Trane THT02775 User Manual

BAS-SVX44A-EN 47
Other Functional Components
permanent memory, the factory default preset parameters are used and are stored to permanent
memory.
The entire permanent memory data can be reset manually back to factory default data using
Configuration Option Number 0300.
Note: In instances where there is a loss of two (2) power cycles, the firmware limits the EEPROM
write to five (5) writes of data for 24 hours. Thereafter, the EEPROM write capability is
disabled. After 24 hours, the counter resets and allows five more 2-cycle power loss
EEPROM writes for the next 24 hours.
Compressor and Auxiliary Heat Lockout
This function is available with only Configuration Option Number 0210 set to 2 and with one or both
Configuration Option Numbers 0220 and 0221 set to some other setting except zero (0).
Compressor and auxiliary heat is used for heat pump systems with more heat stages than cool
stages. When the temperature from an outdoor sensor is:
• Above the auxiliary lockout point, only the compressor will operate on a call for heat.
• Below the compressor lockout point, only the auxiliary heat will operate on a call for heat.
• Between the compressor and auxiliary lockout points, the compressor and auxiliary heat will
operate on a call for heat.
There is a minimum 5°F (2.5°C) deadband between compressor and auxiliary heat lockout
temperatures. Configuration option #220 sets the compressor lockout point; #221 sets the auxiliary
lockout point. Refer to the following illustrations.
Aux Lockout
Temperature
IPN 0221=0
Compr Lockout
Temperature
IPN0220≠0
Auxiliary H eat Only
Both C om pressor H P
and Auxiliary Heat
O
u
t
d
o
o
r
T
e
m
p
e
r
a
t
u
r
e
15 to 45F (-9.5 to 7.0C)
IPN0210 =2 (Heat Pump Operation
with only Compr Lockout)
Aux Lockout
Temperature
IPN0221≠0
Compr Lockout
Temperature
IPN 0220=0
Both C om pressor H P
and Auxiliary Heat
Compressor HP Only
O
u
t
d
o
o
r
T
e
m
p
e
r
a
t
u
r
e
40 to 60F (4.5 to 15.5C)
IPN0210 =2 (Heat Pump Operation
with only Aux Lockout)
Aux Lockout
Temperature
IPN0221≠0
Compr Lockout
Temperature
IPN0220≠0
Auxiliary H eat Only
Both C om pressor H P
and Auxiliary Heat
Compressor HP Only
O
u
t
d
o
o
r
T
e
m
p
e
r
a
t
u
r
e
40 to 60F (4.5 to 15.5C)
15 to 45F (-9.5 to 7.0C)
IPN0210 =2 (Heat Pump Operation
with Compr and Aux Lockout)
Both Compressor and Auxiliary
Lockout Enabled
Compressor Lockout Disabled
and Auxiliary Lockout Enabled
Compressor Lockout Enabled
and Auxiliary Lockout Disabled

Trane THT02775 Specifications

General

Brand	Trane
Model	THT02775
Category	Thermostat
Language	English