11
Tranquility
®
Digital Air Handler (TAH)
R e v. : A u g u s t 2 1 , 2 0 1 8
c l i m a t e m a s t e r. c o m
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CAUTION!
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CAUTION!
Installation of a factory supplied liquid line
bi-directional filter drier is required. Never install a suction
line filter in the liquid line.
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CAUTION!
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See compressor section IOM for refrigerant charge
information.
Line Set Installation
Figure 7 illustrates a typical installations of an air handler or
cased coil matched to an indoor compressor section. Table
2 shows typical line-set diameters at various lengths. Lineset
lengths should be kept to a minimum and should always be
installed with care to avoid kinking. Line sets are limited to 60
feet (18 meters) in length (one way). Line sets over 60 feet void
the equipment warranty. If the line set is kinked or distorted, and
it cannot be formed back into its original shape, the damaged
portion of the line should be replaced. A restricted line set will
effect the performance of the system.
All brazing should be performed using nitrogen circulating
at 2-3 psi [13.8-20.7 kPa] to prevent oxidation inside the
tubing. All linesets should be insulated with a minimum
of 1/2” [13mm] thick closed cell insulation. All insulation
tubing should be sealed using a UV resistant paint or
covering to prevent deterioration from sunlight.
When passing refrigerant lines through a wall, seal
opening with silicon-based caulk. Avoid direct contact
with water pipes, duct work, floor joists, wall studs,
floors or other structural components that could transmit
compressor vibration. Do not suspend refrigerant tubing
from joists with rigid straps. Do not attach line set to the
wall. When necessary, use hanger straps with isolation
sleeves to minimize transmission of line set vibration to
the structure.
Installation
Figure 5: Air Coil Connection
Sensing Bulb
IMPORTANT:
DO NOT perform any brazing with the TXV
bulb attached to any line. After brazing operations have been
completed, clamp the TXV bulb securely on the suction line
at the 10 or 2 o’clock position with the strap provided in the
parts bag. Insulate the TXV sensing bulb and suction line
with the provided pressure sensitive insulation.
IMPORTANT:
TXV sensing bulb should be located on a
horizontal section of copper suction line, just outside of
coil box. The copper sensing bulb must never be placed
on any aluminum tube as this will result in galvanic
corrosion and eventual failure of the aluminum tube.
IMPORTANT:
Always protect TXV from heat when brazing.
Air Coil
To obtain maximum performance of a newly manufactured
air coil it should be cleaned before start-up. A 10% solution
of dishwasher detergent and water is recommended for both
sides of the coil. A thorough water rinse should follow.
CAUTION!
HFC-410A systems operate at higher
pressures than R-22 systems. Be certain that service
equipment (gauges, tools, etc.) is rated for HFC-410A.
Some R-22 service equipment may not be acceptable.
TXV w/Internal Check Valve
Suction Line
Liquid Line
Bulb
(Must be
Installed and
Insulated)
Equalizer
Line
LT2
Sensor
Installing the Indoor Coil and Lineset
Figure 5 shows the installation of the lineset and TXV bulb
to a typical indoor coil. Braze the copper line set to the coil.
Nitrogen should be circulated through the system at 2-3 psi
[13.8-20.7 kPa] to prevent oxidation inside the refrigerant
tubing. Use a low silver phos-copper braze alloy on all brazed
connections.
Model
20 feet [6 meters]
40 feet [12 meters]
60 feet [18 meters]
Liquid
Suction
Liquid
Suction
Liquid
Suction
TES/P026 in.
3/8
"
3/4
"
3/8"
3/4
"
3/8"
3/4
"
TES/P038 in.
3/8
"
7/8
"
3/8
"
7/8
"
3/8
"
7/8
"
TES/P049 in.
3/8
"
7/8
"
3/8
"
7/8
"
3/8
"
7/8
"
TES/P064 in.
1/2
"
7/8
"
1/2
"
7/8
"
1/2
"
7/8
"
* 60 feet (18 meters) is the maximum line set length.
Table 2: Line Set Diameters
