FORM NO.:6U6K-B01E-NB-EN
JOHNSON CONTROLS
96
C. PANEL CHECKS
(POWER ON - BOTH UNIT SWITCH OFF)
HMI
Display Language
Date and Time
SYSTEM SETPOINTS
Unit Type
Operating Mode
Cool RT Setpoint
Heat RT Setpoint
Cool LT Setpoint
Heat LT Setpoint
Low Sound Mode
Cooling Control Select
Heating Control Select
Unit Quantity
BAS Modbus Address
Mode Control Select
ON/OFF Control Select
Memory In Power Off or On/Off
Cooling Control Select
SYSTEM
** Chiller Return Temperature
** Chiller Leaving Temperature
** Ambient Temperature
UNIT
** Software Version A
** Software Version B
Ckt1 Fan Motor Fault
Ckt2 Fan Motor Fault
Ckt1 HPS and Comp.1/2 Overload
Ckt1 LPS
Chiller WFS
Cool/Heat Switch
ON/OFF Switch
* External Lock
Power Protector
Ckt2 HPS and Comp1/2 Overload
Ckt2 LPS
Unit WFS
Total # of Compressors
Number of Fans/System
* Unit/Sys Voltage
** Unit ID
* Not on all models. ** Viewable only.
1.Apply 3-phase power and verify its value.
Voltage imbalance should be no more than 2%
of the average voltage. ...................................
□
2.Apply 400VAC and verify its value on the
terminal block in the Power Panel. Make the
measurement between terminals. The voltage
should be /- 10%. ...........................
□
3.Check for the communications between
control panel, HMI, fan and VSD driver. Make
sure no fault displays occur. ...........................
□
4.Access into Service level to program/verify the
Setpoints, and record the values in the table on
the right. .........................................................
□
5.Cycle each condenser fan manually to ensure
proper rotation. ................................................
□
6.Place the Unit Switch in the control panel to
the "ON" position and startup the unit through
HMI. As each compressor cycles on, ensure that
the discharge pressure rises and the suction
pressure decreases. If this does not occur, the
compressor being tested is operating in the
reverse direction and must be corrected.
.........................................................................
□
7.Continuously detect the suction pressure to
ensure the EEVs are working properly.
.........................................................................
□
8.Verify the reverse valves in heating mode.
Ensure that the Coil Temperature is below
Ambient Temperature......................................
□
The liquid setpoint may need to be
temporarily lowered (in cooling
mode) or elevated (in heating mode)
to ensure all compressors cycle
"ON".
This unit uses scroll compressors
which can only operate in one
direction. Fail ure to observe this
will lead to compressor failure.
SECTION 6 – COMMISSIONING
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
