Jumper Settings; Outdoor Control − Part Number 103369−Xx; Jumpers And Links - Lennox Signature XP21 Series Installation And Service Procedure

Jumper Settings

Communication System
The jumper settings and link are default settings and ONLY control
system operation if configuration settings in the icomfortt
thermostat are not available.
Non−Communicating System
The unit will operate based on jumper settings and R TO DS link on
the MAIN CONTROL. All unit setting changes must be done at the
MAIN CONTROL. The Lennox ComfortSense 7000 thermostat
may be used, as well as other non−communicating electronic−only
thermostats.
Set up of jumpers on
replacement outdoor
control.
(HP ONLY) J4
COMPRESSOR SHIFT DELAY
30
SECOND DELAY
(DEFAULT)
30
0
SECOND DELAY
0
(TWO−STAGE HEAT
PUMP ONLY) J2
SECOND−STAGE LOCK−IN
TEMPERATURE
55
DEGREE
TARGET
50
DEGREE
TARGET
45
DEGREE
TARGET
40
DEGREE
TARGET (DEFAULT)
OUTDOOR CONTROL − PART NUMBER 103369−XX
7−SEGMENT
DISPLAY
PUSH
BUTTON
MANDATORY CONFIGURATION REQUIREMENTS
HEAT PUMP CONTROL
ERATION
1. Set defrost termination temperature (J1) to ensure a completely clear coil before
termination of defrost. Low outdoor temperatures could require higher defrost
termination temperature setting. Factory default setting is 50ºF. If jumper is removed
or missing, default is 90ºF.
IMPORTANT All mandatory configuration requirements (jumpers and link) MUST
be completed prior to starting unit.
2. Second−stage lock−in factory default setting for J2 is 40ºF. If jumper is removed or
missing, default is OFF.
The Lennox icomfortt thermostat must be used in
communicating applications. Refer to page 51 for fur-
ther information.
NOTE Fan cycling routine when activated will cycle the
fan ON for five minutes if the outdoor ambient air
temperature is between 15ºF and 35ºF and the
compressor has been OFF for 25 to 30 minutes. This
option is to help reduce the potential for ice build up on the
orifice ring during system OFF cycles that are greater
than 25 to 30 minutes.
TWO−STAGE OP-
Page 47
J3 ALL UNITS)
FAN CYCLING
JUMPER ON
FAN ON FOR 5 MINUTES
JUMPER OFF
DISABLE (DEFAULT)
SEE NOTE ABOVE FOR FURTHER DETAILS.
J1 (HP ONLY)
DEFROST TERMINATION TEMPERATURE
100
DEGREE
TARGET
90
DEGREE
TARGET
(DEFAULT WHEN JUMPER IS
REMOVED OR MISSING)
70
DEGREE
TARGET
50
DEGREE
TARGET
(DEFAULT)
DS TO R TWO−STAGE UNIT
ONLY)
®
Cut for Humiditrol − Enhanced
Dehumification Accessory (EDA)
applications.
NOTE − LINK NOT APPLICABLE TO
ONE−STAGE UNITS. CUTTING LINK WILL
HAVE NO AFFECT ON OPERATION OF
.
ONE−STAGE UNITS
ON
OFF
90
XP21