19
P/N 032498h
Step 5: Set the SMC55-HWQS Advanced Parameters to Modify the
Functionality of the HVAC System
(continued)
Table 16
lists out the details of all the advanced configuration parameters. Some of the advanced parameters are applicable to
all types of HVAC equipment while some are applicable to a specific type of HVAC equipment. The table below also categorizes
these parameters based on the type of applicable systems.
Table 16: Advanced Configuration Parameters for the SMC55-HWQS
Applicable
Systems
Advanced
Configuration
Parameter
Name
Description
Default Value
Range
All
01A
Function Type
0: Operate with thermostat
1: Standalone
2: Not Configured
2: Not Configured
(sets itself to 0
automatically when
connected to a
thermostat and basic
configuration is entered)
0 – 2
02A
Temperature
Sensor Type
0: Flush mounted sensor connected to
HVAC controller
1: Thermostat sensor
1: Thermostat sensor
0 – 1
03A
Deadband
Inactive range above and below the Setpoint
1 °F
0.1 °F – 10 °F
All
(except
for radiant
underfloor
heat)
06A
Minimum Fan
On Time
Minimum time fan is on in auto mode (minutes)
2 minutes
0 – 99
07A
Overrun Cool
Fan Time
Minutes the fan runs after cooling relay opens
0 minutes
0 – 99.9
(minutes)
08A
Overrun Heat Fan
Time
Minutes the fan runs after heating relay opens
0.1 minutes
0 – 99.9
(minutes)
11A
Cool Fan on Delay
Time to delay start of fan after cooling starts.
Only used with Fan Auto Speed when fan was
last off.
0 seconds
0 – 99
12A
Heat Fan on Delay
Time to delay start of fan after heating starts.
Only used with Fan Auto Speed when fan was
last off.
0 seconds
0 – 99
All
18A
Standalone
Temperature
Operation Mode
0: Off
1: Heat Only
2: Cool Only
3: Auto
3: Auto
0 – 3
19A
Standalone Fan
Mode
(not applicable to
radiant floors)
0: Off
1: Low
2: Medium
3: High
4: Auto
5: Single Speed On
4: Auto
0 – 5
20A
Remote Sensor
Temperature
Offset
Temperature offset for remote temperature
sensor. This allows for compensation based
on the installation location of the probe.
0° F
-5.0 – +5.0
26A
Cannot Reach
Setpoint Timeout
Cannot reach setpoint alarm time threshold
(minutes)
30 minutes
0.5 – 99.5
27A
Cannot Reach
Setpoint Action
0: Alarm and keep trying
1: Alarm and enter failsafe
0: Alarm and keep trying
0 – 1
FCUs with
multi-speed
fan
05A
Fan High
Differential
Auto fan mode temperature difference in
degrees to switch from medium to high fan
speed
1.5 °F
0.1 – 10.0
09A
Kick-Start Fan
(multi-speed
fan only)
0: Off
1: Set fan high for 1 second when turning on
0: Off
0 – 1
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