Haier MRV 5 Instructions D'installation page 20

INSTALLATION INSTRUCTIONS
Allowing Piping Length and Drop Between Indoor and Outdoor (cont.)
Pipe Length and Drop
Total Pipe Length
Outdoor to the farthest Actual Length
indoor length
Equivalent Length
The outdoor unit to the first branch pipe length
(main piping)
The first branch pipe to the farthest indoor unit
pipe length
The distance between the nearest indoor unit
and the farthest indoor
Height difference Outdoor unit above
between indoor and
Outdoor unit below
outdoor
Indoor machine maximum drop
The indoor unit and the nearest branch length
NOTE: Equivalent length of pipe is divided equivalent pipe length of 1.6ft (0.5m). THe indoor unit liquid and suction piping
should be equal length as possible to the branch fittings.
Branch Pipe
Branch Pipe Selection
Total Indoor Capacity kbtu/h(100W)
less than 114 (335)
more than114 (335), less than173 (506)
more than173 (506), less than 249 (730)
more than 249 (730)
Outdoor Unit Type
The main unit will choose the closest one to the 1st branch pipe.
NOTES:
1. Please double check the pipe sizes at the gather fitting when installing multiple OD units.
2. Please adjust the piping sizes connecting the outdoor units according to the installation instructions or the selection
software.
3. Install the gather pipes either vertically or horizontally and not at angles.
4. Always purge copper lines with dry nitrogen when blazing to prevent copper oxidation and damage to system
components.
Adhesive Side
Cut off pipe with the cutter
Cut off at the middle
20
Allowable Value ft(m)
less than or equal 3280 (1000)
less than or equal 722 (220)
less than or equal 853 (260)
less than or equal 427 (130)
less than or equal 295 (90)
less than or equal 131 (40)
H less than or equal 131(40)
H less than or equal 164(50)
h less than or equal 98 (30)
h less than or equal 32.8(10)
Model (optional)
FQG-B335A
FQG-B506A
FQG-B730A
FQG-B1350A
Prepare on field
Floor
Right
For Example
L1+L2+L3+L4+...+L24
L1+L2+L3+L6+L8
L1
L2+L3+L6+L8
L2+L3+L6+L8-L2-L5-L10
H
h
L4\L8\L9\L10\L11\L12\L14\L17\
L19\L20\L21\L23\L24
Seal the connection and wrap the heat
insulator with adhesive tape
Horizontal
Wrong
Remarks
Floor
31-5000572 Rev. 1