Instruction manual

Page 4 of 32 OM 751
If the unit ventilator is to be used for temporary heating or cooling,
the unit must first be properly commissioned. Failure to comply
with this requirement will void the warranty.
Follow all safety codes. Wear safety glasses and work gloves. Use a
quenching cloth for brazing operations. Have a fire extinguisher available.
Follow all warnings and cautions in these instructions and attached to
the unit. Consult applicable local building codes and National Electrical
Codes (NEC) for special requirements.
Recognize safety information. When you see a safety symbol on the
unit or in these instructions, be alert to the potential for personal injury.
Understand the meanings of the words DANGER, WARNING, and
CAUTION. DANGER identifies the most serious hazards that will result
DISCONNECT ALL ELECTRICAL
POWER BEFORE SERVICING UNIT
TO PREVENT INJURY OR DEATH
DUE TO ELECTRICAL SHOCK.
WARNING
HAZARDOUS VOLTAGE!
DISCONNECT ALL ELECTRIC POWER IN-
CLUDING REMOTE DISCONNECTS BEFORE
SERVICING. FAILURE TO DISCONNECT
POWER BEFORE SERVICING CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
!
CAUTION
USE COPPER CONDUCTORS ONLY.
UNIT TERMINALS ARE NOT DESIGNED TO
ACCEPT OTHER TYPES OF CONDUCTORS.
FAILURE TO DO SO MAY CAUSE DAMAGE
TO THE EQUIPMENT.
!
!
DANGER
NOTICE
WARNING
!
WARNING
!
CAUTION
!
CAUTION
!
Static sensitive components. A static discharge while handling
electronic circuit boards can cause damage to the
components.
Discharge any static electrical charge by touching the bare metal
inside the main control panel before performing any service work.
Never unplug any cables, circuit board terminal blocks, relay
modules, or power plugs while power is applied to the panel.
Extreme temperature hazard can cause damage to system
components.
This MicroTech II controller is designed to operate in ambient
temperatures from -40°F to 158°F. It can be stored in ambient
temperatures from -65°F to 176°F. The controller is designed to
operate in a 10% to 90% RH (non-condensing) and be stored in a
5% to 95% RH (non-condensing) environment.
in death or severe personal injury; WARNING means the hazards can
result in death or severe personal injury; CAUTION identifies unsafe
practices that can result in personal injury or product and property
damage.
Improper installation, adjustment, service, maintenance, or use can
cause explosion, fire, electrical shock, or other conditions which may
result in personal injury or property damage. This product must be
installed only by personnel with the training, experience, skills, and
applicable licensing that makes him/her “a qualified professional
HVACR installer.”
SAFETY INFORMATION
This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with this
instruction manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
McQuay
®
International disclaims any liability resulting from
any interference or for the correction thereof.
Electric shock hazard. Can cause personal injury or equipment
damage.
This equipment must be properly grounded. Connections and
service to the MicroTech II control panel must be performed only by
personnel that are knowledgeable in the operation of the equipment
being controlled.
CAUTION
!
For proper space control, and a more trouble free unit operation, it
is important that an occupancy control means be used such that the
unit is placed into unoccupied mode during regular low load
conditions such as nighttime, weekends and holidays.
Hot Surface! Do not touch surface.
Can cause minor to severe burns.
WARNING
!
Hazardous Voltage! Disconnect all electric power before
servicing.
Failure to disconnect power (including remote disconnects) before
servicing can cause severe personal injury or death.
WARNING
!
Rotating Fan Blade! Disconnect all electric power before
servicing.
Failure to disconnect power (including remote disconnects) before
servicing can cause severe personal injury or death.
WARNING
!