American Standard Foundation BAYHTFA305 Series User manual

June 2020 ACC-SVN207B-EN
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.
Electric Heat
Foundation™ Packaged Rooftop Units
3 - 5 Tons
Installation Instructions
BAYHTFA305* BAYHTFA405* BAYHTFAW10*
BAYHTFA307* BAYHTFA407* BAYHTFAW15*
BAYHTFA310* BAYHTFA410* BAYHTFAW20*
BAYHTFA315* BAYHTFA415* BAYHTFAW25*
BAYHTFA320* BAYHTFA420*
BAYHTFA325* BAYHTFA425*

© 2020 ACC-SVN207B-EN
Introduction
Read this manual thoroughly before operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required. Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTIONsIndicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
NOTICE Indicates a situation that could result in
equipment or property-damage only
accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment. Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
and HCFCs such as saturated or unsaturated HFCs and
HCFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified according to local rules. For
the USA, the Federal Clean Air Act (Section 608) sets forth
the requirements for handling, reclaiming, recovering and
recycling of certain refrigerants and the equipment that is
used in these service procedures. In addition, some states
or municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken
could result in death or serious injury. Technicians, in
order to protect themselves from potential electrical,
mechanical, and chemical hazards, MUST follow
precautions in this manual and on the tags, stickers,
and labels, as well as the instructions below:
• Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Safety Data Sheets
(SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYSrefertotheappropriateSDS andOSHA/GHS
(Global Harmonized System of Classification and
Labeling of Chemicals) guidelines for information on
allowable personal exposure levels, proper
respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.

Introduction
ACC-SVN207B-EN 3
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission. Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.

4ACC-SVN207B-EN
General Information
Inspection
1. Unpack all components of the kit.
2. Check carefully for any shipping damage. If any
damage is found it must be reported immediately and
a claim made against the transportation company.
3. Visually inspect the components for shipping damage
as soon as possible after delivery, before it is stored.
4. Concealed damage must be reported within 15 days. If
concealed damage is discovered, stop unpacking the
shipment.
5. Do not remove damaged material from the receiving
location. Take photos of the damage, if possible. The
owner must provide reasonable evidence that the
damage did not occur after delivery.
6. Notify the carrier’s terminal of damage immediately by
phone and by mail. Request an immediate joint
inspection of the damage by the carrier and the
consignee.
Note: Do not attempt to repair any damaged parts until
the parts are inspected by the carrier’s
representative.
Parts List
• Heater element assembly
• Heater control assembly
• Heater support bracket
• 10 x sheet metal screws (1/2")
• Wiring diagram(s)
General
These instructions cover the installation of accessory
electric heat in Cooling Only units. Limit control settings
are listed in the following table:
Table 1. Limit control settings (Fº)
Heater Rated Voltage
Downflow & Horizontal
Auto Reset One shots
240V 130 220
480V 130 220
600V 130 220
The following tables show the air temperature rise across
the electric heaters:
Table 2. Air temperature rise across electric heaters (°F)
kW Stages
3 Tons
940 CFM
EBC036A*
4 Tons
1280 CFM
EBC048A*
5 Tons
1640 CFM
EBC060A*
4.7 112.38 9.29 7.43
7.5 119.76 14.82 11.85
10 126.34 19.76 15.81
14.4 137.93 28.45 22.76
20 2 - 39.51 31.61
25 2 - - 39.51
Notes:
1. For minimum design airflow, see airflow performance table for each
unit.
2. To calculate temp rise at different airflow, use the following formula: 
Temp. rise across Electric Heater = kW x 3414/1.08 x cfm.

ACC-SVN207B-EN 5
Installation
Remove Parts from Packaging
1. Remove all components from packaging.
2. Discard foam supports before installing heater.
Figure 1. Unpack heater
Heater Installation
1. Remove indoor fan panel, electric heater panel,
compressor access panel, vertical post, and control
box panel.
Figure 2. Remove panels
2. Using two sheet metal screws provided, install heater
support bracket to the back wall of the fan deck.
Figure 3. Install support bracket
3. Install vestibule by inserting left side then seating the
right side against the corner post.

