642461
18
Zoom out
Zoom in
Previous page
1/20
Next page
12 English
Refrigerant Piping Work
2. Refrigerant piping
CAUTION
Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)
Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the torque wrenches.
2-1.
Caution on piping handling
1) Protect the open end of the pipe against dust and moisture.
2) All pipe bends should be as gentle as possible. Use a pipe bender
for bending.
2-2.
Selection of copper and heat insulation materials
When using commercial copper pipes and fittings, observe the following:
1) Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052W/mK (0.035 to 0.045kcal/mh°C)
Refrigerant gas pipe’s surface temperature reaches 110°C max.
Choose heat insulation materials that will withstand this temperature.
2) Be sure to insulate both the gas and liquid piping and to provide insulation
dimensions as below.
3) Use separate thermal insulation for gas and liquid refrigerant pipes.
Gas side Liquid side
Gas pipe thermal
insulation
Liquid pipe thermal
insulation
O.D. 9.5mm O.D. 6.4mm I.D. 12-15mm I.D. 8-10mm
Minimum bend radius Thickness 10mm Min.
30mm or more
Thickness 0.8mm (C1220T-O)
Do not apply refrigeration
oil to the outer surface.
Flare nut
Apply refrigeration oil to
the inner surface of the
flare.
Do not apply refrigeration oil to
the flare nut to avoid tightening
with excessive torque.
[Apply oil]
Piping union
Flare nut
Spanner
[Tighten]
1/4 inch
3/8 inch
Torque wrench
Flare nut tightening torque
Gas side
32.7-39.9N • m
(330-407kgf • cm)
14.2-17.2N • m
(144-175kgf • cm)
Liquid side
Wall
If no flare cap is
available, cover the
flare mouth with
tape to keep dirt
or water out.
Be sure to
place a cap.
Rain
Gas pipe
Inter-unit wire
Liquid pipe
Drain hose
Finishing tape
Gas pipe
insulation
Liquid pipe
insulation
18


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Daikin CTXS15K3V1B at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Daikin CTXS15K3V1B in the language / languages: English as an attachment in your email.

The manual is 2,4 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Daikin CTXS15K3V1B

Daikin CTXS15K3V1B User Manual - English - 44 pages

Daikin CTXS15K3V1B User Manual - German - 44 pages

Daikin CTXS15K3V1B Installation Guide - German - 24 pages

Daikin CTXS15K3V1B Installation Guide - Dutch - 20 pages

Daikin CTXS15K3V1B User Manual - Dutch - 44 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info