Shipping And Packing List; Torque Requirements; Operating Gauge Set And Service Valves; Using Manifold Gauge Set - Lennox 13ACD-018-230 Installation Instructions Manual

Shipping and Packing List

Check the unit for shipping damage. If damaged, or if parts
are missing, immediately contact the last shipping carrier.
1 — Assembled 13ACD unit
1 — Refrigerant flow control (RFC) kit (orifice) (see Table 3
for a complete list of available fixed orifice kits)

Torque Requirements

When servicing or repairing HVAC components, ensure
the fasteners and caps are appropriately tightened. Table
1 lists torque values for fasteners.
Parts
Service valve cap
Sheet metal screws
Machine screws #10
Compressor bolts
Gauge port seal cap
Table 1. Torque Requirements
Operating Angle-Type
Service Valve:
1. Remove stem cap
appropriately sized wrench.
2. Use a service wrench with a
hex-head extension (3/16" for
liquid line valve sizes and 5/16"
for vapor line valve sizes) to back
the stem out counterclockwise as
far as it will go.
Operating Ball-Type Service Valve:
1. Remove stem cap with an appropriately sized wrench.
2. Use an appropriately sized wrenched to open. To open valve,
rotate stem counterclockwise 90°. To close rotate stem
clockwise 90°.
TO OPEN ROTATE STEM
COUNTERCLOCKWISE 90°.
TO CLOSE ROTATE STEM
CLOCKWISE 90°.
SERVICE PORT
SERVICE PORT
CORE
SERVICE PORT
TO OUTDOOR
506694-01
Recommended Torque
8 ft. lb. 11 NM
16 in. lb. 2 NM
28 in. lb. 2 NM
90 in. lb. 10 NM
8 ft. lb. 11 NM
SERVICE PORT
CAP
with an
TO INDOOR
UNIT
When service valve stem is OPEN, the service
TO OUTDOOR
port is open to line set, indoor and outdoor unit.
UNIT
TO INDOOR UNIT
BALL (SHOWN
CLOSED)
CAP
STEM CAP
UNIT
Figure 2. Operating Angle and Ball-Type Service Valves

Operating Gauge Set and Service Valves

Using Manifold Gauge Set

When checking the system charge, only use a manifold
gauge set that features low-loss anti-blow back fittings.
Operating Service Valves
The liquid and vapor line service valves are used for
removing refrigerant, flushing, leak testing, evacuating,
checking charge and charging.
Each valve is equipped with a service port which has a
factory-installed valve core. Figure 2 provides information
on accessing and operating both angle and ball-type
service valves.
To prevent stripping of the various caps used, the
appropriately sized wrench should be used and fitted
snugly over the cap before tightening.
ANGLE-TYPE SERVICE VALVE
(BACK-SEATED OPENED)
SERVICE PORT CORE
(VALVE STEM SHOWN
OPEN)
INSERT HEX WRENCH
HERE
STEM
CAP
To Access Service Port:
A service port cap protects the service port core from contamination and
serves as the primary leak seal.
1. Remove service port cap with an appropriately sized wrench.
2. Connect gauge set to service port.
3. When testing is completed, replace service port cap
and tighten as follows:
With torque wrench: Finger tighten and torque cap
per table 1.
Without torque wrench: Finger tighten and use an
appropriately sized wrench to turn an additional
VALVE
1/6 turn clockwise.
STEM
Reinstall Stem Cap:
Stem cap protects the valve stem from damage and serves as
the primary seal. Replace the stem cap and tighten as follows:
With Torque Wrench: Finger tighten and then torque
cap per table 1.
Without Torque Wrench: Finger tighten and use an
appropriately sized wrench to turn an additional
1/12 turn clockwise.
Issue 1720
IMPORTANT
ANGLE-TYPE SERVICE VALVE
(FRONT-SEATED CLOSED)
(VALVE STEM SHOWN
CLOSED) INSERT HEX
WRENCH HERE
When service valve stem is
CLOSED, the service port is
open to the line set and indoor
unit.
1/6 TURN
11 12
1
10
9
8
5
7
6
1/12 TURN
11 12
10
9
8
7
6
2
3
4
1
2
3
4
5
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