Figure 4. Install vestibule
Installation
6ACC-SVN207B-EN
4. Align screw holes and secure vestibule with sheet
metal screws provided in the kit.
Figure 5. Secure vestibule with screws
5. Through the opening, locate the bracket attached to the
indoor fan panel on the top. Insert heater at an angle
into the opening while angling the rear side higher
than the front to insure the heater support wires are
above the cutouts in the bracket. Slide heater assembly
through cutouts in bracket until faceplate seats against
vestibule.
Figure 6. Install heater

Figure 7. Install heater - side view
Installation
ACC-SVN207B-EN 7
6. Secure heater with ½" sheet metal screws provided in
the ship-with packet, shooting through the pre-drilled
holes.
Figure 8. Secure heater with screws
7. Punch hole in rubber grommet in mid-panel behind
post prior to routing wires.
Note: Use wiring diagram provided to perform the
following steps.
8. Attach wires pre-routed in vestibule to heater.
Figure 9. Attach wires
9. Connect low voltage plug to the mating plug in the unit
control box.
10. Route and secure the power wire harness, one end to
the terminal block in the heater control panel and the
other end to the terminal block in the unit control box
or terminal block at single point box or TBUE, as
required.
Harness connections between contactors
and heater elements assembly

Figure 10. Route power wire harness
Installation
8ACC-SVN207B-EN
11. Replace all panels removed in Step 1.
Power wire connection from terminal
block in heater control assembly Low voltage plug connection

Installation
ACC-SVN207B-EN 9
Table 3. Unit wiring with electric heat (single point connection)
Tons
Unit
Model
Number
Heater Model
Number
Heater kW
Rating(a)
Control
Stages
Heater
Amps
Standard Indoor Motor Oversize Indoor Motor
MCA
Max Fuse Size
or Max Circuit
Breaker MCA
Max Fuse Size
or Max Circuit
Breaker(b)
208/230 Volts Three Phase
3EBC036A3
BAYHTFA305A 3.5/4.7 19.8/11.3 19.5/20.4 25/25 20.7/21.9 30/30
BAYHTFA307A 5.6/7.5 115.6/18.0 23.2/28.9 25/30 24.7/28.9 30/35
BAYHTFA310A 7.5/10 120.8/24.1 28.9/36.4 30/40 30.4/37.9 35/40
BAYHTFA315A 10.8/14.4 130.0/34.6 38.8/49.7 40/50 40.3/51.2 45/60
4EBC048A3
BAYHTFA305A 3.5/4.7 19.8/11.3 23.6/24.8 35/35 24.8/24.8 35/35
BAYHTFA307A 5.6/7.5 115.6/18.0 23.6/28.9 35/35 24.8/30.4 35/35
BAYHTFA310A 7.5/10 120.8/24.1 28.9/36.4 35/40 30.4/37.9 35/40
BAYHTFA315A 10.8/14.4 130.0/34.6 38.8/49.7 40/50 40.3/51.2 45/60
BAYHTFA320A 15/20 241.7/48.1 51.5/66.5 60/70 53/68 60/70
5EBC060A3
BAYHTFA305A 3.5/4.7 19.8/11.3 26.4/27.6 40/40 27.6/27.6 40/40
BAYHTFA307A 5.6/7.5 115.6/18.0 26.4/28.9 40/40 27.6/30.4 40/40
BAYHTFA310A 7.5/10 120.8/24.1 28.9/36.4 40/40 30.4/37.9 40/40
BAYHTFA315A 10.8/14.4 130.0/34.6 38.8/49.7 40/50 40.3/51.2 45/60
BAYHTFA320A 15/20 241.7/48.1 51.5/66.5 60/70 53/68 60/70
BAYHTFA325A 18.8/25 252.1/60.1 62.9/81.6 70/90 64.4/83.1 70/90
460 Volts Three Phase
3EBC036A4
BAYHTFA405A 5 1 6 10.7 15 11.2 15
BAYHTFA407A 7.5 1 9 14.5 15 15 20
BAYHTFA410A 10 112 18.2 20 18.7 20
BAYHTFA415A 15 118 25.8 30 26.3 30
4EBC048A4
BAYHTFA405A 5 1 6 11 15 11.4 15
BAYHTFA407A 7.5 1 9 14.5 15 15 20
BAYHTFA410A 10 112 18.2 20 18.7 20
BAYHTFA415A 15 118 25.8 30 26.3 30
BAYHTFA420A 20 224.1 33.3 35 33.8 35
5EBC060A4
BAYHTFA405A 5 1 6 12.9 20 13.3 20
BAYHTFA407A 7.5 1 9 14.5 20 15 20
BAYHTFA410A 10 112 18.2 20 18.7 20
BAYHTFA415A 15 118 25.8 30 26.3 30
BAYHTFA420A 20 224.1 33.3 35 33.8 35
BAYHTFA425A 25 230.1 40.8 45 41.3 45
575 Volts Three Phase
3EBC036AW BAYHTFAW10A 10 19.6 14 15 14.8 15
BAYHTFAW15A 15 114.4 20 25 20.9 25
4EBC048AW
BAYHTFAW10A 10 19.6 14 15 14.8 15
BAYHTFAW15A 15 114.4 20 25 20.9 25
BAYHTFAW20A 20 219.2 26 30 26.9 30
5EBC060AW
BAYHTFAW10A 10 19.6 14 15 14.8 15
BAYHTFAW15A 15 114.4 20 25 20.9 25
BAYHTFAW20A 20 219.2 26 30 26.9 30
BAYHTFAW25A 25 224.1 32 35 32.9 35

