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Table
1 - Accessory
Usage
Recommended
Standard with Infinity Control
(Low Ambient not allowed with
No
non-communicating
thermostat)
For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal
or 35 ft. (10.7 m) vertical differential
(total equivalent
length), refer to the Long
Line Guideline--Air
Conditioners
and Heat Pumps using Puron® Refrigerant.
1- Required on all indoor units. Standard on all new Puron refrigerant
fan coils and furnace coils.
REQUIRED
FOR
REQUIRED
FOR SEA COAST
LOW-AMBIENT
COOLING
REQUIRED
FOR LONG LINE
ACCESSORY
APPLICATIONS
APPLICATIONS
APPLICATIONS*
(Below 55°F/12.8°C)
(Within 2 miles/3.22
km)
Compressor
Start Assist Kit
No
Yes
No
Crankcase
Heater
Standard
Standard
Standard
Standard with Infinity Control
Evaporator
Freeze Protection
(Low Ambient not allowed with
No
No
non-communicating
thermostat)
Liquid-Line
Solenoid Valve
No
No
No
Standard with Infinity Control
Low-Ambient
Control
(Low ambient
not allowed with
No
No
non-communicating
thermostat)
Puron Refrigerant
Balance Port Hard-
ShutOff TXV
Yes1"
Yest
Yes1"
Support
Feet
No
Recommended
Winter Start Control
No
Make Piping
Connections
PERSONAL
INJURY AND ENVIRONMENTAL
HAZARD
Failure
to follow this warning
could result in personal
injury
or death.
Relieve
pressure
and recover
all refrigerant
before
system
repair
or final unit disposal.
Use all service
ports and open
all flow-control
devices,
including
solenoid
valves.
Federal
regulations
require
that you do not vent
refrigerant
to the
atmosphere.
Recover
during
system
repair
or final
unit disposal.
[]NIT
DAMAGE
HAZARD
Failure
to follow
this caution
may
result
in
equipment
damage
or improper
operation.
If ANY
refrigerant
tubing
is buried,
provide
a 6-in
(152.4
mm) vertical
rise at service valve.
Refrigerant
tubing lengths
up to 36-in
(914.4
mm)
may
be buried
without
further
special
consideration.
Do not bury lines more
than 36-in.
(914.4
mm).
Outdoor
units may be connected
to indoor
section using accessory
tubing package
or field-supplied
refrigerant
grade tubing of correct
size and condition.
Rated
tubing
diameters
shown
in Table 2 are
recommended
up to 80 ft. (24.38
m).
See
Product
Data
for
acceptable
alternate
vapor diameters
and associated
capacity
losses.
For
tubing
requirements
beyond
80
ft. (24.38
m),
substantial
capacity
and
performance
losses
can
occur.
Following
the
recommendations
in
the
Residential
Piping
and
Longline
Guideline
will reduce these losses. Refer to Table 2 for field tubing
diameters.
Refer to Table 1 for accessory
requirements.
There
are no buried-line
applications
greater
than
36-in.
(914.4
mm) allowed.
If refrigerant
tubes or indoor
coil are exposed
to atmosphere,
they
must be evacuated
to 500 microns
to eliminate
contamination
and
moisture
in the system.
Outdoor Unit Connected to Factory Approved Indoor
Unit
Outdoor
unit
contains
correct
system
refrigerant
charge
for
operation
with
factory
approved
AHRI
rated
indoor
unit when
connected
by 15 ft. (4.57 m) of field-supplied
or factory-accessory
tubing,
and factory
supplied
filter drier. Check
refrigerant
charge
for maximum
efficiency.
NOTE:
If the indoor
furnace
coil width is more than the furnace
casing
width,
refer to the indoor
coil Installation
Instructions
for
transition
requirements.
[]NIT
OPERATION
AND SAFETY
HAZARD
Failure
to follow
this warning
could
result in personal
injury
or equipment
damage.
Puron®
refrigerant
systems
operate
at higher
pressures
than
standard
R-22
systems.
Do not use R-22
service
equipment
or components
on Puron®
refrigerant
equipment.
Refrigerant
Tubing
Connection
Outdoor
Connect vapor and liquid tubes to fittings on vapor and liquid
service valves (see Table 2.) Use refrigerant grade tubing.
Sweat Connection
[]NIT
DAMAGE
HAZARD
Failure
to follow
this caution
may
result
in equipment
damage
or improper
operation.
Service
valves must be wrapped
in a heat-sinking
material
such as a wet cloth while brazing.
Use refrigeration
grade
tubing.
Service
valves
are closed
from
factory
and ready for brazing.
After wrapping
service valve with a
wet
cloth,
braze
sweat
connections
using
industry
accepted
methods
and
materials.
Consult
local
code
requirements.
Refrigerant
tubing
and indoor
coil are now ready for leak testing.
This check should include
all field and factory joints.
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