Trane BAYWACC11SC1AA Assembly instructions

Top Mount Hydronic
Coil Accessory
Fits HyperionTM and ForeFrontTM
Air Handler models
INSTALLER'S
GUIDE
IMPORTANT—This Document is customer property and is to remain with this unit. Please return to service information
pack upon completion of work.
© 2011 Trane
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
18-GJ37D1-2
04/11
Model:
BAYWACC11SC1AA
Table of Contents
Section 1. Safety Considerations...... 2
Section 2. General Information.......... 3
Section 3. Hydronic Coil Assembly .. 4
Section 4. Install Hydronic Coil ......... 5
Section 5. Piping................................. 6
Section 6. Tables ................................. 7
Section 7. Ducting .............................. 7
Section 8. Field Wiring Diagrams ...... 8
Section 9. Piping for Water Heater .. 10
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HotWater
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INSTALLER'S GUIDE
Section 1. Safety Considerations
SAFETY HAZARD!
All joints must be leak free. Seal per local and national codes.
▲CAUTION
!
SAFETY HAZARD! Sharp Edge Hazard. Be careful of sharp
edges on equipment or any cuts made on sheet metal while install-
ing or servicing. Personal injury may result.
▲CAUTION
!
1.1 WARNINGS
IMPORTANT: Read this manual carefully before attempting to install,
operate, or perform maintenance on this hydronic coil. Installation,
service, and maintenance should be performed by qualified technicians
only.
NOTE: “Warnings” and “Cautions” appear at appropriate places in this
manual. Read these carefully. Your personal safety and the proper
operation of this heating product require that you follow them carefully.
The manufacturer assumes no liability for installations or services
performed by independent dealers.
Safety signal words are used to designate a degree or level of serious-
ness associated with a particular hazard. The signal words for safety
markings are WARNING and CAUTION.
▲WARNING
!
WARNING indicates a potentially hazardous situation which, if not
avoided, could result in property damage, death or serious personal
injury.
▲CAUTION
!
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It is also used to alert
against unsafe practices and hazards involving only property damage.
▲
WARNING
!
THE INFORMATION IN THIS GUIDE IS FOR USE BY INDIVIDUALS
HAVING ADEQUATE ELECTRICAL AND MECHANICAL BACK-
GROUND. ANY ATTEMPTS, BY UNQUALIFIED PERSONS, AT
PLUMBING, INSTALLING OR REPAIRING A HYDRONIC SYSTEM
OR CENTRAL AIR CONDITIONING PRODUCT COULD RESULT IN
PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH. THE
MANUFACTURER OR SELLER CANNOT BE RESPONSIBLE FOR THE
INTERPRETATION OF THIS INFORMATION, NOR CAN IT ASSUME
ANY LIABILITY IN CONNECTION WITH ITS USE.
▲
WARNING
!
ELECTRICAL HAZARD!
DISCONNECT ALL ELECTRICAL POWER, INCLUDING REMOTE
DISCONNECTS BEFORE INSTALLING OR SERVICING. FOLLOW
PROPER LOCKOUT/TAGOUT PROCEDURES TO ENSURE THE
POWER CAN NOT BE INADVERTENTLY ENERGIZED. FAILURE TO
FOLLOW THIS WARNING COULD RESULT IN SERIOUS PERSONAL
INJURY, DEATH, OR PROPERTY DAMAGE.
▲
WARNING
!
HIGH PRESSURE HAZARD!
MAXIMUM ENTERING WATER TEMPERATURE IS 180°F. WATER TEM-
PERATURES EXCEEDING 180°F COULD CAUSE A HIGH PRESSURE
BURST. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN
SERIOUS PERSONAL INJURY, DEATH, OR PROPERTY DAMAGE.
▲
WARNING
!
SCALD HAZARD!
THIS SYSTEM CONTAINS HOT WATER AND OPERATES UNDER
PRESSURE. WATER TEMPERATURES ABOVE 125°F CAN INSTANT-
LY CAUSE SEVERE BURNS OR DEATH.
USE CAUTION WHEN SERVICING THIS EQUIPMENT. ALLOW SUF-
FICIENT TIME FOR THE WATER TO COOL BEFORE OPENING THE
SYSTEM DRAIN. FAILURE TO FOLLOW THIS WARNING COULD
RESULT IN SERIOUS PERSONAL INJURY, PROPERTY DAMAGE, OR
DEATH.
▲
WARNING
!
LEAK HAZARD!
IF THE HYDRONIC COIL HAS A LEAK, USE CAUTION WHEN SERVIC-
ING THIS EQUIPMENT. THOROUGHLY WIPE OFF EXCESS WATER
FROM ALL COMPONENTS AND ALLOW ADEQUATE TIME FOR
THE COMPONENTS TO DRY COMPLETELY BEFORE SERVICING
SYSTEM.
FAILURE TO FOLLOW THIS WARNING COULD RESULT IN SERIOUS
PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH.
1.2 CAUTIONS
▲
WARNING
!
SAFETY HAZARD!
REMOVE ANY ELECTRICAL STRIP HEATERS WHEN INSTALLING
THE HYDRONIC HEATER COIL. ELECTRICAL AND HYDRONIC HEAT
MUST NOT BE USED TOGETHER. FAILURE TO FOLLOW THIS WARN-
ING COULD RESULT IN SERIOUS PERSONAL INJURY, DEATH, OR
PROPERTY DAMAGE.
FREEZE HAZARD! Installations subject to freezing ambient
temperatures must have provisions for freeze protection to avoid
damage to this appliance.
▲CAUTION
!
SAFETY HAZARD! The selected location and orientation
of the air handler and hydronic coil must allow the hydronic heating
unit's circulator pump to be positioned with the motor shaft horizon-
tal. Do Not install the hydronic coil with its service panel and the
circulator pump facing vertical, up, or down.
▲CAUTION
!

