FEATURES
TC-16001-rev.5
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Flexibility of Facility Design
The piping can be designed and constructed up to a maximum piping length of 492ft. (150m).
1
Piping length: 492ft. (150m) *1
(Equivalent Length: 623ft. (190m))
2
Height difference between Outdoor Unit and Indoor Unit
Outdoor Unit is higher: 164ft. (50m)
Outdoor Unit is lower: 131ft. (40m)
3
Height difference between Indoor Units: 49ft. (15m)
4
Maximum length after branch
between 1st branch and each Indoor Unit: 131ft. (40m)
5
Maximum length after branch
between each branch and each Indoor Unit: 131ft. (40m)
Total Piping Length: 984ft. (300m) *1, *2
NOTE:
For details of piping restriction, refer to Section 2.14.1 “Piping Work Conditions”.
*1: When operating the outdoor unit in cold areas with temperatures of 14
o
F (-10
o
C), or under high heating
load conditions,the total piping length should be less than 310ft (95m) and the maximum piping length
(actual length) should be less than 246ft (75m).
*2: Total piping length may be restricted by the maximum additional refrigerant charge.
Field additional charge should not exceed the maximum additional refrigerant charge (table below).
< Max. Additional Refrigerant Charge Quantity Allowed >
Outdoor Unit Capacity (MBH) 36 - 60
Max. Additional Refrigerant Charge: lbs (kg) 18.5 (8.4)
Regarding additional refrigerant charge, refer to Section 2.16 “Additional Refrigerant Charge
Calculation”.
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