Cooling/Heating System - IEC Vertical F*C Series Installation, Operation & Maintenance Manual

The initial step in any startup operation shall be a final visual
inspection. All equipment, plenums, ductwork, and piping
shall be inspected to verify that all systems are complete
and properly installed and mounted, and that no debris or
foreign articles such as paper or drink cans are left in the
units or other areas.
Check each unit for loose wires, free blower wheel operation,
and loose or missing access panels or doors. Except as
required during startup and balancing operations, no fan
coil units shall be operated without all the proper ductwork
attached, supply and return grilles in place, and all access
doors and panels in place and secure. A clean filter of the
proper size and type must also be installed. Failure to do
so may result in damage to the equipment or building and
furnishings, and/or void all manufacturer warranties.

Cooling/Heating System

Prior to the water system startup and balancing, flush the
chilled/hot water systems to clean out dirt and debris which
may have collected in the piping during construction.
During this procedure, all unit service valves must be in the
closed position to prevent foreign matter from entering the
unit and clogging the valves and metering devices. Strainers
shall be installed in the piping mains to prevent such
material from entering units during normal operation.
During system filling, air venting from the unit is
accomplished by the use of the standard, manual air vent
fitting, or the optional, automatic air vent fitting installed
on the coil. Manual air vents are basically Schrader valves.
To vent the air from the coil, depress the valve until the air
has vented the coil. When water begins to escape through
the valve, release the valve. Automatic air vents may be
unscrewed one turn counterclockwise to speed initial
venting, but should be screwed in for automatic venting
after startup operations.
Figure 13: Manual Air Vent
Figure 14: Automatic Air Vent
International Environmental Corporation • Vertical F*C Series Fan Coil Installation, Operation, & Maintenance Manual
IEC Vertical F*C Series Fan Coils
INSTALLATION, OPERATION, & MAINTENANCE MANUAL
CAUTION: The air vent provided on the unit is
not intended to replace the main system air
vents and may not release air trapped in other
parts of the system. Independently inspect the entire
system for potential air traps and vent those areas as
required. In addition, some systems may require
repeated venting over a period of time to properly
eliminate air from the system.
Air Balance System
All ductwork must be complete and connected. All grilles,
filters, and access doors and panels must be properly
installed to establish actual system operating conditions
BEFORE beginning air balancing operations.
Each individual unit and the attached ductwork is a
unique system with its own operating characteristics. For
this reason, air balancing is normally done by balance
specialists who are familiar with all procedures required to
properly establish air distribution and fan-system operating
conditions. These procedures shall not be attempted by
unqualified personnel.
Exposed units without ductwork do not require air
balancing other than selecting the desired fan speed.
After proper system operation is established, the actual
unit air delivery and the actual fan motor amperage draw
for each unit should be recorded in a convenient place for
future reference.
Water Balancing System
A complete knowledge of the hydronic system, along with
its components and controls, is essential to proper water
system balancing. This procedure shall not be attempted
by unqualified personnel. The system must be complete,
and all components must be in operating condition BEFORE
beginning water system balancing operations.
Each hydronic system has different operating characteristics
depending on the devices and controls used in the system.
The actual balancing technique may vary from one system
to another.
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