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INSTALLER'S GUIDE
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CAN/CSA-C22.2No. 236
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IMPORTANT - Follow all National and local codes when
installing this hydronic coil.
This accessory hydronic coil is designed to deliver primary or
secondary heating capacity and can be used in either a po-
table or non-potable water system. Maximum entering water
temperature is 180 °F.
1. Check the hydronic coil nameplate to confirm that the
selected hydronic coil is approved for use with the air
handler.
2. Check the components received for damage. Report any
defects or shortages to the transportation company im-
mediately.
NOTE - Since the hydronic coil mounts over the discharge
end of the air handler, it is necessary that the equipment
power enter from one of the side conduit entry points.
Section 2. General Information
Water Coil Model Numbers
Digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sample Coil number B A Y W A C C 1 1 S C 1 A A A
Brand B = Both Brands B
Product Type AY = Accessory A Y
Heat Type E = Electric Heater
W = Hot Water Coil W
Product Tier A = Air Handler Tier (5) A
V = Air Handler Tier (7 and 8)
C = Compact (Single Cabinet)
Size (Footprint) A-D = Minimum Cabinet Width C
A-D = Maximum Cabinet Width C
Electric Heat Input Electric Heat - kW
(05,08,10,15,20,25)
Hydronic Heat Input Hydronic Heat - 10,000 BTUH
(05,07,08,10)
1 1
Connection BK = Breaker
SC = Sweat / Solder S C
LG = Lugs
Power Supply 1 = 208-230/1/60 1
A = 200/1/50
3 = 208-230/3/60
9 = 115-1-60
0 = N/A
Major Design Modification Letter Sequence A
Minor Design Modification Letter Sequence A
Unit Parts Identifier Letter Sequence A
Additional support strap
on hydronic coil
NOTE - The hydronic coil can be installed in upflow, downflow,
or horizontal positions. When the air handler is installed in the
horizontal orientation, an additional strap must be used on the
coil section.

