Panasonic 2WAY Multi - Page 144

V–25
5) Force valve opening setting (Level 2)... Used for evacuation, etc.
Display :

Rejection conditions : Forced cooling test run in progress, forced heating test run in progress, bypass valve
being closed
Operating method : Press the SET (S007) key for one second while forced valve opening is not set.
(TEST/WARNING LED light)
Operation details : Indoor unit electric valve, outdoor unit electric valve 1, outdoor unit electric valve 2,
liquid valve and bypass valve fully open.
Forced setting in progress display (TEST/WARNING LED light) is shown during
this time.
Releasing method : Press the SET (S007) key for one second in forced valve open setting mode.
The forced setting in progress display will be canceled at this time, returning to
forced setting select operation. (TEST/WARNING LED off)
6) Force water circuit setting (Level 2)... Used for cooling water system air discharging, etc.
Display :

Rejection conditions : None
Operating method : Press the SET (S007) key for one second when the forced water circuit is not set.
(TEST/WARNING LED light)
Operation details : Coolant pump operating.
The coolant electric 3-way valve repeats a cycle of 50 steps for 3 minutes and then
1950 steps for 1 minute and 16 seconds.
The hot water electric 3-way valve repeats a cycle of 1950 steps for 30 seconds, 50
steps for 3 minutes, and 1950 steps for 46 seconds.
Forced setting in progress display (TEST/WARNING LED light) is shown during
this time.
Releasing method : Press the SET (S007) key for one second in forced water circuit mode.
The forced setting in progress display will be canceled at this time, returning to
forced setting select operation. (TEST/WARNING LED off)
7) Forced bypass valve closing setting (Level 2) ...Used for pump down, etc.
Display :

Rejection conditions : Valve is open.
Operating method : Press the SET key for one second without forced bypass valve closing being set. (The
TEST/WARNING LED will be illuminated.)
Operation details : Fully close the bypass valve. Perform the necessary operations on the liquid valve,
the indoor and indoor units’ expansion valves, and the outdoor unit’s fan pump down.
The forced setting in progress message will be displayed during this (the TEST/
WARNING LED will be illuminated.)
Release method : Press the SET key for one second while the forced bypass valve is closed.
The forced setting in progress message will be cleared (the TEST/WARNING LED
will be extinguished) and the display will return to the forced setting selection
operation.
8) Coolant air discharge mode (level 2)... Used for coolant air discharge.
* Be sure to set up the air discharge tool. If the air discharge is not enough, perform this control operation
again and then check to make sure the air has been discharged.
Display :

Rejection conditions : Test run in progress, automatic addressing in progress, stopping due to abnormality
Operating method : When the coolant air discharge mode is not set, press the SET (S007) key for one
second. (TEST/WARNING LED light)
Operation details : Operate the coolant pump, coolant 3-way electric valve, and hot water 3-way electric
valve to discharge air.
* During operation in air discharge mode, coolant pump, coolant 3-way electric
valve, and hot water 3-way electric valve are controlled automatically to discharge
air.
Forced setting in progress display (TEST/WARNING LED light) is shown during
this time.
Releasing method : Automatic operation is canceled.
The forced setting in progress display will be canceled. (TEST/WARNING LED off)
GHPtroubleshooting.indbV‒25GHPtroubleshooting.indbV‒25 2012/11/2611:20:202012/11/2611:20:20