Johnson Controls Ducted Systems
5724452-UIM-A-0619
STANDARD ECM
MODULAR MULTI-POSITION
AIR HANDLERS
MODELS: ME SERIES - 208/230 V - 1 PHASE
INSTALLATION MANUAL
ISO 9001
Certified Quality
Management System
LIST OF SECTIONS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DUCT WORK AND CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRIC HEATER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 6
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LOW VOLTAGE CONTROL CONNECTIONS . . . . . . . . . . . . . . . . . . 7
BLOWER SPEED CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 7
UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
AIR SYSTEM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TYPICAL THERMOSTAT CONNECTIONS . . . . . . . . . . . . . . . . . . . 14
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TYPICAL THERMOSTAT CONNECTIONS . . . . . . . . . . . . . . . . . . . 17
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LIST OF FIGURES
Return Air Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Coil and Air Handler Attachment Details . . . . . . . . . . . . . . . . . . . . . . . 3
Gasket Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions and Duct Connection Dimensions . . . . . . . . . . . . . . . . . . 4
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Duct Work Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Blower Speed Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Duct Static Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Typical Thermostat Wiring Diagram - Single Stage
Outdoor - ECM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring Diagram - Standard ECM - Single Phase Heat Kits . . . . . . . 15
Wiring Diagram - Three Phase Heat Kits . . . . . . . . . . . . . . . . . . . . . 16
Typical Thermostat Wiring Diagram - 2 Stage Heat Pump with
ECM Blower Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
LIST OF TABLES
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Physical and Electrical Data - Cooling Only . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data - Cooling Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Minimum Fan Speed - Electrical Heat with Heat Pump . . . . . . . . . . . . 8
Default Blower Speeds for FER Compliance - Electrical Heat Only . . 9
KW and MBH Conversions - For Total Power Input Requirement . . . . 9
Electric Heat Performance Data: 208/230-1-60 and 208/230-3-60 . . 9
Electrical Data for Single Source Power Supply: 208/230-1-60 . . . . 10
Electrical Data for Multi-source Power Supply: 208/230-1-60 . . . . . 11
Electrical Data for Single Source Power Supply: 208/230-3-60 . . . . 11
Electrical Data for Multi-source Power Supply: 208/230-3-60 . . . . . 12
Airflow Data (CFM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SECTION I: GENERAL
The ME modular air handler series provides the flexibility for installation
in any position. This unit may be used for upflow, downflow, horizontal
right, or horizontal left applications.
These units may be located in a closet, utility room, attic, crawl space,
or basement. These versatile models may be used for cooling or heat
pump operation with or without electric heat or indoor coil.
Top or side power and control wiring, color coded leads for control
wiring, and electric heaters all combine to make the installation easy
and minimize installation cost.
Electric heat kits are available as field installed accessories. Single
phase kits are available from 2.5 kW to 25 kW. 208-230 volt three
phase kits are available from 10 kW to 25 kW.
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
damage.
WARNING
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, personal injury or loss of life.
WARNING
The air handler area must not be used as a broom closet or for any other
storage purposes, as a fire hazard may be created. Never store items
such as the following on, near or in contact with the furnace.
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum clean-
ers or other cleaning tools.
2. Soap powders, bleaches, waxes or other Cleaning compounds;
plastic items or containers; gasoline, kerosene, cigarette lighter
fluid, dry cleaning fluids or other volatile fluid.
3. Paint thinners and other painting compounds.
4. Paper bags, boxes or other paper products
Never operate the air handler with the blower door removed. To do so
could result in serious personal injury and/or equipment damage.
!
!
