Rectorseal NoKink Installation Manual

Flexible refrigerant
line connector.

7/8"

3/4"

5/8"

1/2"

1/4"

3/8"

• Eliminates kinking of copper refrigerant tubing
when wall-mounting mini-split evaporators.

• 3" and 6' lengths • Easy aring • Quick connection

Code Description Qty.

66731 1/4" x 3' flex hose 4
66733 3/8" x 3' flex hose 4
66737 1/2" x 3' flex hose 4
66735 5/8" x 3' flex hose 4
66732 3/4" x 3' flex hose 4
66734 7/8" x 3' flex hose 4

68231 1/4" x 6' flex hose 4
68233 3/8" x 6' flex hose 4
68235 5/8" x 6' flex hose 4
68237 1/2" x 6' flex hose 4

Equivalent Length Chart

Product

Code

NoKink

Dia/Length

Equivalent Length

of copper tubing

66731 1/4" x 3' 7.7' (EL)
66733 3/8" x 3' 7.9' (EL)
66737 1/2" x 3' 5.1' (EL)
66735 5/8" x 3' 3.7' (EL)
66732 3/4" x 3' 4.6' (EL)
66734 7/8" x 3' 5' (EL)

68231 1/4" x 6' 12' (EL)
68233 3/8" x 6' 10.1' (EL)
68237 1/2" x 6' 10.1' (EL)
68235 5/8" x 6' 8.4' (EL)

RectorSeal NoKink

Flexible mini-split refrigerant line connector

FEATURES

• Eliminates kinking of
refrigerant line • Stainless
steel internal piping and
jacketing • 3" copper stubs

allow for easy aring and

quick connections

INSTALLATION INSTRUCTIONS

Application

• Corrugated stainless steel flexible piping, protected with
woven stainless steel jacketing, connects evaporator units to linesets
quickly and easily • Eliminate kinks and refrigerant leaks • Allows for
ease of future maintenance • UL listed for R410A • Available in both
36" and 72" overall length 3" copper stub length 10 sizes available

NOTE: Insulate per local code.

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(1) Attach the RectorSeal NoKink

connector to the refrigerant
line in the mini-split evaporator unit using either silver solder or
flaring. Warning: The excessive heat during soldering or brazing

could damage the NoKink hose and cause a leak. A heat blocking

product, such as RectorShield or Hot Block, shall be used during
soldering or brazing to protect NoKink hoses. (2) Pull the in-wall
copper refrigerant line through wall opening and attach it to the
other end of the NoKink connector. (3) Feed the in-wall copper
refrigerant line and flexible NoKink connector back up into the
wall opening, and mount the evaporator to the mounting bracket.

Use the Equivalent Length Chart to calculate Nokink flexible
hose refrigerant capacity when determining proper charging
of the system.



EXAMPLE: If the copper lineset length measures 33 linear feet,
and the Nokinks used are 1/4" x 3

' and 1/2" x 3'

First, average the equivalent lengths (EL) of both NoKinks:
1/4" x 3
1/2" x 3
Average = 6.4

Next, add 6.4
Total lineset length = 39.4

' Nokink = 7.7' (EL)
' Nokink = 5.1' (EL)

' (EL)

' (EL) to the 33 linear feet of copper lineset.

'

Then, use the total lineset length (in this case, 39.4
referring to manufacturers specifications to calculate the
amount of additional refrigerant that may be needed for

proper charging.

2601 Spenwick Drive - Houston, TX 77055 800-231-3345 rectorseal.com

RectorSeal reserves the right to change specifications without prior notice. © 2018 RectorSeal. All rights reserved. R50048-0718

') when