Carrier WeatherMaster 50HCQ04-12 Service And Maintenance Instructions page 35
Single package rooftop heat pump/electric heat with puron (r-410a) refrigerant
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J4
J15
Protocol Selector
*Remove
both for 0-5V
Board Power
J1
J13
J12
J20
SPT (temp Input)
SPT (common)
SPT (offset input)
Fig. 59 — RTU Open Control Module
J2
J5
J22
J17
J19
BACnet, Modbus, or N2
(LON connection J15)
35
(AO-1)
J3
J5
J11
DO-6
(Dehumidification)
DO-7
(Reversing Valve)
DO-8
(Power Exhaust)
J14
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Troubleshooting
