Test Operation & Troubleshooting & Maintenance; Precheck; Check For Wiring; Check For The Water System - Sinclair S therm Series Service Manual

TEST OPERATION & TROUBLESHOOTING & MAINTENANCE

1 Precheck

1.1 Check for Wiring

• Do not check for the power supply unless proper checkout equipment has prepared and preventive measures
have been taken, otherwise it would lead to severe injury.
(1) Are sizes of connection lines and the air switch proper?
(2) Does wiring comply with relative standards and electric codes?
(3) Is there any incorrect wiring?
(4) Does each contact work properly?
(5) Is the power supply and insulation proper?
(6) Are initial set points of control and protective elements satisfied?

1.2 Check for the Water System

(1) Are water inlet and outlet directions correct?
(2) Is the water piping cleaned? Are there foreign matters at the pipe joints? Is the water quality satisfied?
(3) Is insulation of water pipes in good condition?
(4) Does exhaust valve of the water system work properly?
(5) Instructions for Water Makeup and Air Removal

1.3 Check for the Communication System

When the unit is powered on, check for the communication system, including: communication between AP1 and
AP2, between the wired controller and the main board. When there is unusual communication, this error will be
displayed at the wired controller. Then, check out the cause according to the displayed error. See the figure below
for wiring of the communication system.

1.4 Trial Run

Start the unit when there is no any problem for wiring and piping. After startup, check for the electrostatic
expansion valve, water pump, fan, and compressor to see if they work normally. When there is any error, solve it
according to the troubleshooting flowchart covered in this manual. However, if the troubleshooting flowchart is still
unhelpful, please contact Sinclair sales distributor.

2 Error Code List

No.
1 Ambient temperature sensor error
2 Defrosting temperature sensor error
3 Discharge temperature sensor error
4 Suction temperature sensor error
5 Economizer inlet temperature sensor
6 Economizer outlet temperature sensor
7 Fan error
8 High pressure protection
9 Low pressure protection
10 High discharge protection
11 Capacity DIP switch error
Communication error between the outdoor and indoor main
12
boards
Communication error between the outdoor main board and
13
the drive board
Full Name
NOTE
Displayed Name
Ambient sensor
Defrost sensor
Discharge sensor
Suction sensor
Econ. in sens.
Econ. out sens.
Outdoor fan
High pressure
Low pressure
Hi-discharge
Capacity DIP
ODU-IDU Com.
Drive-main com.
140
Error Code
F4
d6
F7
F5
F2
F6
EF
E1
E3
E4
c5
E6
P6