To Access Service Port - Lennox EL16XC1-018-230 Installation Instructions Manual

TO ACCESS SERVICE PORT:

A service port cap protects the service port core from contamination
and serves as the primary leak seal.
1 - Remove service port cap with an appropriately sized wrench.
2 - Connect gauge set to service port.
3 - When testing is completed, replace service port cap and tighten
as follows:
●
With torque wrench: Finger tighten and
torque cap per table 2.
●
Without torque wrench: Finger tighten and
use an appropriately sized wrench to turn
an additional 1/6 turn clockwise.
Reinstall Stem Cap:
Stem cap protects the valve stem from damage and serves as the
primary seal. Replace the stem cap and tighten as follows:
●
With Torque Wrench: Finger tighten
and then torque cap per table 2.
●
Without Torque Wrench: Finger
tighten and use an appropriately
sized wrench to turn an addition­
al 1/12 turn clockwise.
FIGURE 16
Checking and Adding System Charge
The EL16XC1 unit is factory-charged with enough
HFC-410A refrigerant to accommodate a 15-foot length of
refrigerant piping. Charge should be checked and adjusted
using the tables provided on the charging procedure stick­
er on the unit access panel. Detailed information is given in
the EL16XC1 Installation and Service Procedures manual
(Corp1503-L7), which is available on DaveNet.
IMPORTANT !
Some scroll compressors have an internal vacuum
protector that will unload scrolls when suction pres­
sure goes below 20 psig. A hissing sound will be
heard when the compressor is running unloaded.
Protector will reset when low pressure in system is
raised above 40 psig. DO NOT REPLACE COMPRES­
SOR.
High Pressure Switch (S4)
This unit is equipped with a high pressure switch which is
located on the liquid line. The SPST, normally closed pres­
sure switch opens when liquid line pressure rises above the
factory setting of 590 + 15 psig and automatically resets at
418 + 15 psig.
Homeowner Information
CAUTION
Before attempting to perform any service or mainte­
nance, turn the electrical power to unit OFF at dis­
connect switch.
This product contains a chemical known to the State of
California to cause cancer, birth defects, or other repro­
ductive harm.
In order to ensure peak performance, your system must be
properly maintained. Clogged filters and blocked airflow
1/6 TURN
prevent your unit from operating at its most efficient level.
The system should be inspected and serviced before each
12
1
11
cooling season by a licensed professional HVAC service
2
10
technician (or equivalent).
9 3
4
8
5
7
6
The following maintenance may be performed by the
homeowner.
●
1/12 TURN
12
●
1
11
2
10
9 3
4
8
5
7
6
●
●
●
●
NOTE
any time the unit is in operation. If you are unsure about the
filter required for your system, call your Lennox dealer for
assistance.
Sprinklers and soaker hoses should not be installed
where they could cause prolonged exposure to the
outdoor unit by treated water. Prolonged exposure
of the unit to treated water (i.e., sprinkler systems,
soakers, waste water, etc.) will corrode the surface
of steel and aluminum parts, diminish performance
and affect longevity of the unit.
Page 14
WARNING
Homeowner Maintenance
Contact a licensed professional HVAC technician to
schedule a yearly inspection and maintenance appoint­
ment for your equipment.
Check the indoor unit filter each month and replace the
filter, if necessary.
Have your Lennox dealer show you where your indoor
unit filter is located. It will be either at the indoor unit
(installed internal or external to the cabinet) or behind a
return air grille in the wall or ceiling. Check the filter
monthly and clean or replace it as needed.
Disposable filters should be replaced with a filter of the
same type and size.
Check the indoor unit drain line for obstructions monthly
during the cooling season.
The indoor evaporator coil is equipped with a drain pan
to collect condensate formed as your system removes
humidity from the inside air. Have your dealer show you
the location of the drain line and how to check for obstruc­
tions. (This would also apply to an auxiliary drain, if
installed.)
Check the area around the outdoor unit monthly and re­
move any obstructions that may restrict airflow to the
outdoor unit. This would include grass clippings, leaves,
or papers that may have settled around the unit.
Trim shrubbery away from the unit and periodically check
for debris which collects around the unit.
During the winter months, keep the snow level below the
louvered panels.
The filter and all access panels must be in place
-
IMPORTANT !
EL16XC1 SERIES