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Unitary products group WHOLE HOUSE DEHUMIDIFIER Installationshandbuch

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819288-UIM-A-0212
MODULAR
NON-VARIABLE SPEED AIR HANDLERS
MODELS: MA
INSTALLATION MANUAL
ISO 9001
Certified Quality
Management System
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ELECTRIC HEATER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 5
LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . .6
REQUIRED CONTROL
SET-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
BLOWER SPEED CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 8
UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LIST OF FIGURES
Typical Installation with MC Multi-Position Coils . . . . . . . . . . . . . . . . .3
Coil and Air Handler Attachment Details . . . . . . . . . . . . . . . . . . . . . . .3
Gasket Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions & Duct Connection Dimensions . . . . . . . . . . . . . . . . . . . .4
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
460V - Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Blower Speed Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
460V - Blower Speed Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cooling Models with Electric Heat Wiring . . . . . . . . . . . . . . . . . . . . . 15
Single-Stage Cooling Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LIST OF TABLES
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Low Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Low Fan Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Blower Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Heat Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Data - Cooling Only (60 Hz) - 208/230 . . . . . . . . . . . . . . . . . 9
Electrical Data - Cooling Only (60 Hz) - 460 . . . . . . . . . . . . . . . . . . . .9
Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Data - 1 Ø - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Data - (For Multi-Source Power Supply) -
Copper Wire 1 Ø - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Electrical Data - (For Single Source Power Supply) -
Copper Wire 1 Ø - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Data - 3 Ø - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Data - (For Multi-Source Power Supply) -
Copper Wire 3 Ø - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Data - (For Single Source Power Supply) -
Copper Wire 3 Ø - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Data - 460-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical Data - (For Single Source Power Supply) -
Copper Wire 3 Ø - 460-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Air Flow Data - 60 Hz Models (230 & 460 Volt) . . . . . . . . . . . . . . . . 13
Air Flow Data - 60 Hz Models (208 Volt) . . . . . . . . . . . . . . . . . . . . . 14
SECTION I: GENERAL
This modular air handler provides the flexibility for installation in any
upflow, downflow, or horizontal application. These versatile models may
be used for cooling or heat pump operation with or without electric heat.
A BRAND LABEL (available from Distribution) may be applied to the
center of the blower access panel.
The unit can be positioned for bottom return air in the upflow position,
top return air in the downflow position, and right or left return in the hor-
izontal position.
Top and side power wiring and control wiring, accessible screw termi-
nals for control wiring and easy to install electric heaters all combine to
make the installation easy, and minimize installation cost.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury
.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury
.
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 dam-
age.
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage.
A fire or electrical hazard may result causing property damage, per-
sonal injury or loss of life.
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Inhaltsverzeichnis

Seite 1 - INSTALLATION MANUAL

819288-UIM-A-0212MODULARNON-VARIABLE SPEED AIR HANDLERSMODELS: MAINSTALLATION MANUALISO 9001Certified QualityManagement SystemLIST OF SECTIONSGENERAL

Seite 2

819288-UIM-A-021210 Unitary Products Group* May be 0 (no breaker) or 1 (with breaker).TABLE 11: Electrical Data - 1 Ø - 208/230-1-60ModelsMAHeat Kit -

Seite 3 - HORIZONTAL LEFT

819288-UIM-A-0212Unitary Products Group 11* May be 0 (no breaker) or 1 (with breaker).TABLE 13: Electrical Data - (For Single Source Power Supply) - C

Seite 4 - DUCT CONNECTORS

819288-UIM-A-021212 Unitary Products Group2. Heaters are 3 Phase.TABLE 15: Electrical Data - (For Multi-Source Power Supply) - Copper Wire 3 Ø - 208/2

Seite 5 - INSTALLATION

819288-UIM-A-0212Unitary Products Group 13All MA series air handler units are UL Listed up to 0.50" w.c. external static pressure, including air

Seite 6 - SECTION VI: REQUIRED CONTROL

819288-UIM-A-021214 Unitary Products GroupAll MA series air handler units are UL Listed up to 0.50" w.c. external static pressure, including air

Seite 7

819288-UIM-A-0212Unitary Products Group 15* Optional dehumidification humidistat switch contacts open on humidity rise.Notes:1. “Y” Terminal on Air Ha

Seite 8 - SECTION VIII: BLOWER SPEED

Subject to change without notice. Published in U.S.A. 819288-UIM-A-0212Copyright © 2012 by Johnson Controls, Inc. All rights reserved. Supersedes: 26

Seite 9 - SECTION IX: UNIT DATA

819288-UIM-A-02122 Unitary Products Group1. Install this air handler only in a location and position as specified inSECTION III of these instructions.

Seite 10 - 10 Unitary Products Group

819288-UIM-A-0212Unitary Products Group 3DOWNFLOW AND HORIZONTAL CONVERSIONThese air handler units are supplied ready to be installed in a upflow,down

Seite 11 - Unitary Products Group 11

819288-UIM-A-02124 Unitary Products GroupDUCT CONNECTORSAir supply and return may be handled in one of several ways bestsuited to the installation. Se

Seite 12 - 12 Unitary Products Group

819288-UIM-A-0212Unitary Products Group 5Duct work should be fabricated and installed in accordance with localand/or national codes. This includes the

Seite 13 - Unitary Products Group 13

819288-UIM-A-02126 Unitary Products GroupSECTION V: LOW VOLTAGE CONTROL CONNECTIONSThe 24 volt power supply is provided by an internally wired low vol

Seite 14 - 14 Unitary Products Group

819288-UIM-A-0212Unitary Products Group 7External Relay OutputsThe control includes three outputs to drive external relays having 24VAC coils. The out

Seite 15 - SECTION X: MAINTENANCE

819288-UIM-A-02128 Unitary Products GroupSECTION VII: LINE POWER CONNECTIONSPower may be brought into the unit through the supply air end of theunit (

Seite 16 - SECTION XI: WIRING DIAGRAM

819288-UIM-A-0212Unitary Products Group 9SECTION IX: UNIT DATATABLE 7: Physical and Electrical DataModels: MA MA08BN21 MA12BN21 MA12BN41 MA14DN21Blowe

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