Trane BAYEVCC25BK1A Instrucciones de montaje
25 kW Supplementary
Electric Heater
for Air Handler Installations
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.
© 2012 Trane
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
18-GJ28D1-5
11/12
Models:
BAYEVCC25BK1A
Table of Contents
Section 1. Safety Information .......................................................................................................1
Section 2. General Information.....................................................................................................2
Section 3. Heater Assembly Labeled...........................................................................................2
Section 4. Adjust Heater ...............................................................................................................3
Section 5. Install Heater ................................................................................................................5
Section 6. Tables ..........................................................................................................................11
Section 7. Heater Operation........................................................................................................12
Section 1. Safety Information
▲
WARNING
!
SAFETY HAZARD! This information is intended for use
by individuals possessing adequate backgrounds of electrical
and mechanical experience. Any attempt to repair a central air
conditioning product may result in personal injury and/or property
damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in
connection with its use.
LIVE ELECTRICAL COMPONENTS! During in-
stallation, testing, servicing, and troubleshooting of this product,
it may be necessary to work with live electrical components.
Failure to follow all electrical safety precautions when exposed to
live electrical components could result in death or serious injury.
▲
WARNING
!
SAFETY HAZARD! Sharp Edge Hazard. Be careful of
sharp edges on equipment or any cuts made on sheet metal while
installing or servicing. Personal injury may result.
▲CAUTION
!
HAZARDOUS VOLTAGE! Disconnect all electric
power, including remote disconnects before servicing. Follow
proper lockout/tagout procedures to ensure the power can not
be inadvertently energized. Failure to disconnect power before
servicing could result in death or serious injury.
▲
WARNING
!
Page 2
INSTALLER'S GUIDE
This electric heater accessory is designed to provide
power directly to the air handler from the accessory
heater's power supply, eliminating the need for addi-
tional circuits. The power and control wiring each use
a single wire harness to connect the heater and the air
handler.
1. Check the heater nameplate to confirm that the selected
heater 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.
3. Be sure the power supply matches the listing shown on
the heater nameplate.
Section 2. General Information
Section 3. Heater Assembly Labeled
Heater Baffle
Retainer Tab and screw
- in document pack
Heater Rack
Breaker Bracket
Circuit Breakers
Electric Heat
Control Platform
Nameplate
Edge Guard
- in document pack
Base Plate
Cyclic Thermal
Limit Switch
Heater Element
Terminations
Width Adjustment Brackets
Breaker Bracket Cover
Retainer Tab and screw
- in document pack
Electric Heat Control - 24V
The two switches in the middle are
cyclic switches, The two switches
on the top and the one on the
bottom right are non-resettable
limit switches.
Non-cyclic
Thermal Limit Switch
Non-cyclic
Thermal Limit Switch
Page 3
INSTALLER'S GUIDE
Section 4. Adjust Heater
STEP 1 - Remove control box
The heater and control box are connected when they
are shipped. Before installation is started, the con-
trol box must be disconnected from the heater.
1. Disconnect the three 4-pin plugs between the
breakers and the heater.
2. Disconnect the ground on the 3-pin plug that is at
the right front of the heater and connected with a
ring terminal to the heater base plate.
3. Disconnect the two ground wires from the lug on
the heater base plate.
Note: It is recommended that the ducting be
attached and sealed before installing the heater. Ring terminal
ground
4-pin plugs
STEP 2 - Adjustment brackets
Two Width Adjustment Brackets are located at the
back of the heater assembly. The heater comes fac-
tory sized for the C cabinet. No modifications to the
Width Adjustment Brackets are required.
Width Adjustment Brackets
(two per unit)
Ground
Lug
20.5
Page 4
INSTALLER'S GUIDE
STEP 4 - (Optional) Rotate Circuit Breakers.
The need to reorient the Circuit Breaker Assembly
depends upon the orientation of your application
and which of the high voltage electrical conduit entry
points you use for high voltage wiring.
SAFETY HAZARD! Sharp Edge Hazard. Be careful of
sharp edges on equipment or any cuts made on sheet metal while
installing or servicing. Personal injury may result.
▲CAUTION
!
1. Pull out the tab on the back side of the breaker using
a long screwdriver.
2. Remove the circuit breaker from the control box and
rotate the circuit breakers 180 °.
Important: For air handler units installed in the
horizontal right position, the circuit breakers on
the heater must be rotated in order to comply with
National Electric Code (NEC Section 240.81). The
NEC requires that circuit breakers operated verti-
cally must be oriented so that the "on" position of the
breaker is upward.
