Control Panel Layout; Motor Protection Module - Daikin WGZ030DW Operating And Maintenance Manual

Control Panel Layout

Table 1, Typical Control Panel, 4-Compressor Unit
Microtech
Controller
(2) Circuit
Mechanical
Hi-Pressure
Switch Relays
(4) Compressor
Circuit Breakers
(4) Compressor
Contactors
Location for
Optional External
Overloads
NOTES:
1. Additional space provided in the upper right section for optional multiple point power connection and
optional circuit breakers.
2. Front door has a slot opening at the top for access to the MicroTech II controller for viewing display
and making keypad entries without opening the panel door.

Motor Protection Module

The motor protection system consists of an external control module, located on each compressor, motor
terminal box, connected to a series of thermistors located in the motor windings and the compressor
discharge port. If the windings experience an over-temperature condition or the discharge temperature is
excessive, the module will trip and shut off the compressor.
Disconnect the compressor three-phase power before removing the terminal box cover Removal of the
terminal box cover will expose the three-phase power connections. Contact with them can cause serious
injury or death..
10
Warning
!
WGZ030D through WGZ200D
(3) 120V/24V
Transformers
LineV/120V
Control
Transformer
Control
Transformer
Fuses, Primary
Control
Transformer Fuse,
Secondary
Optional
Disconnect
Switch
Grounding
Lug
OMM 1130-2