available as options.
Cold Climate Locations
If the unit is operating in low ambient temperature, be sure to follow the instructions listed below.
1. A baffle plate installed on the airside of the unit is recommended to prevent exposure to snow in
winter.
2. In heavy snowfall areas, make sure the coil and fan will not be affected by the snow. Construct a
lateral canopy if necessary.
3. Deice before operating if the fan blades fail to rotate after long time standby in snow.
4. Flexible hoses must be installed to ensure effective condensation water drainage while operating.
Corrosion Locations
The unit is designed to withstand most of the climate conditions. If the unit is installed near the sea
where high levels of salt may shorten the life of the unit, make sure it is not exposed to sea winds
directly.
For any units being installed at the seashore, or where salt spray may hit the units, or where acid rain
is prevalent, please contact Johnson Controls.
ISOLATORS (OPTIONAL)
An optional set of vibration isolators can be supplied loose with each unit. When ordered, four (4)
isolators will be furnished if the unit is installed without pump kit. Two (2) additional isolators will be
required if pump kit is picked.
Identify the isolator, locate at the proper mounting point, and adjust per instructions.
COMPRESSOR MOUNTING
The compressors are mounted on four (4) rubber or steel isolators. The mounting bolts should not be
loosened or adjusted at installation of the unit.
CHILLED LIQUID PIPING
General
– When the unit(s) has been located in its final position, the unit water piping may be
connected. Normal installation precautions should be observed in order to receive maximum
operating efficiencies. Piping should be kept free of all foreign matter. All chilled water evaporator
piping must comply in all respects with local plumbing codes and ordinances.
Since elbows, tees and valves decrease pump capacity, all piping should be kept as straight and as
simple as possible. All piping must be supported independent of the unit.
Consideration should be given to compressor and control panel access when laying out water piping.
Routing the water piping too close to the unit could make compressor/ control panel servicing/
replacement difficult.
Hand stop valves should be installed in all lines to facilitate servicing.
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
