17
ICE CFA1120A-3360A & CGA3180A I&O Manual 03/2021 Rev.5
Address
DIP Switch 1
DIP Switch 2
DIP Switch 3
DIP Switch 4
0
[Local Control]
OFF
OFF
OFF
OFF
1
OFF
OFF
OFF
ON
2
OFF
OFF
ON
OFF
3
OFF
OFF
ON
ON
4
OFF
ON
OFF
OFF
5
OFF
ON
OFF
ON
6
OFF
ON
ON
OFF
7
OFF
ON
ON
ON
8
ON
OFF
OFF
OFF
9
ON
OFF
OFF
ON
10
ON
OFF
ON
OFF
11
ON
OFF
ON
ON
12
ON
ON
OFF
OFF
13
ON
ON
OFF
ON
14
ON
ON
ON
OFF
15
ON
ON
ON
ON
Table 5. MODBUS Network Address DIP Swith Positions
2.4 Sequence of Operation
IMPORTANT
All equipment should go through the recommended commissioning/start up sequence
to ensure safety and system reliability. This document is only valid if the system is
used as intended.
This section defines the manner and method of control of the HVAC system. It will cover the
following operations and protections.
1.0 Blower Operation
2.0 Cooling Operation
2.1 Mechanical Cooling
2.1.1 Partial Capacity - 50-60%
2.1.2 Partial Capacity - 50%
2.1.3 Full Capacity
3.0 Heating
3.1 Electric Heat
4.0 Dehumidification
4.1 Independent Reheat Output
5.0 Refrigeration Protection
5.1 High Pressure Lockout
5.2 Low Pressure Lockout
5.3 Low Voltage
5.4 Anti-short Cycle
6.0 Additional Features
6.1 MODBUS communication
6.2 Modulating Head Pressure Control
6.3 Freeze Stat Operation
6.4 Onboard Thermostat
