Test Running - York EVEREST R22 Installation Manual

ELECTRICAL SAFETY AND GAS LEAK CHECK
Electrical safety check
Perform the electric safe check after completing installation:
1. Insulated resistance
The insulated resistance must be more than 2M .
2. Grounding work
After finishing grounding work, measure the grounding resistance by visual detection
and grounding resistance tester. Make sure the grounding resistance is less than 4
3. Electrical leakage check (performing during test running)
When test operation, the serviceman can use the electroprobe and multimeter to
check the electrical leakage. Turn off the unit immediately if leakage happens.
Check and find out the solution ways until the unit operate properly.
Gas leak check
1. Soap water method:
Do a leak test of all joints of the tubing(both
indoor and outdoor) and both gas and liquid
side service valves. Bubbles indicate a leak.
2. Leak detector
Use the leak detector to check for leakage.
CAUTION
A: Lo packed valve B: Hi packed valve
C and D are ends of indoor unit connection.

TEST RUNNING

Perform test running after completing gas leak and electrical safety check.
The test running time should last more than 30 minutes.
1. Open the panel and lift the panel up to an angle which remains fixed. Do not lift the
panel any further when it stops with a click sound.
2. Press the manual control button twice until the operating indicator lights up, the unit
will operate on Forced Cool mode.
3. Check if all the functions works well during test running. Especially check whether
the drainage of indoor unit is smooth or not.
4. Press the manual switch button again
indicator turns dark and the unit stops operating.
AUTO/ COOL
Manual control
Button
after finishing the test running
Indoor unit
D C
check point
Cover
B A
Outdoor unit
check point
Fig.25
. The operating
Test running
.
13