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Heat Controller, Inc. INSTALLATION INSTRUCTIONS HDG Series Air Handler
20
Scroll Heat Pump Applications*
Air Handler: Heat Pumps Piston Size
HDG18FB-1A HRG18S-1D 0.052 inch
HDG24FB-1A HRG24S-1D 0.058 inch
HDG30FB-1A HRG30S-1D 0.065 inch
HDG36FB-1A HRG36S-1D 0.068 inch
HDG42FB-1A HRG42S-1D 0.080 inch
HDG48FB-1A HRG48S-1D 0.090 inch
HDG60FB-1A HRG60S-1D 0.108 inch
Scroll Compressor Condenser Applications**
Air Handler: Condeners Piston Size
HDG18FB-1A RSG18S-1D 0.052 inch
HDG24FB-1A RSG24S-1D 0.058 inch
HDG30FB-1A RSG30S-1D 0.065 inch
HDG36FB-1A RSG36S-1D 0.073 inch
HDG42FB-1A RSG42S-1D 0.077 inch
HDG48FB-1A RSG48S-1D 0.105 inch
HDG60FB-1A RSG60S-1D 0.097 inch
Rotary Compressor Condenser Applications**
Air Handler: Condeners Piston Size
HDG18FB-1A RSG18R-1D 0.054 inch
HDG24FB-1A RSG24R-1D 0.061 inch
HDG30FB-1A RSG30R-1D 0.065 inch
*PISTON REQUIRED FOR THIS APPLICATION IS FACTORY INSTALLED.
**PISTON REQUIRED FOR THIS APPLICATION IS NOT FACTORY INSTALLED, REQUIRES
FIELD CONVERSION.
Flowrator Piston Size Chart
NOTE: Pistons are factory installed for use with HRG-1D series heat pump. To use the
coil with a RSG-1D series condenser, a piston change may be required. Refer to table below.