Section 2. Unit Location Considerations - Trane 4TTR3 Installation And Operation Manual

Section 2. Unit Location Considerations

2.1 Unit Dimensions and Weight
Table 2.1
Unit Dimensions and Weight
Models H x D x W (in)
4TTR3018N 29 x 26 x 29
4TTR3024N 29 x 26 x 29
4TTR3030N 29 x 30 x 33
4TTR3036N 29 x 30 x 33
4TTR3042N 29 x 34 x 37
4TTR3048N 29 x 34 x 37
4TTR3060N 37 x 34 x 37
* Weight values are estimated.
When mounting the outdoor unit on a roof, be sure the roof will support the unit's weight.
Properly selected isolation is recommended to alleviate sound or vibration transmission to the building structure.
2.2 Refrigerant Piping Limits
1. The maximum TOTAL length of refrigerant lines from outdoor to indoor unit should NOT exceed 150 feet*
(including lift).
2. The maximum vertical change should not exceed 50 feet*.
3. Standard and alternate line sizes and service valve connection sizes are shown in Table 5.1.
* See Table 5.1 for exceptions for certain tonnages.
Note: For other line lengths, Refer to Refrigerant Piping Application Guide, SS-APG006F-EN, or Refrigerant
Piping Software Program.
Standard
Line Set
150' Max
TOTAL Line Length
2.3 Suggested Locations for Best Reliability
Ensure the top discharge area is unrestricted for at least
five (5) feet above the unit.
Three (3) feet clearance must be provided in front of the
control box (access panels) and any other side requiring
service.
It is not recommended to install in a location where noise
may distract the building occupants. Some examples of
these types of locations are sleeping quarters and by
windows of a living area. Please discuss location with the
building owner prior to installation.
Avoid locations such as near windows where condensa-
tion and freezing defrost vapor can annoy a customer.
Position the outdoor unit a minimum of 12" from any wall
or surrounding shrubbery to ensure adequate airflow.
Outdoor unit location must be far enough away from any
structure to prevent excess roof runoff water or icicles
from falling directly on the unit.
18-AC79D1-10E-EN
Weight* (lb)
133
133
156
161
184
189
211
Avoid Install
Near Bedrooms
Min. 12" to
Shrubbery
W
H
D
Min 5' Unrestricted
Min 3'
Unrestricted
Access Panel
3