FireBird Enviroair 11kW, Installation & Operation Manual

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• Cap the end of the pipe when pipe is to be inserted
through a wall hole.
• Do not put pipes on the ground directly without a cap or vinyl
tape at the end of the pipe.
• If piping installation is not completed until next day or
over a longer period of time, braze off the ends of the
piping and charge with oxygen free nitrogen through a
Schrader valve type access fitting to prevent moisture
and particle contamination.
7.2.1 Refrigerant charge
The R410A refrigerant is factory charged in the outdoor unit.
7.2.2 Precautions in the event of gas refrigerant leaks
The installers and those responsible for drafting the
specifications are obliged to comply with local safety codes
and regulations in the case of refrigerant leakage.
CAUTION
• Check for refrigerant leakage in detail. If a large refrigerant
leakage occurred, it would cause difficulty with breathing or
harmful gases would occur if a fire were in the room.
• If the flare nut is tightened too hard, it may crack over time
and cause refrigerant leakage.
Maximum permitted concentration of HFCs
The refrigerant R410A (charged in the outdoor unit) is an
incombustible and non-toxic gas. However, if leakage occurs
and gas fills a room, it may cause suffocation.
The maximum permissible concentration of HFC gas according
to EN378-1 is:
Refrigerant Maximum permissible concentration (kg/m 3 )
R410A 0.44
7.2 Refrigerant Circuit
• It is advisable to insulate the water pipes, joints and
connections in order to avoid heat loss and dew condensation
on the surface of the pipes or accidental
injures due to excessive heat on piping surfaces.
• Do not use insulation material that contains NH3, as it can
damage copper pipe material and become a source
of future leakage.
• It is recommended to use flexible joints for the water piping
inlet and outlet in order to avoid vibration transmission.
• Water circuit must be performed and inspected by a licensed
technician and must comply with all relevant European and
national regulations.
• Proper water pipe inspection should be performed after
piping work to assure there is no water leakage in the space
heating circuit.
8. Drain Piping
When the base of the unit is temporarily used as a drain receiver
or the drain water in it is discharged, this drain boss is used to
connect the drain piping.
Model Applicable Model
DBS-26 Enviroair 7.5-16kW
Connecting procedure
1 Insert the rubber cap into the drain boss up to the
extruded portions.
2 Insert the boss into the unit base and turn approximately
40 degree counter-clockwise.
3 Size of the drain boss is 32 mm (O.D.).
4 A drain pipe should be field-supplied.
8.1 Water Drain Discharge Connection (Accessory)
NOTE
Do not use this drain boss set in a cold area because the drain
water should freeze. This drain boss is not sufficient to collect all
the drain water. If collecting drain water is completely required,
provide a drain-pan that is bigger than the unit base and install
it under the unit with drainage.