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Step 4: Set the SMC55-HWQS Basic Parameters for System
Compatibility
(continued)
The different basic configuration parameters and the values available for each of these parameters are listed below:
(01b): System Type
Use this parameter to select the HVAC system type. Refer to the HVAC equipment manual or label to identify the type of HVAC
equipment. The different options available for this parameter are listed in the table below:
Table 4: Values for Different Types of HVAC Equipment
Available Options
00: Conventional
01: Heat pump
02: 2-pipe FCU
03: 4-pipe FCU
04: Hydronic underfloor heating
05: Electric underfloor heating
(02b): Heat Stages
Applicable systems: Conventional and Heat Pump.
Use this parameter to set the number of supported heat stages. This parameter will be skipped if you select an option anything
other than '00: Conventional' or '01: Heat Pump' for the previous parameter (01b). Refer to the HVAC equipment installation
manual or label for the number of supported heat stages. The different options available for this parameter are listed in the table
below:
Table 5: Values for Different Heat Stages Based on System Type
System type (01b)
00: Conventional
01: Heat pump
Continued on next page...
Default Value
00: Conventional
Values for heat Stages (02b)
00: No heat stage
01: 1 heat stage (W
)
1
02: 1 primary source and 1 auxiliary source (W
00: No heat stage
01: 1 stage (W
)
1
02: 2 stage (1 compressor and 1 auxiliary)
03: 2 stage (2 compressors and no auxiliary)
04: 3 stage (2 compressors and 1 auxiliary
Default Value
01: 1 heat stage (W
)
1
)
2
02: 2 stage (1 compressor
and 1 auxiliary)
11
P/N 032498h
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