EXPANSION OUTPUT MODULES
                     
Model Number    Description 
   
HTC2, 3, 4 & 5EXPANSION MODULES 
     
HRC-4 2 Stage Heat & 2 Stage Cool  
HRC-43S 3 Stage Heat & 3 Stage Cool (For use with Triple Compressor AC Units Only)  
HRC-4A 2 Stage Heat & 2 Stage Cool + On/Off Auxiliary Heat Stage  
HRC-4B 2 Stage Heat & 2 Stage Cool + On/Off Economy Cycle Relay Output  
HRC-4D 2 Stage Heat & 2 Stage Cool + On/Off Econ. Cycle Relay O/P with Comparitor Override Function  
HRC-4DE 2 Stage Heat & 2 Stage Cool + Modulating 0-10VDC Econ. Cycle O/P with Comparitor Override  
HRC-4E 2 Stage Heat & 2 Stage Cool + Modulating 0-10VDC Economy Cycle Output   
     
HTC3 & 5  (only) expansion plug on cards  
     
HAX53-Y

HTC3 & 5 Heat, Econ & Cool Y signal expansion card.

  
HAX53-R

HTC3 & 5 Auxillary Relay control card (as extra heat , cool or both capability)

  
     
Multipurpose 

general use output expander modules

  
     

SEZ-QUAD

RRM3

4 x  0-10v controlled relays from 0-10vDC Signal.

3 X 0-10v controlled relays from 0-10vDC Signal.

  
SEZ-HAUX-HS

Multi I/O expansion module from 0-10Vdc Signal.

  
HVS2

VSD Sequencer

  
HYSA4

1 in 4 out Y signal amplifier from  0-10Vdc signal.