Service Manual

SiUS121502E Trial Operation
Trial Operation and Field Settings 183
3.2 FFQ Series
3.2.1 Checkpoints
To carry out test operation, check the following:

Check that the temperature setting of the remote controller is at the lowest level in cooling
operation or use test operation mode.

Go through the following checklist:
3.2.2 Test operation
BRC1E71/72/73
Note: The illustrations are for BRC1E72 as representative.
Checkpoints Cautions or warnings
Are all units securely installed? z Dangerous for turning over during storm
z Possible damage to pipe connections
Is the ground wire installed according to the applicable
local standard?
Dangerous if electric leakage occurs.
Are all air inlets and outlets of the indoor and outdoor units
unobstructed?
z
Poor cooling
z
Poor heating
Does the drain flow out smoothly? Water leakage
Is piping adequately heat-insulated? Water leakage
Have the connections been checked for refrigerant
leakage?
z Poor cooling
z Poor heating
z Stop
Is the power supply voltage conform to the specifications
on the name plate?
Incorrect operation
Are the cable sizes as specified and according to local
regulations?
Damage of cables
Are the remote controller signals received by the unit? No operation
Step Action Remote controller
Before test operation
1
Turn on the power supply more than 6 hours
before test operation.
2
Open the gas stop valve.
3
Open the liquid stop valve.
How to activate test operation
4
Press and hold the Cancel button for 4
seconds to enter the Service Settings menu.
5
Use the buttons to select Test Operation
and push the Menu/OK button.
6
Test Operation is displayed on the bottom of
the basic screen.
7
Push the On/Off button within 10 seconds to
start the test operation.
(R18827)
(R18828)