INSTALLER'S
WARNING:
WARNING
GUIDE
ALL phases of this installation must comply with NATIONAL,
STATE AND LOCAL CODES
Models:
BAYHTRJ505BRKAA
BAYHTRJ508BRKAA
BAYHTRJ510BRKAA
18-HB24D12
Supplementary
Electric Heaters
for JMM4&5 Wall-Mount Air Handlers
IMPORTANT —
This Document is customer property and is to remain w ith this unit. Please return to service information pack upon completion of w ork.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
GENERAL
This accessory electric heater is designed to provide
pow er directly to the unit from the accessory heater' s
pow er supply eliminating the need for additional
circuits. The pow er and control w iring use a single
polariz ed plug to connect the heater and the unit.
See the Heater Data tab le on page 3 for the numb er
of circuits req uired.
1. Check the unit heater lab el to confirm that the
selected Heater is approved for use w ith this unit
in the installed confiuration.
2. Check the components received for damage. R eport
any defects or shortages to the transportation
company immediately.
3 . Be sure the pow er supply agrees w ith the listing
show n on heater nameplate.
WARNING
SAFETY HAZARD! This information is intended for use b y
individuals possessing adeq uate b ack grounds of electrical
and mechanical exp erience. Any attempt to repair a central air
conditioning product may result in personal inj ury and/ or
property damage. The manufacturer or seller cannot b e
responsib le for the interpretation of this information, nor can it
assume any liab ility in connection w ith its use.
THIS PRODUCT CONTAINS FIBERGLASS WOOL INSULATION! FIBERGLASS DUST AND CERAMIC FIBERS ARE BELIEVED BY THE STATE OF CALIFORNIA TO CAUSE CANCER THROUGH INHALATION. GLASSWOOL FIBERS MAY
ALSO CAUSE RESPIRATORY, SKIN, OR EYE IRRITATION.
PRECAUTIONARY MEASURES
• Avoid breathing fiberglass dust
• Use a NIOSH approved dust/mist respirator
• Avoid contact with the skin or eyes. Wear long-sleeved,
loose fitting clothing, gloves, and eye protection.
• Wash clothes separately from other clothing, rinse
washer thoroughly.
• Operations, such as sawing, blowing, tear-out, and
spraying may generate fiber concentrations requiring
additional respiratory protection. Use the appropriate
NIOSH approved respirator in these situations.
FIRST AID MEASURES
EYE CONTACT: FLUSH EYES WITH WATER TO RE-
MOVE DUST. IF SYMPTOMS PERSIST,
SEEK MEDICAL ATTENTION.
SKIN CONTACT: WASH AFFECTED AREA GENTLY
WITH SOAP AND WARM WATER AFTER HANDLING.
WARNING
CAUTION
SAFETY HAZARD! Sharp E dge Haza rd. Be careful of sharp
edges on eq uipment or any cuts made on sheet metal w hile
installing or servicing. Personal inj ury may result.
HAZARDOUS VOLTAGE!
Disconnect all electrical pow er, including remote disconnects
b efore installing or servicing. Follow proper lock out/ tagout
procedures to ensure the pow er can not b e inadvertently
energize d. Failure to disconnect pow er b efore servicing could
result in death or serious inj ury.
INSTALLER'S GUIDE
NO TE: Illust rat ions m ay va ry f rom t he act ual unit b y ca b inet and heat er s ize .
INSTALLATION
1. R emove the upper access panel from
the fan coil unit.
3 . I nstall the electronic-control into the space on the left
hand side and attach w ith screw s provided in the k it.
2. R emove the cover plate from the fan coil opening
and save the screw s for the nex t step. I nstall the
heater k it and secure the element plate w ith the
2 screw s removed from the cover plate plus a 3 rd
screw provided w ith the k it.
Figure 2Figure 1
4. Connect the electric heaters to the air handler
using the Heater K it Plug. Connect high voltage to
the circuit b reak er lugs and ground lug per the
w iring schematic and air handler installation guide.
