4
is 2 degrees. The minimum difference is enforced during
Autochangeover operation.
CYCLES PER HOUR LIMIT (Step 8) — The number of
times that heating or cooling can be energized per hour can be
configured. Set the variable to “d” for no limit. Set the variable
to “d1” to disable the 5 minute compressor lockout. The vari-
able can also be set from 2 to 6 cycles per hour. The default is
6 cycles per hour.
DRY CONTACT CONFIGURATION (Step 9) — The Dry
Contact configuration is used to set the thermostat dry contacts
to normally open or normally closed. This should be set to
match the configuration of the external device (if present).
If the configuration is set to normally open, the thermostat
will enter Unoccupied mode when the contacts close. If the
configuration is set to normally closed, the thermostat will en-
ter Unoccupied mode when the contacts open. The default is
normally open.
SERVICE FILTER (Steps 10 and 11) — Step 10 allows the
user to reset the Service Filter counter to zero and remove the
“SERVICE FILTER” icon (if displayed on the thermostat
screen). Press the Fan button while in Advanced Setup Step 10
and the counter is reset to zero. Press the Mode button to adjust
the number of hours the blower will run before the “SERVICE
FILTER” icon is displayed. The range is 0 to 1950 hours. The
set point is adjusted in intervals of 50 hours. Set the variable to
0 to disable this function. The default is 500 hours.
SOFT START (Step 12) — The soft start is used when multi-
ple units are used in an application. The soft start staggers the
start-up times of the units in the event of power loss and restart.
Each unit should be assigned a unit ID number. The 30-second
delay time is multiplied by the unit ID number to get the total
soft start delay time for each unit. For example, if the unit ID
number is 10, set the Soft Start function to 10, the start-up
delay time is 30 seconds x 10 = 300 seconds (5 minutes). The
range is 0 to 99 (ID numbers). A value of 0 disables the func-
tion. The default is 0 (ID number).
FAHRENHEIT/CELSIUS OPERATION (Step 13) — The
thermostat can be set to operate in Fahrenheit or Celsius de-
grees. Set the variable to “F” for Fahrenheit operation. Set the
variable to “C” for Celsius operation. The default is “F.”
SENSOR TYPE (Step 14) — The Sensor Type setting con-
figures the thermostat for use with a remote room sensor, out-
side temperature sensor, or duct temperature sensor. The Sen-
sor Type can be set to Yes or No.
When the Sensor Type is set to Yes, the outside or duct tem-
perature can be viewed by pressing and holding the Mode but-
ton for 2 seconds. If a sensor has not been installed, no temper-
ature will be displayed.
When the Sensor Type is set to No, the thermostat will de-
tect and use an installed sensor as a remote temperature sensor
to control thermostat operation. If a sensor has not been in-
stalled, the thermostat will use its internal temperature sensor.
SECURITY LEVEL (Steps 15 to 17) — The Security Level
limits the actions that the user can perform at the thermostat.
There are 4 security levels. When the security level is set to
“0,” no security will be in effect. When the security level is set
to “1,” the set point range is limited by the settings of Steps 16
and 17. When the security level is set to “2,” the set point range
is limited by the settings of Steps 16 and 17 and the thermostat
operation mode cannot be changed. When the security level is
set to “3,” the set point range is limited by the settings of Steps
16 and 17, the thermostat operation mode cannot be changed,
and set point changes are prohibited. The default is 0.
Security Maximum Heat Set Point (Step 16)
—IftheSecu-
rity Level is not set to 0, the maximum heating set point will be
in effect. The user will not be allowed to set the heating set
point over the specified value. The range of values is 35 to 99 F
(1 to 37 C). The default is 80 F (27 C).
Security Minimum Cool Set Point (Step 17)
— If the Securi-
ty Level is not set to 0, the minimum cooling set point will be
in effect. The user will not be allowed to set the cooling set
point below the specified value. The range of values is 35 to
99 F (1 to 37 C). The default is 65 F (18 C).
Table 2 — Advanced Set Up Configuration
Damage to compressor could result if 5-minute compressor
lockout is disabled or compressor is allowed unlimited
cycles. Do not set thermostat Advanced Setup Step 8 to “d”
or “dl” unless specifically recommended for the application.
STEP DESCRIPTION RANGE DEFAULT
1 Unoccupied Cooling Set Point 35 - 99 F / OF 85 F
2 Unoccupied Heating Set Point 35 - 75 F / OF 55 F
3 Heat Pump Off/On Off
4 Reversing Valve Polarity O / B O
5 Electric Heat Off/On Off
6 Deadband 1 - 6 degrees 2
7 Forced Minimum Temperature Difference 0 - 6 degrees 2
8 Cycles per Hour d, d1, 2 - 6 6
9 Dry Contact Switch
Normally Open /
Normally Closed
Normally
Open
10 Reset Service Filter Icon — —
11 Service Filter Run Time 0-1950 hrs 500 hrs
12 Soft Start 0 - 99 0
13 Temperature Units F / C F
14 Sensor Type Yes / No No
15 Security Level 0 - 3 0
16 Maximum Allowable Heat Set Point 35 - 99 F (1- 37 C) 80 F (27 C)
17 Minimum Allowable Cooling Set Point 35 - 99 F (1 - 37 C) 65 F (18 C)
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