GENERAL
The complete shipment should be inspected for damage. Any damage, visible or concealed, should be reported immedi-
ately to the delivery man or driver. Any damage visible at the time of delivery should be noted on the shipment invoice.
These units are shipped completely assembled and wired. These units does not require any refrigerant tube installation
at the field. Units require external power, thermostat wiring, condensate drain piping and ducting as applicable.
Size of unit for an installation should be based on a heat gain calculation made according to applicable standards. Units
must also be installed in accordance with regulations of the "National Fire Protection Association" and local electrical
codes. Where local regulations vary with instruction furnished, installer should adhere to local standards.
Prepare your concrete pad or steel stand as applicable. Remove shipping protective covers and wooden crating and lift
unit from base and place in position with necessary applicable vibration isolators.
Equipment must be installed so as to allow for service access and air circulation in accordance with these instructions
and other Zamil publications for the specific equipment being installed.
LOCATION OF UNIT
When selecting the location for the unit, the following points should be kept in mind:
1. Provisions for a concrete slab which will allow for minimum clearance from building or structures
2. That the terrain allows for drainage away from the unit.
3. If the unit is to be roof mounted, inspect the roof for load bearing capacity. The roof should have sufficient structural
strength to carry the weight of the unit.
4. Availability of electric power.
5. Position the unit to provide for unrestricted air circulation and to prevent any possibility of air recirculation.
6. Check minimum clearances required for your unit, with regard to walls, or other obstructions.
7. Air cooled equipment should not be installed under low structural overhangs which can cause condenser air recircu-
lation or restriction.
8. Care should be taken to prevent air from other sources from entering condenser, if this air is at a high temperature.
WIRING
All wiring must comply with the "National Electric Code" and local electrical standards. The power supply, voltage,
frequency and phase must coincide with the unit nameplate.
Power wiring to the equipment must be adequately sized for maximum ampacity as shown on unit name plate. The unit
wiring diagram, completely illustrates the internal wiring and field connection needed for power supply and control wiring.
The power supply should be run through the sized shielded cable or rigid conduit and through a separate fused discon-
nect switch/circuit breaker. For control wiring, use approved thermostat wire (minimum 18 gauge). Never use telephone
wire for this purpose. A sized circuit breaker/fused disconnect switch should be located adjacent to the unit for safety &
servicing purposes.
Wiring connection to the unit must have insulation suitable for temperatures of a minimum of 60
0
C.
Minimum circuit ampacity for each model is shown on the name plate and product catalog. Equipment wiring diagram
should be examined and thoroughly understood before field wiring connections are made.
Power supply should be checked to be certain that supply voltage agrees with equipment nameplate. Serious damage to
compressors and motors can occur, if improper voltage is applied.
START-UP INSPECTION & CHECK LIST
After the installation is completed in all respect, the following points should be covered before the system is switched on
for operation.
1. Remove or loosen shipping retainers under motor compressors. Make sure the hold down nuts on spring mounted
compressors are not touching the compressor feet.
2. Make sure all electrical fasteners/connections are tight and clean.
3. All controls are set according to manufacturer's instructions (low & high pressure switch, pump down pressure switch,
fan cycling switch, etc...)
4. Make sure all valves are open (compressor suction & discharge service valves, liquid line, etc.).
5. Follow all the instructions from the warning tags and stickers.
INSTALLATION INSTRUCTIONS
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