Johnson Controls PCG4 Series Скачать руководство пользователя страница 7

Страница: 7 / 26

5750156-UIM-B-0919

Johnson Controls Ducted Systems

CONDENSATE DRAIN

A condensate trap must be installed in the condensate drain. The
plumbing must conform to local codes.

Use Teflon tape or pipe thread compound if needed.

SERVICE ACCESS

Access to all serviceable components is provided at the following loca-
tions:

• Coil guards
• Unit top panel
• Corner posts
• Blower access panel
• Control access panel
• Indoor coil access panel
• Compressor access panel
• Heat exchanger access panel

See Figure 3 for the location of these access locations and see Table 5
for minimum clearances.

See Figure 14 for the R-410A Quick Reference Guide.

THERMOSTAT

Locate the room thermostat on an inside wall approximately 60 in.
above the floor where it is not subject to drafts, sun exposure, or heat
from electrical fixtures or appliances. Use sealant behind the thermostat
to prevent air infiltration. Follow the manufacturer's instructions
enclosed with the thermostat for the general installation procedure. Use
color coded insulated wires (minimum 18 AWG) to connect the thermo-
stat to the unit. See Figure 6. Do not use power stealing thermostats.

POWER AND CONTROL WIRING

Field wiring to the unit must conform to provisions of the current NEC
ANSI/NFPA No. 70 or CEC and/or local ordinances. The unit must be
electrically grounded in accordance with local codes or, in their
absence, with the NEC/CEC. Voltage tolerances that must be main-
tained at the compressor terminals during starting and running condi-
tions are indicated on the unit Rating Plate and in Table 1.

The wiring entering the cabinet must be provided with mechanical strain
relief.

A fused disconnect switch must be field provided for the unit. If any of
the wire supplied with the unit must be replaced, replacement wire must
be of the type shown on the wiring diagram.

Electrical service must be sized properly to carry the load. Each unit
must be wired with a separate branch circuit fed directly from the main
distribution panel and properly fused.

See Figures 6 and 7 for typical field wiring and refer to the appropriate
unit wiring diagram for control circuit and power wiring information.

CAUTION

Hand tighten only.

CAUTION

This system uses R-410A Refrigerant which operates at higher pres-
sures than R-22. No other refrigerant may be used in this system.
Gage sets, hoses, refrigerant containers and recovery systems must
be designed to handle R-410A. If you are unsure, consult the equip-
ment manufacturer. Failure to use R-410A compatible servicing
equipment may result in property damage or injury.

WARNING

Wear safety glasses and gloves when handling refrigerants. Failure
to follow this warning can cause serious personal injury.

FIGURE 6:

Typical Field Control Wiring Diagram for Gas Heat - AC

Models

FIGURE 7:

Typical Field Power Wiring Diagram

THERMOSTAT

NOTE:

Heat Anticipator should be set at 0.35 AMPS for all models

CONTROL

BOARD