Installation, Operation and Maintenance Manual
VariCool
®
VAV
6
Subject to change without notice.
10.20-IM (0818)
General Information
VariCool units are cooling and optional heating systems
designed to effectively and efficiently maintain tenant
occupied spaces within floor by floor building structures.
Each VariCool unit delivers continuous air flow at varied
air volumes and constant temperature to maintain tenant
occupied space settings through field supplied VAV terminal
outlet boxes Each unit is designed for optimal energy
efficiency, reliability, IAQ, and lowered sound levels. Each
occupant then controls their specific zone by adjusting
temperature setting allowing the VAV terminal outlet box to
open to provide conditioned air As the VAV box opens, the
VariCool automatically adjusts to maintain the systems static
pressure set point
Multiple VariCool Systems may be networked together for
unit lead lag, back up/assist, and system rotation Options
are available for linking each system through a facilities
Building Management System (BMS)
Each unit is shipped in two/three pieces (depends on model
size) for ease on movement to the location of installation
EQUIPMENT INSPECTION
Upon receiving the unit, carefully inspect all sections for visible
or concealed interior/exterior damage If damage occurred
during transit, contact the freight carrier immediately and file
a damage claim report Inspect the unit data plate to verify
that the model unit that was ordered is the correct unit being
received All accessory components for the application that
must be field installed are shipped loose in one or several
boxes in the compressor section
HANDLING
Use extreme caution so that damage does not occur when
moving each section to the location of installation The unit
may be moved to the location of installation by crane, fork lift,
hand truck, or roller bars Units are provided with lifting rings
for rigging and movement by crane Spreader bars must be
used to protect section cabinet structure during movement
Protection must be used so that damage to the cabinet
does not occur when using cables or slings Be certain each
section is well supported when moving When using dollies,
fork lifts, hand trucks, or roller bars, make sure the sections
base rails are well supported and the weight of the sections
are distributed evenly so that dropping or damage does not
occur during movement
LOCATION AND CLEARANCES
The unit should be installed in an equipment room located
away from occupied tenant spaces Careful consideration
should be taken during system layout and installation to allow
for minimum required service clearances for the VariCool
unit Minimum clearances provided are worst case scenario
If the clearances were less around the cooling coil section
and a cooling coil had to be replaced, it would be difficult to
maneuver the coil around the unit unless a service access
door(s) to the mechanical room were located next to the
VariCool’s cooling coil end Figure 1 – Service Clearances
and Table 1 show minimum clearance requirements for each
model unit If the unit has an optional water side economizer
coil, the distance for service clearance must be maintained
from the edge of the filter rack which will mount onto the
economizer section on larger units but DX cooling coil
on smaller units as the economizer coil will be mounted
internally on smaller systems
Summary of Contents for VariCool VAV
Page 2: ......
