Mechanical checks
Control configuration: power on
Apply power to the chiller 8 h before start-up.
Changing the access level
There are three access levels in the HMI control:
• V: Viewer
• O: Operator
• S: Service
To change the access level, complete the following
steps:
1. Press the letter in the upper-right corner of the
HMI screen.
Ensure the suction and discharge service valves of each
refrigeration circuit are open.
2. Press
Change Access Level
.
3. Enter the password and press the enter key.
• Operator password: 9017
The access level indication in the upper-right cor-
ner changes accordingly.
Configuring the language
1. In access level O, press
HMI
in the menu.
2. Select
Language Setpoint
, select the appropriate
language, and press enter.
Figure 8:
Location of service isolation valve in suction and discharge side
PS
OS
OS
PS
BV2
Coil
Fan
EEV2
F1
YDSV
Service Ball Valve
Service Access Valve
Solenoid Valve
Electronic Expansion Valve
4 way Reversing Valve
Check Valve
Pressure Relief Valve
Pressure Switch
Filter
Oil Seperator
Supply
Return
BPHE 2
Receiver
YOSV
YESV
Compressor
Accumulator
F2
BV1
RV1/2
RV3/4
FWV
Supply
Return
BPHE 1
YASV
YCSV
CV1
CV2
Charging
BPHE3
CV3
CV4
EEV1
Quantech
10
Form QTH1-QSG1
Issue date: 12/20/2023
