Achieving 2% Low Leakage Rate; 24 Volt Wiring - Goodman AVPTC42D14 series Installation & Operating Instructions Manual

at this entry point. Some codes/municipalities require the supply
wire to be enclosed in conduit. Consult your local codes.
12.4.1 Air Handler Only (Non-Heat Kit Models)
The building supply connects to the stripped black and red wires
contained in the air handler electrical compartment cavity. A ground
screw is also contained in this area. Attach the Supply wires to the
air handler conductors as shown in the unit wiring diagram using
appropriately sized solderless connectors or other NEC or CEC
approved means.
12.4.2 Air Handler - Non-Circuit Breaker Heat Kits
A terminal block is provided with the HKS kit to attach the power
supply and air handler connections. Follow the HKS Installation
Manual and wiring diagram for complete wiring details.
12.4.3 Air Handler With Circuit Breaker Heat Kit
The air handler has a plastic cover on the upper access panel that
will require either one or both sections to be removed to allow the heat kit circuit breaker(s) to be installed. The circuit
breakers have lugs for power supply connection. See the HKS Installation Instructions for further details.
12.5 Low Voltage Connections
Several combinations of low voltage schemes are possible, depending on the presence of a heat kit and whether the
heat kit is single-stage or multi-stage, whether the outdoor section is an air conditioner or heat pump, and whether the
system is setup with a communicating or traditional thermostat. The 24V-control voltage connects the air handler to
the room thermostat and condenser. Low voltage wiring must be copper conductors. A minimum of 18 AWG must be
used for installations up to 100 feet. Low voltage wiring must be connected through the top of the cabinet or either
side. See the "Thermostat Wiring" section of this manual for typical low voltage wiring connections.

13 Achieving 2% Low Leakage Rate

Ensure all the gaskets remain intact on all surfaces as shipped with the unit. These surfaces are areas between the upper tie
plate and coil access panel, blower access and coil access panels, and between the coil access and filter access panels.
Ensure upon installation, that the plastic breaker cover is sitting flush on the blower access panel and all access panels are
flush with each other and the cabinet. With these requirements satisfied, the unit achieves less than 2% airflow leakage
when tested in accordance with ASHRAE Standard 193.

14 24 Volt Wiring

14.1 24 Volt Thermostat Wiring - Non-Communicating
Thermostat Connections
NOTE: Wire routing must not interfere with the circulator blower
operation or routine maintenance.
The air handler's integrated control module provides terminals
for "Y1" and "Y2" and "W1" and "W2" thermostat connections.
This allows the air handler to support the systems shown in the
following table. Refer to the following figures for typical connec-
tions to the integrated control module. Thermostat wiring entrance
holes are located in the top of the blower. Wire routing must not
interfere with circulator blower operation or routine maintenance.
NOTE: A removable plug connector is provided with the control
to make thermostat wire connections. This plug may be removed, wire connections made to the plug, and replaced. It is
STRONGLY recommended that you do not connect multiple wires into a single terminal. Wire nuts are recommended to
ensure one wire is used for each terminal. Failure to do so may result in intermittent operation.
14.2 24 Volt Dehumidistat Wiring - Non-Communicating Thermostat Connections
The optional usage of a dehumidistat allows the air handler's circulator blower to operate at a slightly lower speed during a
combined thermostat call for cooling and dehumidistat call for dehumidification. This lower blower speed enhances dehu-
midification of the conditioned air as it passes through the AC coil. For proper function, a dehumidistat applied to this air
handler must operate on 24 VAC and utilize a switch which opens on humidity rise.
To install/connect a dehumidistat:
Top of
Cabinet
KNOCK-OUT FOR ELECTRICAL
COOLING HEAT PUMP HEATING ELECTRIC HEATING
1-STAGE
2-STAGE
1-STAGE
2-STAGE
1-STAGE
2-STAGE
11
CONNECTIONS
Figure 13
------ 1- or 2-STAGE
------ 1- or 2-STAGE
1-STAGE ------
2-STAGE ------
1-STAGE 1- or 2-STAGE
2-STAGE 1- or 2-STAGE
Table 8
Side of
Cabinet