13.2 The Defrost Module
This factory supplied option provides a basic time initiated, time terminated defrost controller. It is
located on the left hand side of the electrical panel inside the top of the compressor compartment.
It includes a manual actuating button for the customer to override the initiation settings at any time.
This button also initiates defrost in the case when an iced-up call needs to be de-iced immediately.
Refer to Fig.20 where the main components have been identified.
Defrost Interval
Defrost Duration Switch
Manual Defrost Button
Remote Manual Defrost Button
Connector
8
Pin
Communication
Connector
( to E2 Board)
Fig.21 Defrost Module details
The two rotary switches (SW1 & SW2) are for setting the defrost interval between defrosts and
defrost duration respectively. The table below (Fig.21) conveys the valves for each setting of each
switch
.
Fig. 22 Defrost Module settings
SW1
Interval between Defrosts (hours)
SW2
Defrost Duration (minutes)
0
No Defrost
0
No Defrost
1
1
1
5
2
2
2
10
3
3
3
15
4
4
4
20
5
5
5
25
6
6
6
30
7
7
7
35
42
Summary of Contents for ZX
Page 8: ...Fig 4 The Defrost Module Fig 5 The Diagnostic Module now available without Buzzer 8 ...
Page 21: ...ZX200 300 400 Single Fan Units 21 ...
Page 22: ...ZX500 600 750 Dual Fan Units 22 ...
Page 43: ...Fig 23 Diagnostic Module and Defrost Module connected to the E2 Unit Controller 43 ...
Page 51: ...Addendum 17 2 ZX Wiring Diagram 51 ...
Page 52: ...Addendum 17 3 Capacity kW at 50Hz for Refrigerant R22 52 ...
Page 54: ...54 ...