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INSTALLER'S GUIDE
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Section 3. Hydronic Coil Assembly
Field Pipe Connections:
7/8" OD, 3/4" ID, copper tubing
Hydronic Coil
12 Field Provided
Screws, 1/2" long
Coil Attachment
Flange
Gasket material
3/4"
18" 21-5/8"

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INSTALLER'S GUIDE
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STEP 2 - Place hydronic coil on top of the air handler
cabinet.
1. Flip coil over so the gasket is on the bottom and the
supply side flanges are facing up.
2. Set the coil on top of the air handler.
3. Align the coil with the air handler case.
Section 4. Install Hydronic Coil
STEP 1 - Place the hydronic coil with the supply side
facing down. Apply gasket material onto the coil
flanges. On the front flange, the gasket material must
be at the inner edge to create an airtight seal.
Gasket
Place gasket material
on the inner edge of
front side flange
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STEP 3 - Wrap the coil attachment flange around the
air handler and coil. It should have equal amounts of
material covering the coil and air handler cabinet.
1. Take the attachment flange and wrap it around the air
handler and coil.
2. Equal amounts of material should cover the coil and air
handler.
Supply Side
Supply Side

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INSTALLER'S GUIDE
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STEP 4 - Attach flange to air handler and coil.
1. Using field supplied screws, attach the coil attachment
flange to the air handler and the coil.
2. Use four screws minimum per side.
3. Recommended screw length is 1/2" long.
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Four screws Minimum per side
Recommended
piping directions
Section 5. Piping
NOTE - The hydronic coil can be installed in upflow,
downflow, or horizontal positions. When the air han-
dler is installed in the horizontal orientation, an addi-
tional strap must be used on the coil section.
STEP 1 - Attach piping to the hydronic coil.
1. Piping must consist of two vertical pipes or two
horizontal pipes.
2. Use a low temperature braze solder to attach pipes.
NOTE - The recommended piping directions are
upward, and to either the right or left side when in the
upflow orientation.
In all orientations, the water lines should not cross
over the air handler unit.
HOT WATER
OUT
HOT WATER
IN
IMPORTANT - Follow all National and local codes
when piping the hydronic system.

Page 7
INSTALLER'S GUIDE
Section 6. Performance Tables
Section 7. Ducting
Outlet dimension - 21-5/8" W x 18" D x 3/4" H
NOTE - Attach ducting per the air handler installation
guide, as well as National and local codes.
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GPM PD,Headwater(ft)
3 0.6
6 2.5
9 5.6
BAYWACC11SC1AAA
CFM GPM AirsidePressure
Drop,"W.C.
TotalCapacity,BTUH LeavingAirTemp,°F TotalCapacity,BTUH LeavingAirTemp,°F TotalCapacity,BTUH LeavingAirTemp,°F
322584 92 37898 106 52052 120
626957 96 44659 111 60251 127
928861 97 47528 113 66048 130
324485 90 41011 104 56072 116
629226 94 48327 109 64905 123
931291 95 51432 111 71149 126
326736 89 44387 101 60848 112
631913 93 52305 106 70434 119
934167 94 55666 108 77210 122
328609 87 47501 98 64994 109
634149 91 55974 103 75233 116
936561 92 59571 105 82471 119
330308 86 50331 96 68934 106
636176 90 59309 101 79793 113
938732 91 63120 103 87470 116
331878 85 52624 94 72182 103
638050 89 62011 99 83552 110
940738 90 65995 101 91591 113
BAYWACC11SC1AAA
EnteringAirTemperature70°Fdb,60°Fwb
120°FEnteringWaterTemp 150°FEnteringWaterTemp 180°FEnteringWaterTemp
1050 0.12
1200 0.15
1400 0.19
1600 0.24
1800 0.29
2000 0.35

