Water Connections - Lennox WA Series Installation, Operating And Maintenance

CLEARANCES DRAWINGS
For more details, please consult our Application Guides or the drawings supplied with the unit.
ECOLOGIC range
> 3 meters
For any air cooled unit, it is necessary to have a minimum distance between air coil and any obstacle of 1,5
meters.
For any chiller a minimum distance of 1 meter is required for the good opening and servicing of the electrical
box.

3.4 - WATER CONNECTIONS

3.4.1 - Water connections - Evaporator/Condenser
The water circulating pump will be preferably installed upstream so that the evaporator/condenser will be subjected to
positive pressure. Entering and leaving water connections are indicated on the certified drawing sent with the unit or
shown in the sales brochure.
The water pipes connected to the unit must not transmit any radial or axial force to the heat exchangers nor any
vibration.
It is important to follow non exhaustive recommendations hereunder:
Comply with the water inlet and outlet connections shown on the unit.
Install manual or automatic air purge valves at all high points in the circuit.
Install a safety valve as well as an expansion tank to maintain the circuit pressure. This option may be
included inside the unit.
Install thermometers in both the entering and leaving water connections.
Install drain connections at all low points to allow the whole circuit to be drained.
Install stop valves, close to the entering and leaving water connections.
Use flexible connections to reduce the transmission of vibrations.
After testing for leaks, Insulate all pipe work, to reduce thermal leaks and to prevent condensation.
Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 1106-E
2 meters
2 meters
Not recommended
Unit with screw compressor
OVERHEAD OBSTRUCTIONS ARE NOT PERMITTED
Not allowed
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