Installation
10 ACC-SVN207B-EN
380 Volts Three Phase(c)
3EBC036AK
BAYHTFA407A 4.7 17.2 11.5 15 13.4 20
BAYHTFA410A 6.3 19.5 14.5 15 16.3 20
BAYHTFA415A 9 1 13.7 19.7 20 21.6 25
4EBC048AK
BAYHTFA407A 4.7 17.2 11.5 15 13.4 20
BAYHTFA410A 6.3 19.5 14.5 15 16.3 20
BAYHTFA415A 9 1 13.7 19.7 20 21.6 25
BAYHTFA420A 12.5 219.1 26.4 30 28.3 30
5EBC060AK
BAYHTFA407A 4.7 17.2 11.5 15 13.4 20
BAYHTFA410A 6.3 19.5 14.5 15 16.3 20
BAYHTFA415A 9 1 13.7 19.7 20 21.6 25
BAYHTFA420A 12.5 219.1 26.4 30 28.3 30
BAYHTFA425A 15.7 223.8 32.3 35 34.2 35
(a)Heater kW ratings are at 208/240V for 208/230V units, 480V for 380V & 460V units, and 600V for 575V units.
(b)Values do not include power exhaust accessory.
(c)Unit will operate reliably at 400VAC.
Table 3. Unit wiring with electric heat (single point connection)
Tons
Unit
Model
Number
Heater Model
Number
Heater kW
Rating(a)
Control
Stages
Heater
Amps
Standard Indoor Motor Oversize Indoor Motor
MCA
Max Fuse Size
or Max Circuit
Breaker MCA
Max Fuse Size
or Max Circuit
Breaker(b)

©2020
Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and
specifications without notice. We are committed to using environmentally conscious print practices.
Trane and American Standard create comfortable, energy efficient indoor environments for commercial
and residential applications. For more information, please visit trane.com or americanstandardair.com.
ACC-SVN207B-EN 02 Jun 2020
Supersedes ACC-SVN207A-EN (Dec 2016)