Frick QUANTUM HD UNITY - Figure 31: Evaporator Analog Board 1

QUANTUM™ HD UNITY SYSTEM CONTROLLER
MAINTENANCE
090.670-M (APR 2020)
Page 44
Figure 31: Evaporator analog board 1
CH24 – Evaporator Suction Temp.
CH22 – VFD Fan Speed
CH23 – Evaporator PressurE
CH21 – Relative Humidity (%)
CH20 – Ammonia Sensor
CH18 – Room Temperature
CH19 – User Defined Temp.
CH17 – Evaporator Entering Temp.
CH16 – Evaporator Suction Temp.
CH14 – VFD Fan Speed
CH15 – Evaporator Pressure
CH13 – Relative Humidity (%)
CH12 –
Ammonia Sensor
CH10 – Room Temperature
CH11 – User Defined Temp.
CH9 – Evaporator Entering Temp.
CH8 – Evaporator Suction Temp.
CH6 – VFD Fan Speed
CH7 – Evaporator Pressure
CH5 – Relative Humidity (%)
CH4 – Ammonia Sensor
CH2 – Room Temperature
CH3 – User Defined Temp.
CH1 – Evaporator Entering Temp.
OUTPUTS
ZONE AZONE BZONE C
CH8 – Auxiliary Output - P/I Control
CH4 –
Modulating Liq. Ctrl. Valve (Zone A)
CH7 – Auxiliary Output - P/I Control
CH3 – Fan VFD (Zone C)
CH6 –
Modulating Liq. Ctrl. Valve (Zone C)
CH2 – Fan VFD (Zone B)
CH5 –
Modulating Liq. Ctrl. Valve (Zone B)
CH1 – Fan VFD (Zone A)
COM +Tx/+Rx +24VDC-Tx/-Rx
SW1
PWR OK LED (D65)
Active LED (D64)
Tx LED (D62)
Rx LED (D63)
J33 Defaulted Pins 2-3