14 Installation Manual 2014 - Riv 2
Refrigeration Installation.
Warnings:
This unit must be installed to conform with all relevant local standards and regulations by
suitably qualified engineers.
When brazing the pipe always use OFN.
This unit is only suitable for R410A Refrigerant.
This product contains fluorinated greenhouse gasses covered by the Kyoto Protocol.
Do not vent gasses into atmosphere. Please ensure all pipework is lagged in accordance
with current refrigeration standard.
Precautions should be taken to prevent ingress of dirt etc into External and Heat Pump
pipework. Failure to do so can cause Heat Pump failure.
All systems are pre-charged to 5m
Heat pump system refrigerant capacities are as follows:
Unit Size LC 07 LC 10 LC 12 LC 15
R 410 A 1.8 kg 2.0 kg 2.8 kg 3.0 kg
Please note: If the maximum pipe runs shown below are exceeded an extra refrigerant
charge is required as follows:
Refrigeration piping specification
LC 07 LC 10 LC 12 LC 15
Maximum allowable piping length between
out-door unit and indoor unit
15m 20m 20m 25m
Maximum allowable height difference between
outdoor unit and indoor unit
5m 8m 10m 15m
Additional refrigerant required for refrigerant
pipe exceeding 5 m in length
35 g/m 65 g/m 65 g/m 65 g/m
Suction Pipe Size 12.7mm (1/2”) 15.88mm (5/8”) 19.05mm (3/4”) 19.05mm (3/4”)
Liquid Pipe Size 6.35mm (1/4”) 9.52mm (3/8”) 9.52mm (3/8”) 9.52mm (3/8”)
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