Specifications
24
JOHNSON CONTROLS
Form 201.28-NM1.EN.PED/CE (0211)
INSTALLATION
FIGURE 5 - ACCEPTABLE MINIMUM CLEARANCES
AROUND/BETWEEN UNIT(S)
1.8 m (6')
Minimum
1.2 m (4')
Minimum
3 m (10')
Minimum
Control Panel
Tube Removal
Clearance Area
Tube Removal
Clearance Area
TABLE 1 - MINIMUM EVAPORATOR TUBE
REMOVAL CLEARANCE
MODEL YVAA
TUBE REMOVAL
CLEARANCE DIMENSIONS
ABC
FRAME EVAP COND IN. MM IN. MM IN. MM
054 3 B 26 663 36 914 132 3353
056 5 B 26 663 36 914 132 3353
058 8 C 26 663 36 914 156 3962
064 3 A 26 663 36 914 144 3658
066 5 A 26 663 36 914 144 3658
068 8 B 26 663 36 914 132 3353
070 0 C 26 663 36 914 156 3962
074 3 A 26 663 36 914 144 3658
076 5 C 26 663 36 914 156 3962
078 8 C 26 663 36 914 156 3962
084 3 B 26 663 36 914 132 3353
086 5 C 26 663 36 914 156 3962
088 8 C 26 663 36 914 156 3962
094 3 B 26 663 36 914 132 3353
096 5 E 26 663 36 914 192 4877
098 8 E 26 663 36 914 192 4877
Clearance dimensions provided in Figure
5 are necessary to maintain good airfl ow
and ensure correct unit operation. It is also
necessary to consider access requirements
for safe operation and maintenance of the
unit and power and control panels. Local
health and safety regulations, or practical
considerations for service replacement of
large components, may require larger
clearances than those recommended.
VIBRATION ISOLATORS
Optional sets of vibration isolators can be supplied loose
with each unit.
Using the Isolator tables shipped with the unit in the
information pack. Identify each mount and its correct
location on the unit.
Installation
Place each mount in its correct position and lower the unit
carefully onto the mounts ensuring the mount engages in
the mounting holes in the unit base frame.
On adjustable mounts, transfer the unit weight evenly to
the springs by turning the mount adjusting nuts (located
just below the top plate of the mount) counterclockwise
to raise and clockwise to lower. This should be done
two turns at a time until the top plates of all mounts are
between 1/4" (6 mm) and 1/2" (12 mm) clear of top of
their housing and the unit base is level.
SHIPPING BRACES
The chiller’s modular design does not require shipping
braces.
CHILLED LIQUID PIPING
General Requirements
The following piping recommendations are intended to
ensure satisfactory operation of the unit(s). Failure to
follow these recommendations could cause damage to
the unit, or loss of performance, and may invalidate the
warranty.
The maximum fl ow rate and pressure drop
for the cooler must not be exceeded at any
time. Refer to Section 5 - Technical Data
for details.
The liquid must enter the cooler at the
inlet connection. The inlet connection for
the cooler is at the control panel end of the
cooler.
A flow switch must be installed in the
customer piping at the outlet of the cooler
and wired back to the control panel using
shielded cable.