Lennox 16B27, Manuallines

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Page 2
Shipping and Packing List
Check package contents for shipping damage. Consult
last carrier immediately if damage is found.
1 – Control
1 – Wiring diagram (537202-02)
1 – Jumper, Link Guide and Diagnostic Code Sheet
General
This document provides general guidelines on field re -
placement of air handler control and unit configuration.
This kit replaces Kit # 65W70 and #13Y22 and is back-
wards compatible.
Air Handler Control Removal and
Installation
F
or
A
ll
A
pplicAtions
1. Disconnect power to the unit.
2. Remove unit access panel. See unit installation
instruction for access panel removal procedure.
3. Recommend removing each wire connected to the
control individually and connecting to the new control.
Alternate method recommended is to mark each wire
as it is removed from control.
4. Once all connections have been transferred to the new
control. Remove the old control by removing the two
screws securing the control mounting bracket to the
control box (see “Figure 1. Air Handler Control Removal
and Installation”). Also see “Air Handler Control Button
and Display” on page 8.
5. Remove the four plastic standoffs that secure the
control to mounting bracket
6. Secure the new indoor control to the mounting bracket
using existing four plastic standoffs.
7. Secure control mounting bracket to control box using
existing two screws.
F
or
n
on
-c
ommunicAting
A
pplicAtions
o
nly
1. Note position of all jumpers on the existing air handler
control and relocate same jumpers to those positions
on the new air handler control. Also see “Air Handler
Control Button and Display” on page 8.
2. Configure new Control for non-communicating
systems using the procedures outline in “Configuring
Unit” on page 19. For communicating systems, refer
to the iComfort
®
thermostat installation instructions for
system configuration.
WARNING
This product contains a chemical known to the State
of to cause cancer, birth defects, or other
reproductive harm.
CONTROL
BOARD
CONTROL MOUNTING
BRACKET
CONTROL BOX
CONTROL MOUNTING
BRACKET SCREWS
Figure 1. Air Handler Control Removal
and Installation
IMPORTANT
Control board must be installed in proper orientation for
all wiring to reconnect to the control board. Please refer
to Figure 1 diagram above for control board orientation.
Same orientation whether unit is configured for up-flow,
down-flow, horizontal right or horizontal left.
WARNING
Electric Shock Hazard.
Can cause injury or death.
Foil-faced insulation has conductive
characteristics similar to metal. Be sure there
are no electrical connections within 1/2ʺ
of the insulation. If the foil-faced insulation
comes in contact with electrical voltage, the
foil could provide a path for current to pass
through to the outer metal cabinet. While
the current produced may not be enough to
trip existing electrical safety devices (e.g.,
fuses or circuit breakers), the current can be
enough to cause an electrical shock hazard
that could cause personal injury or death.