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Si39-303
Installation
General Information
43
Ceiling Mounted
Cassette Type
(FXFQ-M Multi-
flow)
1. Rig drain piping
Note:
Lay pipes so as to ensure that drainage can occur with no problems.
Employ a pipe with either the same diameter or with the diameter larger (excluding the raising section) than
that of the connecting pipe (PVC pipe, nominal diameter 25 mm, outside diameter 32 mm).
Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air pockets from
forming.
If the drain hose cannot be sufficiently set on a slope, execute the drain raising piping.
To keep the drain hose from sagging, space hanging wires every 1 to 1.5 m.
1/100 gradient or more
1–1.5 m
Fig. 18
GOOD
Hanger bracket
Fig. 19
WRONG
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Use the attached drain hose (1) and clamp (2).
Insert the drain hose into the drain socket up to the base, and tighten the clamp securely within the portion
of a white tape of the hose-inserted tip. Tighten the clamp until the screw head is less than 4 mm from the
hose.
Wrap the attached sealing pad (10) over the clamp and drain hose to insulate.
Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leak-
age due to dew condensation.
Indoor drain pipe
Drain socket
<PRECAUTIONS FOR DRAIN RAISING PIPING>
Install the drain raising pipes at a height of less than 550 mm.
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Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit.
Clamp (2)
Tape (White)
Drain hose (1)
Fig. 20
Clamp (2)
Large sealing pad
(10)
(attached)
(attached)
≤
4 mm
Fig. 21
Ceiling slab
Clamp (attached) (2)
Drain raising pipe
Raising section
Drain hose (attached) (1)
≤
750
Hanger bracket
Adjustable
(
≤
550)
1 – 1.5 m
300 mm
200
Fig. 22
To ensure no excessive pressure is applied to the included drain hose (1), do not bend or twist when install-
ing. (This may cause leakage.)
If converging multiple drain pipes, install according to the procedure shown below.
Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.
≥
100 mm
T-joint converging drain pipes
Slope downwards at a gradient
of at least 1/100
Fig. 23
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Содержание VRV II Series
Страница 6: ...Si39 303 iv Table of Contents...
Страница 31: ...Si39 303 Installation General Information 25 Flaring Procedure...
Страница 124: ...Appendix Si39 303 118 General Information 3P114237A...
Страница 130: ...Appendix Si39 303 124 General Information BHFP22M135 Refer P 120 for Table 7 8 and 9 After connection piping...
Страница 140: ...Appendix Si39 303 134 General Information 7 10 Piping System Diagrams 7 10 1 Outdoor Unit RXYQ5MY1B...
Страница 141: ...Si39 303 Appendix General Information 135 RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B 4D040338A...
Страница 142: ...Appendix Si39 303 136 General Information RXYQ14MY1B RXYQ16MY1B 4D040339A...
Страница 144: ...Appendix Si39 303 138 General Information 7 11 Wiring Diagrams 7 11 1 Outdoor Unit RXYQ5MY1B...
Страница 145: ...Si39 303 Appendix General Information 139 RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B 3D038582...
Страница 146: ...Appendix Si39 303 140 General Information RXYQ14MY1B RXYQ16MY1B 3D038058...
Страница 147: ...Si39 303 Appendix General Information 141 7 11 2 Field Wiring RXYQ5 16MY1B 3D040746...
Страница 148: ...Appendix Si39 303 142 General Information RXYQ18 32MY1B 3D040747...
Страница 149: ...Si39 303 Appendix General Information 143 RXYQ34 48MY1B 3D040748...
Страница 158: ...Appendix Si39 303 152 General Information...
Страница 180: ...Refrigerant Piping Si39 303 174 Installation Manual...
Страница 226: ...Troubleshooting Si39 303 220 Operation Manual...