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Indoor coils are supplied with a nitrogen holding charge ranging from 400kPa to 700kPa
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Connect a suitable pressure gauge to the indoor coil valve to ensure the internal pressure is at least 400kPa
•
If the measured pressure is less than 400kPa, check and if necessary repair any leaks found before proceeding
•
Remove the nitrogen holding charge by connecting a charging line with valve depressor
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Sweat off the liquid & suction pipe blanking plates and proceed to pipe up in line with the good piping practices
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Some heaters may require a transition to modify its starting collar (pop) size to suit the inlet pop size of the ICE
indoor coil. DO NOT REDUCE POP SIZES ON INDOOR COIL or HEATER
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Ensure minimum specified air quantity requirement passes through the ICE cooling coil at all times
•
Ductwork and fittings must be sized to handle the total cooling airflow through the system on either whole
home or zoned basis
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If the Brivis Heater requires a remote thermistor installed in the supply air ductwork, position it in the supply air
starting collar (discharge pop) of the cooling coil (see Section 4.5)
4.1
LOCATION
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Choose a location that is suitable for refrigeration piping and condensate drainage
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Allow adequate provision is made for service access
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Indoor coil unit is not weatherproof and should be installed so that there is no chance of direct sunlight, water
or moisture coming into contact with the outer casing
•
Where the unit is installed in the roof or ceiling space ensure the building structure is capable of supporting the
unit's weight – do not suspend unit from support handles
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Brivis ICE indoor units shall be installed only downstream and at least 1m distance from heater's main supply
air outlet and always before the first duct branch-take-off fitting
•
Never put the Indoor coil in the Return Air part of the duct system, this may result in condensation forming in
the Heater, causing corrosion and damage to vital components
•
Ensure a minimum of 1m, or preferably 2½ times the duct diameter of straight ductwork, is installed immediately
downstream of the indoor coil unit before any divergence or branch-take-offs occur. Failure to do so may
compromise airflow, system performance and reliability
4.2
CONDENSATE DRAIN / SAFETY TRAY
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A non-flexible drainpipe shall be installed for the primary condensate run-off with a continuous downward
grade away from the unit of not less than 1:100
•
When the coil is installed under the floor, in a roof or ceiling space, an additional field-supplied Safety Drain
Tray shall be installed under the indoor unit
•
Safety Tray must also be separately drained, arranged to terminate in a position where the home owner can
see if water is dripping from the outlet. Please instruct the end user to call their Installer or Brivis Service should
they notice water dripping from the Safety Tray drain outlet
4.3
MINIMUM SERVICE ACCESS
For servicing, a minimum clearance of 600mm must be provided in front of the access panel side of the unit for its
entire length. Refer to "Figure 8. Indoor Service Clearances" on page 38.
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Where installed on a platform in the roof space, the platform should also extend 600mm out in front of the
access panel side of the unit for its entire length
•
A 600mm wide platform is required to connect between the indoor unit and the access opening or the ducted
heating unit for the purpose of access
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Adequate lighting should be installed, such as permanent artificial lighting with switch located at roof access
opening or sub-floor access point
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Duct work should not be installed across the platform preventing safe access
Brivis
4. INDOOR COIL INSTALLATION
37
ICE Fixed Speed OIM
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