Cooper & Hunter CHV-5S224SNMX, Service Manual

Page: 28 / 125

CONTROL 0 26 0
CHV
5 COM PACT MULTI VRF UNIT
SERVICE M ANUAL
4) Connect the 2-core twisted pair cable to terminal H1 and terminal H2. Tighten up the screws.
5) Set two-core into the groove at left side of wiring column, and then bundle panel and soleplate of wired
controller together.
Note: If the wire size of the selected communication line is too large, you can peel some sheath layer of
communication wire to satisfy installation requirements
2.2.3 Removal method
2.3 Engineering Test
1
）
Mater IDU Settings
In power-off status, press and hold the ―MODE‖ button for five seconds to set the IDU connected with the
current wired controller to master IDU.If the setting is successful, MASTER icon will be on.
2
）
User Parameter Query
Engineering Parameters can be queried in power-on of power-off status.
(1) Press and hold the ―FUNCTION‖ button for five seconds to enter the user parameter query interface. The
temperature area display ―C00‖ and ―CHECK‖ is on.
(2) Select a parameter code by pressing
― ∧ ‖or― ∨ ‖
(3) Press‖ENTER/CANCEL‖botton ro return to the upper-level menu till quitting parameter query.
The user parameter query list is as follows:
Paremeter
Code
Parameter Name
Parameter
Range
View Method
C00
Parameter setting
ingress
- -
C01
Project number query
of IDU and fautly
IDU loaciton
1-255
：
Project
number of
online IDU
Operation method:
In‖C01‖status,press ―MODE‖button to enter project
number query of IDU.Press―
∧
‖or―
∨
‖to switch the IDU
SN.
Display mode:
Temperature area:displays the fault of current IDU
Timer area:displays project number of current IDU
Special operations:
After users press the ―MODE‖button to enter project
number query, the buzzer of the IDU operated by the
wired controller will ring till users quit ―C01‖query or