAGRAM
DiagramA
STANDARD FURNACE;VARIABLESPEED FURNACE; VARIABLE SPEED FAN COiL
vi
HUMIDITRAC
CONTROL
VARIABLE
SPEED
WIRING
TERMINALS
FAN COIL
.....
ii R24V ° ii I--Hq ii
rOOt]
iI
HUM
2
24 VAC
c
(COMMON}
TERMINALS
HUM
ON FURNACE
(HUMIDIFIER}
STANDARD
FURNACE
&
VARIABLE SPEED FURNACE
HUMIDIFIER
HUMIDIFIER
CORD
_2
PLUGGED INTO
120 VAC POWER SOURCE
4VACLEADS
OUTDOOR
__
TEMPERATURE
SENSOR
SWITCHPOSITION
POWER
MODELS
HUMCCLFP1418
HUMDBLFP1418
P110-LFP1418
DiagramB
HUMIDITRAC
CONTROL
WIRING
TERMINALS
STANDARD FAN COIL
Ii R2_vo Ii r.n Ii roD,1 ',
IC
_
J_
_
d_
_
CI
......1311_ .....
DUTDDDB
--UIIU
--
--
/
/
I__
TEMPERATURE
TRANSFORMER
HUMIDIFIER
|
|
SENSOR
(FIELDSUPPLIED)
_
/ /
FURNACE/ A
TOTALINE PII0-0050
BLOWER MOTOR
CURRENT SENSING
HUMIDIFIER
CORD
_
/
/f_
_\)R
_]
RELAY
PLUGGED
INTO
_
!!
ILl
( _L
..........
120 VAC POWER SOURCE _
I
24VACLEADS
@
SWITCH
POSITION
BYPASS
MODELS
NUMCCLFP1518
HUMBBLFP1518
P110-LFP1518
BYPASS HUMIDIFIER WIRING DIAGRAM
DiagramC
FOROPERATION DURING
"HEAT CALL" ONLY
24VAC
Cj
_
TERMINALS
ONFURNACE
HUM--
HUMIDIFIER
Q
HUMIDITRAC
CONTROL
WIRING TERMINALS
'll'
)_!_
_
A_
OUTDOOR
TEMPERATURE
SENSOR
/ / 24VAC
_l
l
SOLENOIDVALVE
¢-,._
LEADS
HUMIDITRAC
CONTROL
SWITCH
POSITION
WIRING
TERMINALS
BYPASS
Ii R24vC Ii FHq
II rOOT1 Ii
DiagramD
FOROPERATIONWHEN
BLOWER IS ENERGIZED
_.
OUTDOOR
120 VAC
4_11_
/
/
/
_
TEMPERATURE
"EAC" ,.....UIF._
/ /
SENSOR
TERMINALS
TRANSFORMER
I
I
ON FURNACE
(F'ELD SUPPUED)
/ /24VAC
J .SDLENDIDVALVE
LEADS
NOTE: CONNECTSOLENOID VALVETO HOT
HUMIDIFIER
_
_(i_IRFCI(
N
WATER IF HUMIDIFIER WILL BE OPERATED
DENT OF HEATING CALLS.
90-1120
tlumidifier Control Troubleshooting Guide
Appliesto both Automatic and Manual Operation unless indicatedotherwise.
SYMPTOM
TROUBLESHOOTING PROCEDURE
Humidifier does
not operate in
"Test" mode
* Make sure furnace blower is operating and thermostat is calling for heat.
* Make sure the Outdoor Temperature Sensor is connected to the "ODT" terminals of the control. (For Manual Operation,
make sure Manual Mode Resistor
Case is in place.)
* Check wiring diagram for correct
Humidifier Control installation.
* Check voltage at Humidifier Control
"R" and "C" terminals. Voltage
should be 22 VAC minimum - 30 VAC
maximum.
* Check Current Sensing Relay
(if used) for correct installation (see
Current Sensing Relay instructions).
Do not use Current Sensing Relay in
transformer circuit or "R" and "C°'
circuit of Humidifier Control. Current
Sensing Relay is to be used in the
"H" circuit only.
*
In "Test" mode, humidifier will
operate for 1 minute only. DO NOT
LEAVEIN TESTMODE AS
HUMIDIFIERWILL NOT OPERATE
WARNING
Sharp edges on the opening may cause cuts. Use care when cutting the plenum opening
and installing the Humidifier Control.
CAUTION
* Do not mount Humidifier Control on supply plenum OF duct. The unit will not withstand
supply temperatures and will malfunction!
* When installing Humidifier Control on counterflow furnaces, ensure blower continues
to run after a heat call is satisfied to eliminate high temperatures from damagingthe
Humidifier Control.
* Do not mount Humidifier Control downstream of the bypass outlet. False humidity
conditions will cause humidifier to operate incoFrectly.
CUTOUTTEMPLATE ALONGEDGES.
1.
2.
3.
4.
5.
PLACE TEMPLATE ON THE RETURNPLENUMUPSTREAMOF(BEFORE) T HE
HUMIDIFIERCONNECTION.
TRACEOUTSIDEEDGESOFTEMPLATE.
REMOVETEMPLATE AND ACCURATELY C UTPLENUMOPENING.
USING 4 SHEETMETALSCREWS, I NSTALLHUMIDIFIERCONTROL IN PLENUMOPENING.
* Make sure saddle valve is open.........................................................................................................................................
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