6
ANTIFREEZE PROTECTION
The chiller unit has several anti-freeze protection features:
1. Brazed plate heat exchanger anti-freeze
The BPHE has a strip heater around it to prevent water freezing inside
2. Auto mode
The chiller controller will force on the unit to the heat mode if the outdoor ambient air temperature
becomes too cold.
MAINTENANCE
I
n order to facilitate of the controller, a rocker switch is provided to power-off the supply to the PCB. However,
switching off the switch will not disconnect the main incoming power supply to the chiller unit.
Summary of Contents for A4AC100C
Page 19: ...17 5 2 Menu Structures Menu Structure Diagram for Chiller...
Page 140: ...138 9 WIRING DIAGRAMS MODEL A4AC AMAC20C...
Page 141: ...139 MODEL A4AC AMAC25 30C...
Page 143: ...141 MODEL A4AC AMAC80 100C WITH ISOLATED SWITCH...
Page 144: ...142 MODEL A4AC AMAC 120 150C WITH ISOLATED SWITCH...
Page 145: ...143 MODEL A4AC AMAC80 100C WITH TERMINAL BLOCK...
Page 146: ...144 MODEL A4AC AMAC 120 150C WITH TERMINAL BLOCK...
Page 147: ...145 MODEL AMAC 25 30CR...
Page 149: ...147 MODEL A4AC AMAC 80 100CR WITH ISOLATED SWITCH...
Page 150: ...148 MODEL A4AC AMAC 120 150CR WITH ISOLATED SWITCH...
Page 151: ...149 MODEL A4AC AMAC 80 100CR WITH TERMINAL BLOCK...
Page 152: ...150 MODEL A4AC AMAC 120 150CR WITH TERMINAL BLOCK...
Page 153: ...151 MODEL A5AC20 25CR...
