Page 6
Harmony
®
II Zone Residential Control System − Component Selection
(Gas Heat/Heat Pump Systems With FM21 Heat Pump Control)
CONTROL
CENTER
(16J95)
STOP
ROUND
ZONE DAMPERS
RECTANGULAR
ZONE DAMPERS
NO
DAMPER
TRANSFORMER
up to 5 Dampers
(87344) 45VA
ECONOMIZER
DAMPERS
EMD14-65 or
EMD14M-65
ECONOMIZER
DAMPERS
WIRING HARNESS
120 volts (14H57)
ELECTRONIC AIR
CLEANER
EAC17-14 (75H10)
EAC17-14SQ
(75H11)
EAC17-20 (75H12)
ZONE
THERMOSTAT
(One Required
For Each
Additional Zone)
ZONE 1
MASTER
THERMOSTAT
DISCHARGE
AIR SENSOR
PROBE
(16J98)
CONTROL
PANEL
(16J96)
TWO ZONES
TWO, THREE
OR FOUR ZONES
SINGLE SPEED
OUTDOOR UNIT
HP26
HP27
HP29
10HPB
12HPB
NO
TWO-SPEED
OUTDOOR UNIT
HP21
FM21 HEAT
PUMP
CONTROL
(16J92)
PRESSURE
SWITCH
(21J18)
DEFROST AIR
TEMPERING
MODULE
(16J93)
SERVICE
LIGHT
MODULE
(16J94)
OUTDOOR
THERMOSTAT
NO
NO
START
GAS HEAT/
HEAT PUMP
SYSTEM
HORIZONTAL OR
DOWN-FLOW
UP-FLOW
FURNACE
G21V SERIES
OR
G32V SERIES
W/ EVAP. COIL
HORIZONTAL OR
DOWN-FLOW
FURNACE
GSR21V SERIES
W/ EVAP. COIL
NO
TEMPERATURE
MODULATION
SWITCH
(72H45)
G32V Only
NO
RECOMMENDED THERMOSTATS
Catalog
Description No.
*2 Htg.-1 Clg. 7 Day Programmable 91H72. . . . . . . . . . . .
3 Htg.-2 Clg. 7 Day Programmable 18H13. . . . . . . . . . . . .
3 Htg.-2 Clg. Digital Setpoint 13K97. . . . . . . . . . . . . . . . . .
2 Htg.-1 Clg. 5-1-1 Day Programmable 27H30. . . . . . . . .
**2 Htg.-1 Clg. Electro-mechanical w/ subbase 51H40. . . . .
ZONE DAMPERS
ROUND DAMPERS
Catalog
Description No.
6 in. (152 mm) dia. 77G99. . . . . . . . . . . . . . . . . . . . . . . .
8 in. (203 mm) dia. 78G00. . . . . . . . . . . . . . . . . . . . . . . . .
10 in. (254 mm) dia. 78G01. . . . . . . . . . . . . . . . . . . . . . . . .
12 in. (305 mm) dia. 78G02. . . . . . . . . . . . . . . . . . . . . . . . .
14 in. (356 mm) dia. 78G03. . . . . . . . . . . . . . . . . . . . . . . . .
ZONE DAMPERS
RECTANGULAR DAMPERS
Catalog
Description No.
10 x 8 in. (254 x 203 mm) 78G04. . . . . . . . . . . . . . . . . . . . .
12 x 8 in. (305 x 203 mm) 78G05. . . . . . . . . . . . . . . . . . . . .
14 x 8 in. (356 x 203 mm) 78G06. . . . . . . . . . . . . . . . . . . . .
16 x 8 in. (406 x 203 mm) 78G07. . . . . . . . . . . . . . . . . . . . .
18 x 8 in. (457 x 203 mm) 78G08. . . . . . . . . . . . . . . . . . . . .
20 x 8 in. (508 x 203 mm) 78G09. . . . . . . . . . . . . . . . . . . . .