York YMC2 Installation And Assembly

JOHNSON CONTROLS
53
SECTION 4 - REASSEMBLY
FORM 160.84-N1
ISSUE DATE: 11/22/2016
4
FIGURE 41 - TORQUE FITTING
LD17272
TORQUE
LOCKNUT
Straight Non-Adjustable End Assembly
1. Inspect to ensure that both matching parts are free
of burrs, nicks, scratches or any foreign particles.
2. Install O-ring on port end of tting, if it is NOT
pre-installed, use care NOT to nick the O-ring.
3. Lubricate O-ring with a light coat of synthetic
Polyolester (POE) oil or POE grease.
4. Screw tting into port until the hex at contacts
the port face. Light wrenching may be necessary.
5. Tighten to give torque for the specied size as
specied in Table 13 on page 42 or Table 12 on
page 42.
FIGURE 42 - SAE OR ISO 6149 STRAIGHT
THREAD O-RING PORT
LD17273
SEALED
WITH
O-RING
THREADED
FOR
HOLDING POWER
Assembly of O-ring Face Seal Fittings
The male end and female nut of face seal fittings have
UN/UNF straight threads. An elastomeric O-ring is fit-
ted into the grooved male end. During assembly, the O-
ring is firmly sandwiched between the sealing surfaces.
Sealing is thus affected and maintained by the O-ring
compression which results from the clamping force
generated by tightening the nut. The straight threads do
NOT offer sealing action; they provide the resistance
(holding power) for service pressure.
O-ring Face Seal Assembly
1. Inspect to ensure that both matching parts are free
of burrs, nicks, scratches or any foreign particles.
2. Install O-ring in grooved face seal end of tting,
if it is NOT pre-installed, use care NOT to nick
the O-ring.
3. Lubricate O-ring with a light coat of synthetic
Polyolester (POE) oil or POE grease.
4. Thread the nut by hand, and tighten nut to the ap-
propriate torque value shown in Table 13 on page
42 or Table 12 on page 42.

York YMC2 Specifications

General

Brand	York
Model	YMC2
Category	Chiller
Language	English