Unit Installation - Lennox eCOMFORT R32 GAC 035S Installation, Operating And Maintenance Manual

2.- INSTALLATION

2.7.- UNIT INSTALLATION

1. The eComfort R32 units could be installed outside or inside.
2. See the minimum clearance diagrams for access - air supply to the batteries in the heating section of the unit.
3. Assemble the unit on a solid and resistant base, preferably concrete. To prevent vibrations, the concrete base should not come into
contact with the building's foundations.
4. It is advisable to assemble the unit on shock absorbers (antivibration mountings).
5. During heating mode (heating pump coolers) ice forms in the coils. The defrost process is activated during heating mode in heat pump
units, when the outside temperature is low and the outdoor coil could become frozen. To melt the ice, the defrost function will switch
the unit to cooling operation for a short period. When the evaporation temperature starts to drop, a defrost period sets in to provide
sufficient heat transfer. During defrosting, the ice melts from the batteries. As a result, the ice contains water which must be removed.
.
WARNING
If the unit is exposed for long periods to installation conditions below 0ºC the water from defrost can freeze in the
base of the unit. This prevents drainage. Ice build up can occur preventing correct operation. For these conditions
contact customer service team.
6. The heat exchanger water flow during cooling must be the same as during heating.
7. The use of a water filter in the water circuit upstream of the heat exchanger is mandatory. These filters must remove all particles with
a diameter greater than 1 mm, and must be positioned within 1 meter of the inlet of the exchanger. They may be supplied as an option
by the manufacturer.
LACK OF FILTER AT THE INLET OF A PLATE HEAT EXCHANGER WILL MAKE WARRANTY VOID.
I
t is important to follow non exhaustive recommendations hereunder:
• The water pipes must not transmit any radial or axial force to the heat exchangers nor any vibration (Use flexible connections to
reduce the transmission of vibrations).
• Manual or automatic air bleeders must be installed at all high points in the circuit(s).
• Drain connections must be installed at all low points to allow the whole circuit to be drained.
• An expansion device must be installed to maintain pressure in the circuit(s) as well as a safety device
• Comply with the water inlet and outlet connections shown on the unit.
• Install thermometers in both the entering and leaving water connections.
• Install stop valves, close to the entering and leaving water connections.
• After testing for leaks, insulate all pipe work, to reduce thermal leaks and to prevent condensation.
• If the external water pipes are in an area, where the ambient temperature is likely to fall below 0°C, insulate the piping and add
an electric heater. As an option, the internal unit piping is protected.
• Ensure full earthling continuity
• Connection pipes must under no circumstances generate strain on the piping system of our units. To do this, appropriate means
of support and fastening must be used.
• Respect a sufficient number of supports for the piping according to their size and weight under operating conditions and to
design the piping to avoid a water hammer phenomenon.
8. Use water treating if necessary.
9. Location inside:
Air outlet
Air inllet
Installation manual / eCOMFORT R32-MIL166E-0222 - 09/2022
Air outlet duct (2)
Unit
Air inlet duct (1)
WARNING: These units use semi-flammable refrigerants and must be
executed correctly while observing safety rules, as specified in
corresponding safety standards such as, but not limited to EN 378.
They must comply with any and all applicable legislation and
regulations. Ensuring compliance remains the user's responsibility.
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