Safety Considerations; Installation Instructions - MicroMetl ECD-SRTCB-D0 Install Manual

MicroMetl
Since 1965

SAFETY CONSIDERATIONS

Installation of this accessory can be hazardous due to system
pressures, electrical components and equipment, and equipment
locations (such as a roof or elevated surface). Only trained
qualified installers and service technicians should install, start-up,
and service this equipment.
When installing this accessory, observe precautions in the
literature and on any labels attached to the equipment and all
other safety precautions may apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care in handling and installing the accessory.
It is important to recognize safety information. This is the safety-
alert symbol . When you see this symbol on the unit and in
¡
instructions or manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result
in severe personal injury or death. WARNING signifies hazards
which could result in personal injury or death. CAUTION is used to
identify unsafe practices, which may result in minor personal injury
or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and wear
appropriate protective clothing, safety glasses and gloves when handling
parts and servicing roof top units.
CAUTION
!
Failure to follow this caution may result in personal injury and damage to
the unit. Cover the duct opening as a precaution so objects cannot fall into
the return duct opening. Be sure to remove the cover when installation is
complete.
IMPORTANT: These
economizer damper requirements as specified in ASHRAE
90.1, IECC and California's Title 24. Economizer must be
installed square to avoid damper leakage or damper
binding. Squareness tolerance is ± 1/32 inch.
IMPORTANT: Read these instructions completely
before attempting to install accessory economizer.

Installation Instructions

economizers meet
Read these instructions completely before attempting to
install the Accessory Ultra Low Leak Economizer.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury or death. Before
performing service or maintenance operations on the unit, always turn off
main power switch to unit and install lock(s) and lockout tag(s). Unit may
have more than one power switch. Ensure electrical service to rooftop unit
agrees with voltage and amperage listed on the unit rating plate.
GENERAL
The Economizer system utilizes. the latest technology available for
integrating the use of free cooling with mechanical cooling
for packaged rooftop units.
The -D0D* system comes standard with an outdoor air temperature
sensor. D00* includes only actuator, no sensors or controller provided.
This Economizer can be used with 1, 2, 3 or multiple speed indoor fan
motor units.
The Economizer system utilizes gear-drive technology with a direct-
mount spring return actuator that will close upon loss of power.
Economizer accessories require an actuator signal control. These
accessories do not include a controller. The economizer actuator is
operated by a signal from a field-supplied DDC controller or building
manufacturer system.
Standard integrated barometric relief dampers provide natural
building pressurization control. An optional power exhaust system is
available for applications requiring even greater exhaust capabilities.
An optional power exhaust system is available for applications requiring
even greater exhaust capabilities.
Unpack and inspect economizer contents from carton. Contact
MicroMetl immediately if any parts are missing or damaged
Table 1 - Package Contents
ECONOMIZER
PART NUMBER
all
ECD-SRT12CB-D0
ECD-SRT34CB-D0
ECD-SRT05CB-D0
Table 2 - Package Usage
UNIT SIZE
Small Cabinet,
Footprint size: 46 3/4" x 74 3/8"
Large Cabinet,
Footprint size: 58 1/2" x 88 1/8"
Extra-Large Cabinet,
Footprint size: 63 3/8" x 115 7/8"
1
Small Rooftop Units
Accessory Ultra Low Leak
Vertical Economizer
WARNING
!
QTY
CONTENTS
Economizer Damper Assembly
1
with Actuator
1 Hood Assembly with Top and 2 Sides
1 Hood Divider
1 Aluminum Filter (SRT05 gets 2)
1 Hardware Bag (Tapped to OA damper Blades)
PART NUMBER
ECD-SRT12CB-D0**
ECD-SRT34CB-D0**
ECD-SRT05CB-D0**
3 to 15 Tons