10
P/N 032498h
Step 4: Set the SMC55-HWQS Basic Parameters for System
Compatibility (continued)
Verify the wiring connections between the thermostat, the SMC55-HWQS, and HVAC equipment as shown in Figure 1 before
starting to configure the SMC55-HWQS. Table 3 below lists the details of all the basic configuration parameters - applicable
systems, basic configuration parameter index, description, default value, and the range of values for each parameter. For the
HVAC system to function properly these parameters must be configured correctly.
Table 3: Basic Configuration Parameters
Applicable
Systems
Basic
Configuration
Parameter
Name Description Default Value Range
All 01b System Type
00: Conventional system
01: Heat pump
02: 2-Pipe FCU
03: 4-Pipe FCU
04: Underfloor radiant heat
05: Underfloor electric heat
00: Conventional system 00–05
Heat
Pump and
Conventional
02b Heat Stages
00: None (No Heat Stage)
01: 1 Stage (W
1
)
02: 2 Stage: 1 Compressor and 1 Auxiliary
03: 2 Stage: 2 Compressor, No Auxiliary
04: 3 Stage: 2 Compressor and 1 Auxiliary
01: 1 Stage (W
1
) 00–04
03b
Run Auxiliary Heat
(Aux/W
2
) with
other heat stages
00: No
01: Yes
Skipped if no Aux/W
2
01: Ye s 00–01
04b
Auxiliary Heat
(Aux/W
2
) upstage
delay
00: 0 minutes
01: 1 minute
02: 2 minutes
03: 5 minutes
04: 10 minutes
05: 20 minutes
06: 30 minutes
07: 1 hour
08: 2 hours
09: 4 hours
10: 8 hours
11-24: 11-24 hou r s
Skipped if no Aux/W
2
05: 20 minutes 00 –24
05b Cool Stages
00: None (no cool stage)
01: 1 Cool stage (Y1)
02: 2 Cool stages (Y1, Y2)
01: 1 Cool stage (Y1) 00–02
Conventional 06b Heat Fan Control
00: Equipment controls fan
01: Thermostat controls fan
01: Thermostat controls fan
00–01
Heat Pump 07b
Changeover /
Reversing Valve
(O/B)
00: On for cooling (O)
01: On for heating (B)
00: On for cooling (O)
Fan Coil Units
and Radiant
Floor
08b
Valve / Element
Type
00: Relay
01: 0–10 V-
02: Floating point (Fan coil units only)
00: Relay 00–01
Fan Coil Units
09b Fan Type
00: Relay (G1, G2, G3)
01: 0–10 V-
00: Relay (G1, G2, G3) 00–01
10b 2-pipe Mode
01: Heat only
02: Cool only
03: Changeover
03: Changeover 01–03
Radiant Floor 11b Floor Control Type
01: Indoor air only
02: Indoor air and floor limiting
03: Floor temperature only
01: Indoor air only 01–03
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