Aprilaire 1770A Dehumidifier User Manual


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WHOLE-HOME INSTALLATION (CONTINUED)
FIGURE 9 – Whole-Home Basement Installation
CONDENSATE HOSE
(TO COMMON DRAIN OR OUTSIDE)
AIR IS PULLED FROM
RETURN DUCT
DEHUMIDIFIED AIR IS SUPPLIED
DOWNSTREAM FROM A-COIL TO
MINIMIZE EVAPORATION OFF A-COIL
A-COIL
RETURN
DUCT
SUPPLY DUCT
DEHUMIDIFIER
115 VAC
CIRCUIT
HVAC / FURNACE
FLOOR DRAIN
FIGURE 10 – Whole-Home Basement Wiring
90-1536 90-1537
DAMPERS
Rf DH -WGhGs
Cf
VENT
HVAC EQUIP SWITCH REMOTE
FLOATDEH B +A
R
C
W
YY
W
G
C
R
G
ODT
SENSOR
THERMOSTAT HVAC EQUIPMENT
DEHUMIDIFIER
CONTROL BOARD
FIGURE 11 – Whole-Home Attic Installation FIGURE 12 – Whole-Home Attic Wiring
90-1536 90-1537
A +BDEH
REMOTEHVAC EQUIP
VENT
Cf
Gs Gh W -DHRf
DAMPERS
G
R
C
G
W
Y Y
W
C
R
SENSOR
ODT
FLOAT
SWITCH
DEHUMIDIFIER
CONTROL BOARD
LOW VOLTAGE
NORMALLY CLOSED
FLOAT SWITCH
HVAC EQUIPMENTTHERMOSTAT
MAIN
RETURN
DUCT
DEHUMIDIFIER
MAIN SUPPLY DUCT
CONDENSATE HOSE
(TO COMMON DRAIN
OR OUTSIDE)
PRINCIPAL
LIVING
SPACE
AIR FILTER
ACCESS
DOOR
HVAC / FURNACE
DEHUMIDIFIED AIR IS
SUPPLIED DOWNSTREAM
FROM EVAPORATOR COIL TO
MINIMIZE EVAPORATION
HVAC EVAPORATOR COIL
OPTIONAL
EXTERNAL
CONTROL
LOCATED IN
LIVING SPACE
CONDENSATE PAN
WITH FLOAT SWITCH
115 VAC CIRCUIT
Attic Installation Note:
The dehumidifier must be installed in a
secondary condensate pan with a float switch.
BASEMENT DUCTING & WIRING
ATTIC DUCTING & WIRING
Wiring Notes:
•IfwiringtoaModel70LivingSpaceControl,seeMODEL70LIVINGSPACECONTROL
section on page 16.
•Ifwiringtoathird-partycontrol,seeTHIRD-PARTYCONTROLsectiononpage17.
7
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