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Si21-205
Field Piping and Wiring
Field Piping and Wiring
37
•
Make absolutely sure to execute heat insulation works on the pipe-connecting section after
checking gas leakage by thoroughly studying the following figure and using the attached
heat insulating materials for fitting (8) and (9). (Fasten both ends with the clamps (4).)
(Refer to Fig. 16)
•
Wrap the sealing pad (11) only around the insulation for the joints on the gas piping side.
(Refer to Fig. 16)
Caution
Be sure to insulate any field piping all the way to the piping connection inside the unit. Any
exposed piping may cause condensation or burns if touched.
1.2.2 Drain Piping Work For FFQ Model
(1) Carry out the drain piping
•
Lay pipes so as to ensure that drainage can occur with 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 20 mm,
outside diameter 26 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, refer to PRECAUTIONS FOR DRAIN
RAISING PIPING on page 38.
•
To keep the drain hose from sagging, space hanger bracket every 1 to 1.5 m.
•
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 gray tape of the hose-inserted tip. Tighten the clamp until the screw
head is less than 4 mm from the hose.
•
Make sure that heat insulation work is executed on the following 2 spots to prevent any
possible water leakage due to dew condensation.
•
Indoor drain pipe
Small sealing pad
(attached) (11)
(Wrap the piping union
with the sealing pad.)
Insulation for fitting
(attached) (9)
Insulation for fitting (attached) (8)
(for gas pipe)
(for liquid pipe)
Gas piping
Liquid piping
Clamp (4)
(Big 4)
Fig. 16
(attached)
Hanger bracket
GOOD
WRONG
Fig. 17
Fig. 18
WRONG
gradient or more
1/100
Summary of Contents for Sky Air B-Series R-410A
Page 7: ...Si21 205 vi Table of Contents ...
Page 15: ...Models Si21 205 4 Model Name and Power Supply ...
Page 16: ...Si21 205 Functions 5 Part 2 Functions 1 List of Functions 6 ...
Page 35: ...Wireless Remote Controller Si21 205 24 Remote Controller ...
Page 79: ...Settings Concerning Maintenance Si21 205 68 Field Setting Detail of PCB 2 ...
Page 83: ...Maintenance Mode Setting Si21 205 72 Field Setting ...
Page 239: ...Troubleshooting for Outdoor Unit 50 60 class Si21 205 228 Troubleshooting ...
Page 321: ...Outdoor Unit 50 60 class Si21 205 310 Removal Procedure ...