Field
Connections
ON
Circuit
Breaker Control
Box
Breaker
Tab
Front
Pull
Pull
Back
Factory
Connections
Circuit Breaker Assembly
STEP 3 - Attach Retainer Tabs.
1. Add the Retainer tabs using the screws provided (both
tabs and screws are located in the documentation
packet).
Leave the screws slightly loose so that the tab can slide
to the left or right as needed. The tab will be used later
to engage in a slot within the air handler cabinet.
Note: The retainer tabs must be attached to the
heater base plate. Leave the screws slightly loose
so they can be slid to the left or right as needed.
2. The edge guard is located in the document pack. Install
the edge guard on the front of the heater flange as
shown.
Rounded
end inserts
into cabinet
Page 5
INSTALLER'S GUIDE
STEP 2 - Disconnect & Dispose of Pigtail Harness.
1. Remove the screw mounted wire tie that is holding the
pigtail harness and case ground wire to the cabinet.
Remove the wire tie from the two green ground wires.
2. Unplug and dispose of pigtail harness.
Section 5. Install Heater
STEP 1 - Remove Heater Compartment Panel.
Heater
Compartment
Panel
3. Place the circuit breakers back into the control box.
The tabs on the breakers are spring loaded and will
snap back to their locked position once the breakers
are properly seated.
Field
Connections
ON
Circuit
Breaker Control
Box
Factory
Connections
Circuit Breaker Assembly - Rotated
Pigtail
Harness
Wire Tie
Page 6
INSTALLER'S GUIDE
Important: If using a BAYSUPFLGA, B, or C Supply
Duct Flange Kit, install the kit before inserting the
heater.
STEP 3 - Insert heater assembly into heater compart-
ment.
1. Move factory wiring out of the way and into the grooves
provided in cabinet.
2. Slide heater into heater compartment of air handler.
STEP - 4Lock Retainer tabs.
Note: Retainer tabs are used to secure the heater
inside of the heater compartment.
1. Slide retainer tab into recess in air handler cabinet.
2. Tighten screws to hold tab securely.
3. Repeat actions to secure the other tab.
STEP 5 - Select a conduit entry point. See the
orientations on the following pages for entry point
selections.
1. Select the entry point on the control box cover you will
use to bring in your high voltage wiring.
2. Remove knockout from the entry point.
3. Remove the plug from the 1-1/2" hole in the cabinet.
4. After the ductwork is installed, secure the control box to
the top panel of the air handler.
Note: Use the low torque setting when attaching
the screws to the unit.
Retainer
Tab
Conduit Entry Points (4 total)
Page 7
INSTALLER'S GUIDE
Upflow - Route conduit, as shown.
Downflow - Route conduit, as shown.
Note: A minimum of 8" is required for installation and
servicing of the control box.
8" Min.
Page 8
INSTALLER'S GUIDE
Horizontal Left - Route conduit, as shown.
Horizontal Right - Route conduit, as shown.
Page 9
INSTALLER'S GUIDE
BLK
FACTORY FIELD
RED
RED
RED
GND
GND (2)
BLK
BLK
STEP 6 - Route conduit, if used, and wiring to the
entry point and connect.
1. Connect field supplied conduit to breaker box.
STEP 7 - Connect high voltage wiring
1. Connect high voltage field wiring.
2. Route the three 4-pin connectors, one 3-pin connector,
and two ground wires through the hole in the top panel.
2. Reconnect the ground wire coming from the 3-pin con-
nector to the heater base plate front using the screw
removed earlier. (See Section 4, Step 1 for illustration)
3. Reconnect the 3-pin plug on the heater to the 3-pin plug
in the air handler case.
4. Reconnect the two ground wires to the lug on the base
plate. See illustration in Step 8.
Note: Minimum terminal screw torque is 45 in-lbs.
STEP 8 - Plug Connections
1. Connect the three 4-pin connectors from the circuit
breakers to the three 4-pin connectors coming from the
heater. The connectors are labeled "Circuit1", "Circuit
2", and "Circuit 3". Line up the mating male and female
connectors and connect.
Note: One set of plugs has only two wires each.
2. Connect the field ground wire to the lug on the heater
base plate.
Field
ground
Lug
Page 10
INSTALLER'S GUIDE
STEP 9 - Connect low voltage wiring.
1. Connect the low voltage harness to Electric Heat Con-
trol as shown.
Low Voltage
Harness
STEP 10 - Place Wiring Diagram.
1. Attach the wiring diagram, included in the documenta-
tion packet, to the back of the heater compartment
panel.
Close up with other wires not shown
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