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6.2. Additional Refrigerant Charging
• Refrigerant charge is only in the outdoor unit prior to shipment.
NOTICE:
• Outdoor unit has been pre-charged with refrigerant. The refrigerant charge is not included in the
indoor unit and the refrigerant pipe.
• The amount of the additional refrigerant charge is dependent on the diameter and length of the
liquid refrigerant pipe which is determined by the actual field installation requirement.
• Record the additional refrigerant charge for future maintenance.
• Calculation of the Additional Refrigerant Charge
• (Σ Length of Liquid Pipeφ9.52×54+Σ Length of Liquid Pipeφ6.35×22)-880
• The maximum additional refrigerant charge value is 800g.
• If the calculated value exceeds 800g, the additional refrigerant charge should be 800g
• If the calculated value is less than 800g, the additional refrigerant charge is the calculated
value.
13 23 50 | lennoxaus.com.au
LENNOX MULTI SPLIT INVERTER
Outdoor Unit
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