ICE EX04-18 Heat I&O Manual 06/2020 Rev.1
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Figure 5. DC Input Connection Interface
2.8 Installation Checklist
Use the following checklist when the electrical connections and the heat exchanger
installation are completed.
1. Check the packing list to ensure no parts are missing.
2. No apparent obstacles near the interior and exterior air flow passages.
3. The heat exchanger is vertically mounted and all the mounting bolts are tightened.
4. Drainpipe is clear of obstructions.
5. Power input is reliable and correctly connected.
6. Alarm output is securely connected.
7. The input voltage is within the acceptable range.
8. Fan runs freely, with no abnormal noise.
2.9 Startup
After completing the Installation Checklist, the heat exchanger is ready for operation.
Close the circuit breaker and the unit will automatically begin operating. When the
temperature inside the cabinet rises above the preset value, the external fan will increase
to maximum speed.
Chapter 3: Operation
3.1 Function
The heat exchanger factory settings may be different from the default setting;
The heat exchanger is automatically controlled by interior temperature of the cabinet,
the controller measures the interior return temperature, compares it with the setting
value, then adjust the inner loop or outer loop fan speed to achieve the most reasonable
energy-efficient state of operation.
3.2 Operating control mode
3.2.1 Cooling Control
After power is applied, the inner fan will delay start. When inner temperature is above
77ºF (25ºC) and the internal temperature is higher than outside temperature it stops
when the internal temperature is below 75ºF (24ºC).
Note:
The inner temperature is the temperature of return air heat exchanger cabinet.
