Honeywell Heat/1Cool User Guide - Page 30

T8611 Chronotherm IV Deluxe Programmable Heat Pump Thermostat - heat cool one room

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HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE T8611 Chronotherm IV Deluxe Programmable Heat Pump Thermostat Sequence of Operation The thermostat energizes specific terminals depending on the Fan and System Settings. The LCD will display the time, room temperature, system and fan selection. Symbols will be displayed when the heating, cooling or fan is energized. See Table 4 for specific information. NOTE: Terminals listed in the Energize column vary depending on model. Fan Auto On Selection System Off Off Table 4. Heat Pump System Sequence of Operation. Call None None None G Energize Display Icons None Auto Auto Auto Auto Cool Cool or Auto Heat Heat or Auto None Stage 1 Cooling None Stage 1 heating O or O/Ba O or O/Ba with G and Y1 B or O/Ba B or O/Ba with W1 and G None and None and Auto Heat or Auto Stage 2 heating B or O/Ba with W2, W1 and G , , and Aux Ht Auto Em Heat None B or O/Ba Auto Em Heat Stage 1 heating B or O/Ba, E and G (select models) Auto Em Heat Stage 2 heating B or O/Ba, E and W2 and G (select models) Auto Auto None O/Ba, O or Bb a Configure O/B (select models) in Installer Setup. b Based on last piece of equipment called (cooling = O or heating = B) and Installer Setup selection. Em Ht , , None and Em Ht , Em Ht and Aux Ht 70-6627 • 28

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70-6627
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28
T8611 Chronotherm IV Deluxe Programmable Heat Pump Thermostat
Sequence of Operation
The thermostat energizes specific terminals depending on the Fan and System Settings. The LCD will display the time, room
temperature, system and fan selection. Symbols will be displayed when the heating, cooling or fan is energized. See Table 4 for
specific information.
NOTE:
Terminals listed in the Energize column vary depending on model.
Table 4. Heat Pump System Sequence of Operation.
a
Configure O/B (select models) in Installer Setup.
b
Based on last piece of equipment called (cooling = O or heating = B) and Installer Setup selection.
HEAT PUMP THERMOSTAT CROSS REFERENCE/SELECTION GUIDE
Selection
Fan
System
Call
Energize
Display Icons
Auto
Off
None
None
None
On
Off
None
G
Auto
Cool
None
O or O/B
a
None
Auto
Cool or Auto
Stage 1 Cooling
O or O/B
a
with
G and Y1
and
Auto
Heat
None
B or O/B
a
None
Auto
Heat or Auto
Stage 1 heating
B or O/B
a
with
W1 and G
and
Auto
Heat or Auto
Stage 2 heating
B or O/B
a
with
W2, W1 and G
,
, and Aux Ht
Auto
Em Heat
None
B or O/B
a
Em Ht
Auto
Em Heat
Stage 1 heating
B or O/B
a
, E and G
(select models)
,
and Em Ht
Auto
Em Heat
Stage 2 heating
B or O/B
a,
E and W2 and G
(select models)
,
, Em Ht and Aux Ht
Auto
Auto
None
O/B
a
, O or B
b
None