Goodman ACVC96 BA Series Service And Troubleshooting page 25

SYSTEM OPERATION
must be NEC Class 1, and must comply with all applicable codes.
The furnace must be electrically grounded in accordance with
local codes or, in their absence, with the latest edition of The
National Electric Code, ANSI NFPA 70 and/or The Canadian
Electric Code CSA C22.1.
Use a separate fused branch electrical circuit containing
properly sized wire, and fuse or circuit breaker. The fuse or
circuit breaker must be sized in accordance with the maximum
overcurrent protection specified on the unit rating plate. An
electrical disconnect must be provided at the furnace location.
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit's blower door. For direct vent
applications, the cabinet opening to the junction box must be
sealed air tight using either an UL approved bushing such as
Heyco Liquid Tight or by applying non-reactive UL approved
sealant to bushing.
Line polarity must be observed when making field connections.
Line voltage connections can be made through either the right
or left side panel. The furnace is shipped configured for a
left side (right side for counterflows) electrical connection
with the junction box located inside the burner compartment.
To make electrical connections through the opposite side of
the furnace, the junction box must be relocated to the other
side of the burner compartment prior to making electrical
connections. To relocate the junction box, follow the steps
shown below.
NOTE: Wire routing must not to interfere with circulator blower
operation, filter removal, or routine maintenance.
Junction Box Relocation
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
T
O PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK
DISCONNECT ELECTRICAL POWER BEFORE INSTALLING OR SERVICING THIS
.
UNIT
Line voltage connections can be made through either the right
or left side panel. The furnace is shipped configured for a left
side electrical connection. To make electrical connections
through the opposite side of the furnace, the junction box
must be relocated to the right side prior to making electrical
connections. To relocate the junction box, perform the
following steps.
1. Remove the burner compartment door.
2. Remove and save the two screws securing the junction box
to the side panel.
3. Relocate junction box and associated plugs and grommets
to opposite side panel. Secure with screws removed in step
WARNING
. U
SE GLOVES AS A
.
WARNING
To ensure proper unit grounding, the ground wire should run
from the furnace ground screw located inside the furnace junction
box all the way back to the electrical panel. NOTE: Do not
use gas piping as an electrical ground. To confirm proper
unit grounding, turn off the electrical power and perform the
following check.
1. Measure resistance between the neutral (white) connection
and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch
which interrupts unit voltage when the blower door is opened for
servicing. Do not defeat this switch.
EXTREMELY IMPORTANT: This system does not contain
an O wire input (reversing valve signal). If a heat pump is
installed, the thermostat should be setup for single stage
heat/single stage cool installs ( W= Heat Call and Y = Cool
Call). Setting thermostat for heat pump control will result in
incorrect performance.
Quick Start Guide
1) Connect all necessary thermostat wires to the
thermostat connector on the furnace control (only
available connections on the furnace are R & C for
power, Y for Cooling Calls, W for Heating Calls, G for
Fan Calls, Dehum for Dehumidification Calls. Furnace
will control staging of indoor unit and outdoor unit
automatically based on these inputs).
2) Make sure thermostat is set to single stage heat / single
stage cool mode. When a cool call is given, 24VAC
should be applied to the Y terminal (G will have 24VAC
as well if a G wire is installed). When a heat call is given
24VAC should be applied to the W terminal (G may
have 24VAC as well if a G wire is installed). Even if a
heat pump is installed, do not setup the thermostat in
heat pump mode. Single stage heat / single stage cool
mode is all that is required for all applications. See rest
of manual for any exceptions. Do not setup thermostat
in multi stage mode either, it is not necessary.
,
3) For communicating 2 stage AC/HP or inverter AC/
HP outdoor units, connect the 1&2 wires between the
indoor and outdoor unit. It is recommended for 2 stage
applications that a separate transformer be installed
in the outdoor unit to provide 24VAC to the outdoor
control. R&C can be used between the indoor and
outdoor in 2 stage AC application but only if there isn't
already a transformer installed in the outdoor unit.
4) Turn on power to Indoor and Outdoor units
5) Charging outdoor unit: Provide a cooling call (Y or
Y+G) – this initial cooling call after the power is turned
on will run the outdoor unit at full capacity until the call
is removed. Use this mode for charging. If system is
running low stage cooling just cycle power and provide
a cool call again to ensure full capacity cooling.
6) System Testing: Download the CoolCloudHVAC phone
application (see pages 31 and 32)and use it to test all
operations of both indoor and outdoor units.
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