Panasonic CU-5MX1SPP Manual De Instalación página 13

Turn on the switch to indoor unit(s).
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I The test run must be performed starting with cooling operation.
Start this operation about 8 minutes after turning on the indoor
unit and outdoor unit power.
NOTE Do not try to get started with the remote controller just
after turning on the power. The remote controller
shows 'UH' and the system fails to start.
When the outdoor temperature is below -5°C, perform
the testrun in heating mode.
Operation check - Temperature regulating operation check
1 Perform the cross wiring - cross piping check as described in
"Cautions on operation" attached on the rear of the switch box
cover.
2 Set the unit to " " mode using the cool/heat selector or the
indoor remote controller.
3 Press the " " button 4 times to set the unit to "TEST" mode
operation. ("TEST" is displayed) Pressing the "
5 times will make the unit return to its normal operation mode.
4 Within 10 minutes after having set the unit to test mode, press
the " " button to start the test operation. Check if the indoor and
outdoor units are operating normally. If, due to compressor liquid
compression, a knocking noise is heard, stop the unit
immediately and start it again after a while. The test run will be
stopped automatically after 30 minutes.
5 Press the " " button to stop the unit.
Perform normal operation. Refer to the operation manual of the
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corresponding indoor unit(s) for details.
- Check that cool air (or hot, in case of heating operation) is
blown from the indoor unit.
- Operate each indoor unit individually and check whether the
corresponding outdoor unit is running.
I Blinking of the remote controller operation lamp
means that an error occurred. The error code is
displayed in the liquid crystal display and the relation
between error codes and their meaning is shown in
"Cautions in servicing" attached to the indoor unit.
The compressor is protected by a guard timer and will
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not restart, not even if the " " button of a connected
indoor unit is pressed, before the guard timer setting
of 5 minutes elapsed.
Pump down operation cannot be executed because
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this would result in serious compressor damage.
How to operate stop valves
CU-5MX1 (See figure 9)
to open
1
Remove the cap (1) and turn the valve stem counterclockwise
with a screwdriver until the pin (2) comes in contact with the
stopper (3).
2 to close
Remove the cap and turn the valve stem clockwise with a
screwdriver until the pin comes in contact with the stopper.
CU-5~10MX1SPP
Urban Multi air conditioner
4PW12336-1C
NOTE I
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" button
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CU-8,10MX1 (See figure 10)
1 to open
Remove the cap (1) and turn the shaft (2) counterclockwise with
hexagon socket screw keys (JIS B 4648 nominal size 6 mm and
10 mm).
Turn it all the way until the shaft stops.
Tighten the cap firmly.
2 to close
Remove the cap and turn the shaft clockwise.
Tighten the shaft firmly until it reaches the sealed area (4) of the
body.
Tighten the cap firmly.
NOTE
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FLARE SOLDER CONNECTION TIGHTENING TORQUE
Pipe size
Ø9.5
Ø12.7
Ø19.1
When removing the flare nut (4), be sure to use
two spanners to the positions marked "
Tighten with a spanner and a torque wrench after
completion of pipe connections. Do never apply a
spanner or torque wrench on the positions
marked " ".
The refrigerant flow is indicated by "
Refer to the table at the end of this chapter for
tightening torques and dimensions of the flares.
When connecting a flare nut, apply ether or ester
oil on the flare area (both internal and external
face), and screw it with your hand a few times
first.
Take care not to damage the cap sealing portion (5).
Make sure to tighten the cap securely after valve
operation. (Tightening torque 19.6~24.5 Nm)
Use a charging hose with push rod when using
the service port (6).
Check for refrigerant gas leakage after tightening
the cap.
Make sure to tighten the service port cap securely
after work. (Tightening torque 9.8~14.7 Nm)
Make sure to apply ether oil or ester oil around the
flare portions (both inner and outer face) when
connecting flare nuts, and give 3 turns by hand
before applying spanners.
Make sure to keep stop valves open during
operation.
Refer to the table at the end of this chapter for
tightening torques and dimensions of the flares.
Be sure to use both, a spanner and a torque
wrench, when connecting or disconnecting pipes
to or from the unit.
When connecting a flare nut, apply ether or ester
oil on the flare area (both internal and external
face), and screw it with your hand a few times
first.
Use a charging hose with push rod when using
the service port (5).
Check for refrigerant gas leakage after tightening
the cap.
Make sure to keep stop valve open during
operation.
Tightening torque (Nm)
54~60
63~70
76.5~85
".
".
Installation manual
11