Installation Manual
Start Up
3rd Party DX Heat Pump Start Up
1
Follow DX Heat Pump manufacturer instructions for heat pump refrigerant charging and start-up.
2
Plug in the 24 VDC power supply to provide power to the Pod. Switch the Pod to On by pressing the power button underneath the Pod. The power button will light up.
3
Using the thermostat, confirm that both heating and cooling calls cause the 3rd party heat pump to operate as expected.
4
Make a fan call using the thermostat, and then set the fan speed at ~400 CFM/ton for the design heating load. i.e. if the design load is 24 kBtu/hr, then find a fan speed as close to 800 CFM as possible.
- Following AHU manufacturer's instructions to set the fan speed. This may be by dip switches, taps on the controller board, or taps on the motor.
- Bryant F54: ships with the green fan wire on tap 1 of the motor. Move up to a higher tap to get ~400 CFM/ton
- Carrier FT4: ships with Continuous Fan tap on the controller board set to Low. Set to Med or High to get ~400 CFM/ton
- Carrier 40MBAB: 'G' fan speed is not configurable. If 'G' fan speed is < 400 CFM/ton of desired hydronic heating, refer to additional relay wiring diagram to use E/AUX fan speed. Adjust E/AUX fan speed using SW4 dipswitches.
- Carrier 40MUAA: 'G' fan speed is not configurable. If 'G' fan speed is < 400 CFM/ton of desired hydronic heating, refer to additional relay wiring diagram to use E/AUX fan speed. Adjust E/AUX fan speed using SW4 dipswitches.
- Daikin DMZT: use dip switches S12 and S13 to adjust continuous fan speed.
- Fujitsu: dip switches can be found on the thermostat interface unit (UTY-TTRZ1). Set the fan speed to "med" or "high" to get ~400 CFM/ton
- Mitsubishi: dip switches on the controller board can be changed to configure the available static pressure (0.3, 0.5, 0.8 in w.c.). Choose the appropriate setting to get ~400 CFM/ton. A PAC-US445CN-1 thermostat interface is required to enable control via 24VAC thermostats.
- Ruud/Rheem RH2TZ: ships with the green fan wire on tap 1 of the motor. Move up to a higher tap to get ~400 CFM/ton
- GE UUYxxZGDAB, (24, 36, 48, 60 sizes): Single speed AHU with 7 dipswitch setable fan speeds.