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Figure 33: Internal Control Board - Remote Control
Terminations
AUXILIARY
DS1 DS2 MS1 MS2 EH IN
LS FD1 FD2 TF- TF+ C
Control Board Connections
Remote Thermostat Operation
Approved thermostats vary slightly in construction and, with
few exceptions, are operated similarly. The following opera-
tional description pertains to approved non-programmable
thermostats that energize G in Heat and Cool mode.
Heat/Off/Cool Switch
• OFF - cooling and heating functions are defeated.
• HEAT - the selected room temperature is maintained by
cycling the hydronic control valve.
• COOL - the selected room temperature is maintained by
cycling the air conditioner.
Table 14: Maximum Wire Length for Remote Control
Connection
Maximum Wire Length
Wire Size (AWG)
#24
#22
#20
#18
#16
Non-Programmable Thermostat Specs
Manual Changeover One-Stage Heat and Cool or
One-Stage Heat Pump
Part No. 910116771 (1-Pk, White with Wall Plate)
REMOTE THERMOSTAT
R
GL W2 Y/W1 B
GH
GH
C
R
GL
W
Y
Thermostat Connections
Maximum Length Allowed
400 ft.
600 ft.
900 ft.
1500 ft.
2000 ft.
Simple to operate, single push button for one-stage heating
and cooling, or single stage heat pump. Zone compatible and
4- or 5 wire compatible (terminal "C" is optional for non-
heat pump systems). System "heat-off-cool" switch and fan
"on-off" switch.
Specifications
Electrical Rating:
• 24 VAC (18 to 30 VAC)
• 1 amp maximum per terminal
• 3 amp maximum total load
• 30-minute power loss memory retention
Temperature Control Ranges:
• 45°F to 90°F, Accuracy: ± 1°F
System Configurations:
• 1 stage heat, 1 stage cool or single stage electric heat pump
Terminations:
• R, C, W, Y, O, B, G
Wall-Mounted, 7, 5-2 & 5-1-1
Programmable Thermostat Specs
Manual Changeover One-Stage Heat and Cool or
One-Stage Heat Pump
Part No. 910116772 (1-Pk, White with Wall Plate)
Specifications
Electrical Rating:
• 24 VAC (18 to 30 VAC)
• 1 amp maximum per terminal
• 3 amp maximum total load
• 30-minute power loss memory retention
• Easy access terminal block
Temperature Control Ranges:
• 45°F to 90°F, Accuracy: ± 1°F
System Configurations:
• 1 stage heat, 1 stage cool or single stage electric heat pump
Terminations:
• RC, RH, C, W, Y, O, B, G
IM 1193 / Page 19 of 32
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