Specifications
-37-
INSTALLATION
1. Space required around units
300mm(min. clearance)
Condenser inlet
700mm(min. clearance)
Electrical
control circuit
and compressor
service
Condenser inlet
300mm(min. clearance)
1,000mm(min. clearance)
Evaporator coil, air filter
service
Condenser inlet
Condenser inlet
300mm(min. clearance)
Electrical
control circuit
and compressor
service
Condenser outlet
300mm(min.
clearance)
Condenser inlet
300mm(min.
clearance)
700mm(min. clearance)
300mm(min. clearance)
1,500mm(min. clearance)
Condenser outlet
1,000mm(min. clearance)
Evaporator coil, air filter
service
1,000mm(min. clearance)
Evaporator coil, air filter
service
1,500mm(min. clearance)
Condenser outlet
PRHG-8, 10 PRHG-15, 20
2. Installation of the unit
Roof curb
Roof curb
6-ø15
Unit mounting holes
4-ø15roof mounting holes
Unit
Roof deck
Seal with tar
All series of air conditioners are designed for outdoor installations and are to be placed on a slab or rooftop, however if the
air conditioner is to be installed in a plant room application, please contact your equipment supplier prior to installation.
Access for both service and installation must be provided to the compressors, control wiring and fans as shown below.
(1) Care must be taken to prevent recirculation air.
To stabilize compressor, condensing pressures it is
recommended that wherever possible the condenser air
inlet side be faced away from prevailing winds.
(2) For rooftop installation, the type of mounting base
depends on the roof construction.
A built-up roof may not support the weight of the unit and
so it may be necessary to support the unit by adding
structural members below it.
(3) The units are equipped with hoisting plates for rigging
and hoisting of the unit.
The hoisting plates are located on the top of the unit.
When hoisting the unit with a crane, spreader bars must
be used to prevent damage to side panels by the
supporting cables.
(1) The figure shows the use of the roof curb available for
mounting these units.
(2) The curb should be sealed and fixed to the roof by
weather stripping. A suggested means of sealing the unit
and roof curb is shown below.