Fieldpiece S365 Operator's Manual

Fieldpiece
Charging Jacket
OPERATOR'S MANUAL
Model S365
01
How to Use
!
The Winter Charge Setup may
only be used for equipment for which
the air conditioning manufacturers
approve the use of the Winter
Charge Setup. Refer to (California's)
Energy Commissions website for
the list of split system air condition
units approved by the manufacturers
to use the Winter Charge Setup. In
addition to the requirements of this
document, manufacturers may issue
additional instructions/clarification
for the equipment and procedures to
be used to conduct the Winter Charge
Setup. These additional instruction/
clarifications are also available on
the (California) Energy Commission
website.
-- California Title 24 2013 Edition
04
WARNINGS
!
Only use on TXV systems using
!
either R410A or R22.
Ensure the system is powered
!
OFF before installing the Charg-
ing Jacket.
Severe injury can occur if the fan
!
turns ON before hooks are se-
curely fastened towards the top
of the condenser.
Wear eye protection.
!
Only use when the ambient dry
!
bulb temperature is between
37°F and 70°F (3°C to 21°C.)
Using outside of this range can
!
damage the air conditioner/heat
pump.
Head pressure of the system
!
needs to remain within the
following safe ranges to avoid
damage to the compressor or
other equipment:
R22: 55psig to 300psig
R410A: 97psig to 500psig
Stop the system if the head pres-
sure approaches these limits.
02
Setup
1 Power down the system.
2 Install Charging Jacket:
RESTRICTION STRING
!
BUNGIE CINCH
A. Tighten Bungie Cinch around top
of condenser fan cage making sure
not to block the airflow inlet (sides.)
B. Fasten hooks securely so that the
the fan does not eject the Charging
Jacket when the system starts.
C. Always start with the top open,
then tighten the restriction string
to restrict airflow as needed.
05
Description
!
HVACR technicians typically
cannot charge a cooling system in
cold weather. The cold temperature
removes too much heat from the
condenser coils.
The Charging Jacket from Fieldpiece
Instruments allow you to charge a TXV
system when ambient temperatures
are between 70°F and 37°F.
It works by restricting the fan outlet
of the condenser, in effect raising the
temperature within the condsenser.
This is a more effective method than
blocking the incoming air to the
condenser coil .
Look professional and increase
your amount of possible jobs. No
more trash bags or cardboard! Do it
the right way.
Maintenance
Hand wash with cold water and
mild detergent if needed and let air
dry. Do not machine wash or dry.
03
3 Make sure people and animals are
clear of the condenser, then start
the system. If using on a heat pump,
set it to cooling mode.
4 Carefully adjust the restriction
of the Charging Jacket until the
difference between the high
side and the low side pressures
is between 160psi and 220psi
(R410A) or 100psi and 145psi (R22).
Restricting airflow increases the
pressure difference.

Check Refrigerant Charge

5 Once the system is within the
pressure difference range, allow
the system to stabilize for 15
minutes.
6 Calculate Actual Subcooling.
T
(
condenser, saturation
If your subcooling is more
than three degrees less than the
target subcooling, then you are
undercharged.
06
- T
liquid line)
(continued)