Contents
PUHY-YMC
Contents
Before getting installed
Safety precautions
Before installation and electric work
Before getting installed moved electrical work
Before starting the test run
Combination with indoor units
Confirmation of parts attached
Model Name Connecting pipe Elbow Shape
Outdoor unit configuration
Selection of installation site
Variable capacity unit Constant capacity unit
When there is an obstruction above the unit
Individual installation
When inlet air enters from right and left sides of unit
Space required around unit
Be very careful to carry product
Lifting method and weight of product
Collective installation and continu- ous installation
Example of collective installation
Installation of unit
Installation
Location of anchor bolt
60/61 dB A-weighted
Connecting direction for refrigerant piping
Down piping and down wiring precautions
Noise level
PUHY-400/500YMC
Snow and seasonal wind
Countermeasure to seasonal wind
PUHN-200/250YMC
Never perform a pump down. This will damage the compressor
Refrigerant piping installation
Areas of caution
Refrigerant piping system
+ α
Multiple line/header
Precautions concerning piping connection and valve operation
For variable capacity unit
Gas side Liquid side Oil balance side
Figure shows valve fully open
100 to 1000 to Tightening angle standard Pipe diameter mm
50 to 57.5 / 500 to
75 to 750 to
60 to
Oil balance pipe connection method
Distributor gas connection method
Part could be damaged if not cooled sufficiently
Restrictions on the posture for attaching joints
How to install branch pipe
Joint
Gram below
Evacuation
Airtight test and evacuation
Airtight test
No heat insulation must be provided for electric wires
Thermal insulation of refrigerant piping
Penetrations
Inner wall concealed Floor fireproofing
Electrical work
Constant capacity unit
Control box and connecting posi- tion of wiring
Variable capacity unit
Hole
For details, see item 11.3. Wiring transmission cables
Plate
Transmission booster optional
Wiring examples
Wiring transmission cables
Connecting a transmission booster
Name, code and possible unit connections
One remote control unit for each indoor unit
Wiring method, address setting
Remote control RC terminal block TB6
Within Address Unit Remote control operation Same as above
For details, see wire connection example C
Unit Range Setting method
Wiring Line
Same group to the remote control RC terminal block TB6
Main remote controller
Extended length and the length to the most remote unit
Capability Number of connected indoor units that can be
Wiring
Booster RP
Wiring of main power supply and equipment capacity
Checking before getting test run
Operation procedure
Test run
Test run method
How to cope with test run abnormality
Abnormality
Display at LED lighting blinking Remarks Flag Relay output
6603 Transmission error Transmission route Busy Error
Power on
Flag 8 always lights
Coping with remote controller abnormality
Following phenomena do not represent abnormality emergency
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