Figure 3
5 . Cover the upper access panel on the fan coil unit.
Figure 5
Page 2
Figure 4
18-HB24D1-2
INSTALLER'S GUIDE
HEATER TABLES
IM P O RTANT: The B AY HTRJ5* * elec t ric heat ac c es s ory inc lud es one 60 am p c irc uit b reak er t o prov id e
an elec t ric al d is c onnec t f or s erv ic e pers onnel t hat is int end ed t o help prot ec t int ernal elec t ric al c om ponent s
in t he ev ent of a s hort c irc uit or ground f ault . As d es igned , t he c irc uit b reak ers s upplied in t he B AY HTRJ5* *
ac c es s ory DO NO T prov id e ov er c urrent prot ec t ion of t he b ranc h c irc uit . Theref ore, t he b ranc h c irc uit ( s )
s hall b e s iz ed and prot ec t ed ac c ord ing t o t he unit nam eplat e.
BAY HTR -- HE ATE R DATA
240 V olt 20 8 V olt
Heater M odel N o
N o Heater
BAY HTR J5 0 5 BR K AA
N o. of
Circuits/
Phases
1/ 1 5 17 10 0 20 . 8 3 . 8 1280 0 18
Capacity
kW BTU H kW BTU H
Heater
Amps per
Circuit
Capacity
Heater
Amps per
Circuit
BAY HTR J5 0 8BR K AA
BAY HTR J5 10 BR K AA
N ote: For model specific electrical data, see the w all mount air handler I nstaller' s G uide or Sub mittal.
JMM4 SERIES MINIMUM HEATER AIRFLOW CFM - HEATER MATRIX
Model No.
JMM4A0A18S21SAA Low Low Low Low Low Low
JMM4A0A24S21SAA Low Low Low Low Low Low
JMM4A0B30S21SAA Low Low Low Low Low Low
JMM4A0B36S31SAA Low Low Low Low Low Low
JMM5 SERIES MINIMUM HEATER AIRFLOW CFM - HEATER MATRIX
Model No.
JMM5A0A24M21SAA High High High High High High
JMM5A0B30M21SAA Medium Medium Medium Medium Medium Medium
JMM5A0B36M31SAA Medium Medium Medium Medium Medium Medium
1/ 1 7 . 5 25 60 0 3 1. 2 5 . 6 19 20 0 27 . 1
1/ 1 10 3 410 0 41. 7 7 . 5 25 60 0 3 6. 1
BAYHTRJ505BRKAA BAYHTRJ508BRKAA BAYHTRJ510BRKAA
Without HP With HP Without HP With HP Without HP W ith HP
BAYHTRJ505BRKAA
Without HP With HP Without HP With HP Without HP W ith HP
BAYHTRJ508BRKAA BAYHTRJ510BRKAA
Page 318-HB24D1-2
INSTALLER'S GUIDE
6
5
4
3
2
1
HEATER KIT PLUG
5kW HEAT KIT
- - - -FIELD POWER WIRING
FACTORY POWER WIRING
6
5
4
3
2
1
HEATER KIT PLUG
BLUE
WHITE
RED
BLUE
WHITE
W1
W1
LEGEND:
8
6
4
2
L2’
L1’
L2
L1
GROUND
LUG
8
6
4
2
8
6
4
2
RED
10kW HEAT K IT
7.5kW HEAT K IT
- - - -FIELD POWER WIRING
FACTORY POWER WIRING
LEGEND:
GROUND
LUG
L1’
L1
L2’
L2
7.5kW CB 1 50A
10kW CB 1 60A
Note: The electric heater has been evaluated with the end product of
the JMM4 and JMM5 series wall-mounted unit by the ETL certification.
Since the manufacturer has a policy of continuous product and
product data improvement, it reserves the right to change design
and specification without notice.
Page 4
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