Lennox Signature XP21 Series User Manual

Page 47
XP21
OUTDOOR CONTROL − PART NUMBER 103369−XX
Jumper Settings
55
50
DEGREE
TARGET
45
DEGREE
TARGET
40
DEGREE
TARGET (DEFAULT)
55
50
45
40
55
50
45
40
55
50
45
40
55
50
45
40
DEGREE
TARGET
100
90
DEGREE
TARGET
70
DEGREE
TARGET
50
DEGREE
TARGET
100
90
70
50
DEGREE
TARGET
100
90
70
50
100
90
70
50
100
90
70
50
30
0
30
SECOND DELAY
SECOND DELAY
0
Cut for Humiditrol
®
− Enhanced
Dehumification Accessory (EDA)
applications.
SECOND−STAGE LOCK−IN
TEMPERATURE
(HP ONLY) J4
J1 (HP ONLY)
J3 ALL UNITS)
DS TO R TWO−STAGE UNIT
ONLY)
(TWO−STAGE HEAT
PUMP ONLY) J2
DEFROST TERMINATION TEMPERATURE
COMPRESSOR SHIFT DELAY
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.
FAN CYCLING
ON
OFF
JUMPER ON
FAN ON FOR 5 MINUTES
DISABLE (DEFAULT)
JUMPER OFF
(DEFAULT)
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.
SEE NOTE ABOVE FOR FURTHER DETAILS.
100
90
70
50
(DEFAULT)
(DEFAULT WHEN JUMPER IS
REMOVED OR MISSING)
90
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.
Communication System
The jumper settings and link are default settings and ONLY control
system operation if configuration settings in the icomfort
thermostat are not available.
The Lennox icomfort thermostat must be used in
communicating applications. Refer to page 51 for fur-
ther information.
7−SEGMENT
DISPLAY
PUSH
BUTTON
Set up of jumpers on
replacement outdoor
control.
MANDATORY CONFIGURATION REQUIREMENTS
 HEAT PUMP CONTROL  TWO−STAGE OP-
ERATION
NOTE − LINK NOT APPLICABLE TO
ONE−STAGE UNITS. CUTTING LINK WILL
HAVE NO AFFECT ON OPERATION OF
ONE−STAGE UNITS
.

Lennox Signature XP21 Series Specifications

General

Brand	Lennox
Model	Signature XP21 Series
Category	Heat Pump
Language	English