Trane XL19i-APG02-EN Application Manual
Application Guide
XL19i-APG02-EN
Low Outdoor Operating Temperature
Unit Mounting
Minimum Clearances
Refrigerant Piping Limitations
Trane XL19i heat pumps and cooling units
The purpose of this bulletin is to provide cumulative application criteria as related to the Trane XL19 i
cooling units and heat pumps.
This bulletin discusses:
I. Off Season Cooling Operation
II. Unit Mounting
III. Minimum Operating Clearances
IV . Refrigerant Piping Limitations
ISSUED BY :
Product Training and Application Department
Trane
T yler, T exas
Pg. 2
Section I - Off Season Cooling Operation
The Trane XL19i may be operated in the cooling mode to 45oF as shipped from the factory . These units
shall only be matched with variable speed air handling units and variable speed furnace / coil combinations.
The coils have factory supplied non - bleed TXV’ s
Please refer to the accessory table below when determining if the XL19i will operate at the specified
conditions as well as required accessories.
ERUTAREPMETDO@SEIROSSECCADERIUQER
ledoM54
0
F04/03
0
F0
i91LX deppihSsACDE
Evaporator Defrost Control Kits (EDC)
A Y28X079 - Cooling only
A Y28X084 - Heat pumps
Compressor Crankcase Heater Kit - BA YCCHT
The Trane XL19i is factory supplied with compressor crankcase heat
Compressor Hard S tart Kits - BA YKSKT
XL19i’ s are factory supplied with compressor start components.
0
F
toN
devorppA
Pg. 3
T ypical wiring when using the evaporator defrost control (EDC) for operation as specified on page 3.
Cooling Split System and AY28X079 Evaporator Defrost Control
2TTZ9
Red
TWE-E
R
EDC
Y 1
Y
Red (R)
Y low
Y
Green (G)
White (W1)
White (W2)
White (W3)
B
Blue (B)
Heat Pump Split System and AY28X084 Evaporator Defrost Control
2TWZ9
TWE-E
Red (R)
Thermostat
R
Y1
Y2
G
W
W2
B
Thermostat
XT500C
R
Y ellow / Red
Yellow
X2
EDR-1
EDC
EDR
Y
Y Low
Green (G)
White (W1)
White (W2)
Y 2
Y 1
G
W1
X2
White (W3)
Blue
Orange
This diagram indicates the correct wiring for the evaporator defrost control. Refer to the installation manual for complete control wiring.
Blue (B)
Orange (O)
B
O
Pg. 4
SECTION II - Unit Mounting:
This section describes appropriate methods for mounting and securing the XL19i.
However, if these units
are to be mounted in a region where high winds are an issue, please refer to the Trane BAYECMT001
extreme conditions mounting kit. If seizmic restraint is required, please refer local code authority . This
application may require a local P .E.’s approval and stamp.
When mounting or securing the T rane condensing units and heat pumps please observe the following.
1. Anytime the unit is to be supported from the edge, the supporting material shall extend minimum two
inches under the perimeter of the unit’s base.
2. The mounting hole locations are molded in the basepan, however, they must be drilled through.
a) Hole locations are identified on page 6.
b) Hole diameter is 5/16”
3. W ashers should be placed in between the fastener head and the basepan.
4. Trane recommends supporting the center of the unit.
5. Base 3 and 4 pans have four mounting holes.
Refer to the dimension tables for actual unit size.
Please refer to the following illustrations for dimensions and general information.
Drawing for illustration purposes only .
Pg. 5
BASE P AN MOUNTING HOLE LOCATIONS
( location only , holes must be drilled )
support must extend 2” from the basepan perimeter
support center of unit
If supporting the base pan from the perimeter, the support must extend under the base pan at least 2”. Trane recommends supporting the middle of the base pan with a cross member.
Pg. 6
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