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INSTALLER'S GUIDE
Field wiring
Yellow
Blue
SPDT Relay
w/24 VAC Coil
NO
NC
Red
Yellow
Orange
Blue
B
W
G
Y1
Y2
Y1
R
O
O
O
R
B
B
YI
W1
YO YO
Y2
BK
G
W2
W3
(In)
(Out)
Green
Comfort Control *
Series 7 Air Handler
Air Conditioner
Single Stage Cooling
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Notes:
* Heat Pump thermostat is required. Must be set in Heat Pump configuration.
1. It is recommend to use the enhanced mode blower delay profile. See the
Installer’s Guide for S2-3 and S2-4 settings.
2. Wiring must be made as shown for proper operation. Shown in de-energized position
Hydronic
Control
Typical Boiler
Wiring
B
T
T
Comfort Control
Heat Pump
Series 7 Air Handler
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Field wiring
Yellow
Blue
Black
(X2)
Red
Orange
Red
Yellow
Orange
Green
White
Blue
B
Y2
B - Blue
W
X2
G
Y1
Y1 - Yellow
R
O
O
R
B
YI
Y2
W1
YO
BK
G
W2
W3
R - Red
O - Orange
(In)
(Out)
W1 - White
Single Stage Heat Pump
Notes:
1. Emergency heat mode only delivers 50% airflow.
2. Hydronic heat is designed for supplemental heat during
compressor operation.
3. It is recommend to use the enhanced mode blower delay
profile. See the Installer’s Guide for S2-3 and S2-4 settings.
4. Wiring must be made as shown for proper operation.
Hydronic
Control
Typical Boiler
Wiring
B
W
T
T
Section 8. Field Wiring Diagrams for Series 7 Air Handlers
Notes:
1. For Family 7 air handlers, a relay and Heat Pump thermostat are required for cooling only application. For Heat Pump OD applications the relay is not required.
2. For Heat Pump systems, the hydronic coil is designed for Supplemental Heat. It is not designed for Emergency Heat.

Page 9
INSTALLER'S GUIDE
Comfort Control *
Series 7 Air Handler
Air Conditioner
Two Stage Cooling
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Field wiring
Yellow/Black
Blue
Red
Yellow
Green
Brown
Orange
Blue
B
W
G
Y1
Y2
R
O
O
R
B
YI
W1
YO
Y2
BK
G
W2
W3
(In)
SPDT Relay
w/24 VAC Coil
NO
NC
Y1
OB
YO
(Out)
Shown in de-energized position
Yellow
/Red
Brown
Notes:
* Heat Pump thermostat is required. Must be set in Heat Pump configuration.
1. It is recommend to use the enhanced mode blower delay profile. See the
Installer’s Guide for S2-3 and S2-4 settings.
2. Wiring must be made as shown for proper operation.
Hydronic
Control
Typical Boiler
Wiring
B
T
T
Comfort Control
Heat Pump
Series 7 Air Handler
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Field wiring
Yellow
Yellow/Red
Blue
Black
(X2)
Red
Orange
Red
Yellow
Brown
Orange
Green
White
Blue
B
Y2
B - Blue
W
X2
G
Y1
Y1 - Yellow
Y2 - Brown
R
O
O
R
B
YI
Y2
W1
YO
BK
G
W2
W3
R - Red
O - Orange
(In)
(Out)
W1 - White
Two Stage Heat Pump
Notes:
1. Emergency heat mode only delivers 50% airflow.
2. Hydronic heat is designed for supplemental heat during
compressor operation.
3. It is recommend to use the enhanced mode blower delay
profile. See the Installer’s Guide for S2-3 and S2-4 settings.
4. Wiring must be made as shown for proper operation.
Hydronic
Control
Typical Boiler
Wiring
B
W
T
T

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INSTALLER'S GUIDE
Section 9. Piping for Water Heater
Hot Water
In
Hot Water
Out
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Diagram of Suggested Installation Using a
Conventional Water Heater
Note: Follow National and local codes when installing
Hydronic System.
Cold Water
from Source
Hot Water
from Tank
Horizontal
Valve
Vertical
Valve
Conventional
Water Heater
Air Handler with
Add-on Hydronic Coil
Brass Swing
Check Valve
Brass Ball Valve
with Bleed Port
ASSE 1017
Mixing Valve