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Installation Guide

ManualsBrandsWinchester ManualsAir Conditioners1.5 Ton 14 SEER Residential Whole House Unit Sweat A/C System with 30 ft. Line Set
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1183509-UIM-D-0815
6 Johnson Controls Unitary Products
3. Loosen and remove the liquid line connection nut and the sealing
disc from the distributor assembly. Note that the fitting has right
hand threads.
4. Slide the nut over the liquid line to be installed, and discard the
seal disc.
5. Install required size piston into the distributor. Refer to supplied
Tabular Data Sheet for specific piston size and indoor coil match
up. See Figure 5.
6. Verify that the teflon washer is still in place in the distributor open-
ing. See Figure 5.
7. After piston is installed, install the liquid line to the top of the pis-
ton/distributor assembly. Hand tighten, and turn an additional 1/4
turn to seal. Do not over tighten fittings.
8. Replace black plastic cap on equalizer fitting.
9. After line set is installed, leak test the system.
THERMOSTATIC EXPANSION VALVE (TXV) INSTAL-
LATION
The following are the basic steps for installation. For detailed instruc-
tions, refer to the Installation Instructions accompanying the TXV kit.
Install TXV kit as follows:
1. Relieve the holding charge by depressing schrader core on the suc-
tion manifold stub out.
2. After holding charge is completely discharged, loosen and remove
the Schrader core.
3. Place a backup wrench on distributor, loosen and remove brass
distributor nut. Retain brass nut for use on liquid line. Keep teflon
washer in place and discard clear disk.
4. Install the thermal expansion valve to the distributor assembly with
supplied fittings. Ensure teflon washer is seated in distributor. Hand
tighten and turn an additional 1/4 turn to seal. Do not overtighten fit-
tings. See Figure 6.
5. Slide the nut removed in step 3 over the supplied liquid line. Place
supplied teflon washer from TXV kit in place on TXV, and install liq-
uid line to the top of the thermal expansion valve. Adjust assembly
so liquid line aligns with hole in access panel. Hand tighten the liq-
uid line, and apply an additional 1/4 turn to seal.
6. Install the TXV equalizer line onto the vapor line by hand tighten-
ing the 1/4” SAE coupling nut to the equalizer fitting, and apply an
additional 1/3 turn to seal. See Figure 7.
FIGURE 5: Piston Installation
CAUTION
Do not overtorque. Do not use slip joint pliers. This will distort the alu-
minum distributor and the brass fitting (potentially causing leaks).
CAUTION
Outdoor unit model numbers ending with an “H” have a factory
installed hard start kit which is required when a TXV is installed on
the indoor unit. Outdoor unit model numbers with no “H” ending do
not require a hard start kit unless a TXV is being installed on the
indoor unit or unless local regulations dictate it. The Tabular Data
Sheet which comes with the unit specifies whether or not a hard start
kit is required. When a TXV Kit is needed, it should be ordered from
Source 1.
IMPORTANT
Refer to the Technical Guide for the unit to determine the proper
TXV kit to be used on this product.
A0305-001
DISTRIBUTOR
PISTON
LIQUID LINE SWIVEL COUPLING
(This fitting is a right-handed thread.
Turn counter-clockwise to remove.)
TEFLON WASHER
!
!
CAUTION
Do not overtorque. Do not use slip joint pliers. This will distort the alu-
minum distributor and the brass fitting (potentially causing leaks).
FIGURE 6: TXV Installation
WARNING
Schrader valve core MUST NOT be installed with TXV installation.
Poor system performance or system failure could result.
FIGURE 7: TXV Bulb and Equalizer Line Installations
!
TXV / DISTRIBUTOR COUPLING
LIQUID LINE / TXV COUPLING
TEFLON WASHER
TXV
TEFLON WASHER
DISTRIBUTOR
A0281-001
!