Honeywell SERIES COMMUNICATING TB7600 - Manual (Page 16)

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS
62-2016—01 16
Pwr del Power-up delay
Default value = 10 seconds On initial power up of the thermostat (each time 24 Vac power
supply is removed and re-applied) there is a delay before any
operation is authorized (fan, cooling or heating). This can be used
to sequence start up multiple units/thermostat in one location.
10 to 120 seconds
Frost pr Frost protection enabled
Default value = Off
On heat pump models the
system mode will be forced to
EMERGENCY mode if frost
protection is activated Off: no room frost protection
On: room frost protection enabled in all system mode at: 42 F
(5.6 C)
Frost protection is enabled even in system Off mode
Off or On
Heat max Maximum heating setpoint limit
Default value = 90 F (32 C) Maximum occupied and unoccupied heating setpoint adjustment.
Heating setpoint range is: 40 F to 90 F (4.5 to 32.0 C)
Cool min Minimum cooling setpoint limit
Default value = 54 F (12 C) Minimum occupied and unoccupied cooling setpoint adjustment.
Cooling setpoint range is: 54 F to 100 F (12.0 to 37.5 C)
Pband Proportional Band setting
Default value 2 = 2.0 F (0.6 C) Adjust the proportional band used by the thermostat PI control loop.
CAUTION
Note that the default value of 2.0 F (1.1 C) gives
satisfactory operation in most normal installation cases. The
use of a superior proportional band different than the factory
one is normally warranted in applications where the
thermostat location is problematic and leads to unwanted
cycling of the unit. A typical example is a wall mounted unit
where the thermostat is installed between the return and
supply air feeds and is directly influenced by the supply air
stream of the unit.
Table 14. Configuration Parameters for all models (Continued)
Configuration
parameters Significance Default value Adjustments
Table 15. Keypad Lock Out Levels
Level
Resume/
Override
scheduling
Permanent
Occupied
and
Unoccupied
Setpoints
Temporary
setpoints
using arrows
System
mode
setting
Fan mode
setting
Schedules
setting
Clock
setting
Permanent
hold
Resume
sched Y/N RoomTemp
set Y/N Up key ( )
Down key ( )
Sys mode
set Y/N Fan mode
set Y/N Schedule
set Y/N Clock
set Y/N Schedule
hold Y/N
0 Yes access Yes access Yes access Yes access Yes access Yes access Yes access Yes access
1 Yes access No access Yes access No access No access No access Yes access No access
2 No access No access No access No access No access No access Yes access No access
Value F scale Pband C scale Pband
2 2 F 1.1 C
3 3 F 1.7 C
4 4 F 2.2 C
5 5 F 2.8 C
6 6 F 3.3 C
7 7 F 3.9 C
8 8 F 4.4 C
62-2016.fm Page 16 Thursday, April 14, 2011 1:40 PM