KAAWS0101AAA
Installation Instruction
NOTE: Read the entire instruction manual before starting the installation.
Winter Start Control
SAFETY CONSIDERATIONS
Installing and servicing air conditioning equipment can be
hazardous due to system pressures and electrical components. Only
trained personnel should install or service air conditioning
equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning coils, or cleaning and replacing filters. All other
operations should be performed by trained service personnel.
When working on air conditioning equipment, observe precautions
in the literature, on tags, and on labels attached to the unit.
Recognize safety information. This is the safety--alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand these signal words; DANGER, WARNING, and
CAUTION. These words are used with the safety--alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
Follow all safety codes. Wear safety glasses and work gloves.
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death.
Before beginning any installation or modification, be sure the
main electrical disconnect switch is in the OFF position. TAG
THE DISCONNECT SWITCH WITH A SUITABLE
WARNING LABEL.
This kit is for 24 VAC applications ONLY. Do Not use or
connect to any high voltage wiring.
WARNING
!
!
INTRODUCTION
This instruction covers the installation of winter start control Part
No. KAAWS0101AAA on split--system air conditioners. The
device is designed to alleviate nuisance opening of the
low--pressure switch by bypassing it for the first 3 minutes of
operation.
DESCRIPTION AND USAGE
Winter start control must be used where low evaporator
temperatures, or nuisance tripping of low--pressure switch may be
encountered.
.
The kit contains the following items:
(1) Time--Delay Relay (TDR) CESO130062 --00
(1) Installation Instructions
(1) 13” (330 mm) Blue (tap) Wire
(1) 13” (330 mm)Yellow Wire
(1) 13” (330 mm) Brown Wire
(1) Insulated Tap Connector (HY89TC014)
(3) Screws
Use only the kit components described in this installation
procedure.
!
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing and gloves when
handling parts.
INSTALLATION
NOTE: If a fully communicating Infinity/Evolution Control is
being used for low ambient cooling, a winter start control is not
required.
For outdoor units with Infinity/Evolution and TechAssist
single--stage control boards and two--stage non-- communicating
AC:
1. Mount the winter start control board in outdoor control box
using provided screws. If necessary, mark and drill 1/8”
diameter pilot holes.
2. Connect the following wires to the TDR:
S 13” (330 mm) Yellow wire to T1 (24 VAC input)
S 13” (330 mm) Brown wire to T3 (24 VAC common)
S 13” (330 mm) Blue--tap wire to T2 (N.O. relay contact)
3. Secure the open end of Blue Tap wire to the insulated tap
connector (see Fig. 1). To do this, simply butt the tap--wire
against the wire stop. Fold the top cover half over to meet
the base. Squeeze on the top cover and base with ordinary
pliers until the latch locks. DO NOT place pliers on top of
the raised plastic flange.
4. Identify the LPS (low pressure switch) connector at the
ODU circuit board, and identify the 24vac LPS run--wire
(or main lead) for the pressure switch. The LPS run-- wire is
different between circuit boards (see Fig. 3, 4, 5 and 6).
S Infinity/Evolution (HK38EA004) LPS run--wire is
connected to pin #1 (see Fig. 3).
S TechAssist (HK35AC005) LPS run--wire is connected to
pin #2 (middle pin) (see Fig. 4).
S Two --stage non-- communicating AC LPS run--wire is
located just before quick connect connecting to high
pressure switch (see Fig. 5).
S Two --stage communicating AC (HK38EA016) LPS
run--wire is connected to pin #2 (middle pin, see Fig. 6).
Secure the LPS run --wire by inserting the run--wire into the
remaining open section of connector. Fold the base over to
meet the run--wire section. Squeeze on the base and run -wire section with ordinary pliers until the latch locks. DO
NOT place pliers on top of the raised plastic flange.
5. Connect the open strip end of 13” (330 mm) Brown wire to
(C) 24vac common side of the ODU and thermostat field
connections.
6. Connect the open strip end of 13” (330 mm) Yellow wire to
(Y single stage and Y1 2--stage) 24vac side of the ODU and
thermostat field connections.
Additional Installation Instructions for Two --stage
Communicating Capable AC Units:
When TDR is in the circuit and allowing the low pressure switch to
be bypassed but is closed, the outdoor transformer may be out of
phase with the indoor transformer causing the ID or OD fuse to
blow.
To eliminate this possibility, the outdoor transformer needs to be
removed from the circuit.
To do this:
1. Remove the red and black wires from the outdoor transformer secondary that are attached to SEC 1 and SEC 2 on
the control board.
2. Remove the black wire connected to the primary side of the
transformer and the other side from 11 of the contactor.
Since the transformer powers the outdoor control board and
compressor solenoid, a low voltage control wire will need
to be connected from R on the indoor to the UTIL terminal
on the control board. See Fig. 6.
NOTE: The Winter Start Control time--delay logic is now wired in
parallel with the outdoor unit low--pressure switch. When indoor
thermostat calls, the TDR logic will energize (closing T1, T2) for
approximately 3--minutes bypassing the LPS. After 3-- minutes, the
TDR logic will de-- energize (opening T1, T2) and the LPS circuit is
restored (see Fig. 2).
Troubleshooting Upon Start--up
If the TDR does not energize, make sure LPS run and tap wires are
not reversed (double check figures below). You can also apply
24vac direct to T1 and T3 to verify that the TDR relay will
energize.
Wire
Contact
Base
Plastic
Flange
LPS
Run
Wire
Yellow w/ Red
Wire
Stop
Fig. 1 -- Installation
(Y) (C)
LPS
T1 T2
T3
C
LPS = Low Pressure Switch
C = Contactor Coil
T1 = 24 VAC Input
T2 = Switch Override
T3 = 24 VAC Com
TDR = Time Delay Relay
Circuit Board
Fig. 2 -- Wiring for Winter Start Control
Blue
Ta p
Wire
A07934
Blue Tap
Wire
A07944
24 VAC24 VAC
A07933
2