Test Run - gledhill BMA 180 HP-DEM Installation & Servicing Instructions Manual

ECODAN AIR SOURCE HEAT PUMP

7. Test run

Before test run
After installation works are completed, check if there is no refrigerant leak-
age, no looseness in the power supply or control wiring, no wrong polarity,
and no disconnection of one phase in the supply.
Use a 500-volt megohmmeter to check that the resistance between the
power supply terminals and ground is at least 1.0M .
Warning:
Do not use the air to water heat pump if the insulation resistance is less than
1.0M .
Insulation resistance
When installed the power source to the unit has been cut for an extended period,
the insulation resistance may drop below 1 M due to the accumulation of refriger-
ant within the compressor. This is not a malfunction. Perform the following proce-
dures.
1. Remove the wires from the compressor and measure the insulation resistance of
the compressor.
2. If the insulation resistance is below 1 M , the compressor may be faulty or sim-
ply the accumulation of refrigerant in the compressor makes the resistance drop.
This product is designed and intended for use in the residential,
The product at hand is
based on the following
EU regulations:
Please be sure to put the contact address/telephone number on
BH79D067H01
6
commercial and light-industrial environment.
• Low Voltage Directive 2006/95/ EC
• Electromagnetic Compatibility Directive 89/
336/ EEC
this manual before handing it to the customer.
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Page 42
3. After connecting the wires to the compressor, the compressor starts to warm
up once power is supplied. After supplying power for the times indicated below,
measure the insulation resistance again.
• The insulation resistance drops due to the accumulation of refrigerant in the
compressor. The resistance will rise above 1 M
warmed up for four hours.
(The necessary time to warm up the compressor varies according to atmo-
spheric conditions and refrigerant accumulation.)
• If the refrigerant accumulates within the compressor, the compressor must be
warmed up at least 12 hours before starting the operation to prevent break-
down.
4. If the insulation resistance rises above 1 M , the compressor is not faulty.
Caution:
• The compressor does not operate if the power supply phase connection is
incorrect.
• Turn on the power at least 12 hours before starting operation.
- Starting operation immediately after turning on the main power switch can result
in severe damage to internal parts. Keep the power switch turned on during the
operating period.
after the compressor is
Printed in Japan