Typical Installation With Required Clearances - York CZH Installation Manual

NOTE: ALL OUTDOOR WIRING
MUST BE WEATHERPROOF
FIGURE 1: Typical Installation with Required Clearances
GROUND INSTALLATION
The unit may be installed at ground level on a solid base that will not
shift or settle, causing strain on the refrigerant lines and possible leaks.
Maintain the clearances shown in Figure 1 "Typical Installation with
Required Clearances" and install the unit in a level position.
Normal operating sound levels may be objectionable if the unit is placed
directly under windows of certain rooms (bedrooms, study, etc.).
Isolate the unit from rain gutters to avoid any possible wash out of the
foundation.
ROOF INSTALLATION
When installing units on a roof, the structure must be capable of sup-
porting the total weight of the unit, including a pad, lintel, rails, etc.,
which should be used to minimize the transmission of sound or vibra-
tion into the conditioned space.
WALL MOUNT INSTALLATION
Care must be taken to mount the outdoor unit on a solid base that is
sloped to shed water, secure from settlement, and is isolated from the
structural foundation or walls to prevent sound and vibration transmis-
sion into the living space. In addition heat pump units must be elevated
above anticipated snow accumulation levels to allow for proper defrost
drainage and airflow.
On occasion, site conditions may require direct wall mounted brackets
to be used to locate and support the outdoor unit. In these applications,
care must be taken to address unit base pan support, structural integ-
rity, safe access and servicability, as well as the possible sound and
vibration transmission into the structure. These applications are best
served by a properly engineered solution.
UNIT PLACEMENT
1. Provide a base in the pre-determined location.
2. Remove the shipping carton and inspect for possible damage.
3. Compressor tie-down bolts should remain tightened.
4. Position the unit on the base provided.
LIQUID LINE FILTER-DRIER
The air conditioning unit's copper spun filter/dryer is located on the liq-
uid line.
Johnson Controls Unitary Products
THERMOSTAT
TO INDOOR
NEC CLASS 2
BLOWER
WIRING
TO COIL
SEAL OPENINGS WITH
PERMAGUM OR EQUIVALENT
10" COIL
CLEARANCE AREA
NEC CLASS 1
WIRING
WEATHERPROOF
DISCONNECT
SWITCH
NOTICE
Replacements for the liquid line drier must be exactly the same as
marked on the original factory drier. See Source 1 for O.E.M.
replacement driers.
Failure to do so or using a substitute drier or a granular type may
result in damage to the equipment.
Filter-Drier Source 1 Part No.
S1-02922195000
TXV INSTALLATIONS
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 from the indoor coil by depressing the
Schrader valve stem located in the end of the suction line. Cut the
spundown copper to allow installation of the suction line.
2. After holding charge is completely discharged, loosen and remove
the schraeder cap seal.
3. Loosen and remove distributor cap seal.
4. Install the thermal expansion valve to the distributor assembly with
supplied fittings. Hand tighten and turn an additional 1/4 turn to
seal. Do not overtighten fittings.
5. Install the liquid line to the top of the thermal expansion valve with fit-
ting supplied with the liquid line. Hand modify the liquid line to align
with casing opening. Hand tighten the liquid line and an additional
1/4 turn to seal.
6. Install the TXV equalizer line into the vapor line as follows:
a. Hand tighten the 1/4" SAE nut to the schraeder fitting and an
additional 1/3 turn to seal.
7. At this time do not attach sensing bulb. This will be covered later
after brazing of the lines.
835965-UIM-C-0814
60" OVERHEAD
CLEARANCE
24" SERVICE
ACCESS
CLEARANCE
A0202-001
Apply with Models
All
3