VERTICAL STACK VS-IOM-00 01-19-09
INSTALLATION AND
MAINTENANCE INSTRUCTIONS
VSR, VSRM, VSRS, VSM/VSS
INSTALLER MUST BE A TRAINED, EXPERIENCED TECHNICIAN
1. INSTALLATION
1.1 BEFORE DRYWALL INSTALLATION:
1.1.1 Position unit to align risers with holes in floor. Lower into position. Should the units be
supplied with extensions, weld them to the top of the risers. Extensions for unit on
floor 1 is to be welded to the bottom of risers of the unit on floor 2. Follow this procedure
all the way up in each line.
1.1.2 Level the unit to ensure proper condensate drainage.
1.1.3 If necessary, anchor the unit to the floor through the bottom panel.
1.1.4 Pressure test the complete system.
1.1.5 Make all electrical connections (except for thermostats) inside the internal electric
junction box in accordance with the wiring diagram located on the blower housing. All
electrical work must be made in accordance with The National Electric Code, state and
local codes, bylaws, ordinances or the authority having jurisdiction.
1.2 APPLY DRYWALL to unit as required. Care must be taken not to penetrate any part of
the electrical or drain systems with the drywall screws. Do not allow drywall dust to enter
the unit. This can damage components, such as the motor, shorten component life and
reduce unit efficiency.
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VERTICAL STACK VS-IOM-00 01-19-09
INSTALLATION AND
MAINTENANCE INSTRUCTIONS
2. ELECTRICAL
2.1 All electrical connections are to be made in accordance with the National Electric
Code, state and local codes, bylaws, ordinances or the authority having jurisdiction.
Make all electrical connections inside the electric junction box by carefully
following the wiring diagram.
2.2 Adhere strictly to the electrical wiring diagram in order to avoid damage and/or
personal injury.
2.3 When the thermostat and fan switch are field supplied, the following are the minimum
electrical ratings:
- Thermostat (valve load) = 0.1A @ 115V
(0.05A @ 230V)
- Fan Motor(s) @ full load amps, FLA (@115V):
INSPECTION
3.
STANDARD MOTOR
SIZE FLA (Amps)
03 1.3
04 1.4
06 2.0
08 2.9
10 4.0
12 3.7
HIGH STATIC MOTOR
SIZE FLA (Amps)
03 1.6
04 1.6
06 2.9
08 3.5
10 4.3
12 4.0
3.1 Check that the electrical power to the unit is OFF.
3.2 Check that the disconnect switch mounted on the internal electric box is OFF.
3.3 Check drain pan for foreign materials.
3.4 Check fan and motor for foreign materials and freedom of movement.
3.5 Check that all wiring is properly terminated and the internal electric junction box is
properly covered.
3.6 Check that the filter is clean and secured in position.
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