Qmark Environmental Hot Water / Steam Heated Air Curtains - Manual (Page 3)

3
Installation
1. Determine desired mounting location and using
template provided mark and drill holes for mounting
unit using appropriate hardware (not included).
NOTE: SEE WARNINGS AND MOUNTING
LIMITATIONS.
2. Mount cabinet onto wall and securely tighten hardware.
3. Reinstall motor/blower assembly into cabinet and
secure by replacing the wing nuts.
4. If multiple cabinet sections are used, attach the
grounding wires as required to properly bond the units.
5. Reconnect the motor/blower electrical cord assembly.
ELECTRICAL CONNECTIONS:
WARNING: ALL AIR CURTAINS SHOULD BE
INSTALLED BY QUALIFIED PERSONNEL.
WARNING: THIS FAN HAS AN INTERNAL SELF-
RESETTING THERMAL OVERLOAD PROTECTOR.
ALWAYS DISCONNECT FROM POWER SUPPLY
BEFORE SERVICING.
1. Connect motor per name plate to correct power supply.
Use adequate size wire for all branch and feeder runs.
2. Install all wiring, protection and grounding in accor-
dance with the National Electrical Code (NEC) and all
local requirements.
3. Remove two (2) screws holding the Outlet Box
Assembly in place. See Fig. 5. Keep these screws. It
will be required to re-install the assembly in step 6.
4. Remove the Outlet Box Assembly to expose knockouts
for power supply wiring. Remove assembly by
unlatching the bottom of the assembly from the back of
the cabinet. Put assembly aside for now to make
supply connections. Label on blower indicates voltage
connection of motor from factory. Compare with voltage
on nameplate and make sure the power supply to the
disconnect that will feed the unit are the same voltage.
5. Run wires from power supply disconnect to the outlet
box. Choose which knockout to use either from the
back of the cabinet or from the top of the cabinet. Use
appropriate wiring according to local code. Use a
flexible
connector to allow for possible angle
adjustments if necessary.
6. Connect wires with wire nuts (not included). Refer to
Wiring Diagram, Figure 6 and Figure 5. Connect black
supply lead to center terminal of rocker switch, white
supply (neutral) lead to white for 120 volt units. For 220
volt units, L2 will connect to white lead with black tape.
Connect green grounding lead to green grounded
conductor to supply circuit. Connect black and red
leads to rocker switch as shown in Figure 5. No loose
strands or loose connections should be present.
7. Re-install outlet box assembly by latching the bottom
first and by using the two screws removed in step 3.
Make sure no wire will be pinched between the outlet
box and the cabinet back wall, or between the cabinet
top and the cabinet right side panel. Make sure all
connections are tight.
8. From the outside of the cabinet on the top right corner,
remove three (3) screws. Refer to Fig. 5. Keep these
screws. It will be needed to replace the outlet box
cover. Carefully remove outlet box cover with the
rocker switch attached to it. Pull out of the cabinet only
as far as the length of the wires will allow. Inspect all
wires and make sure all connections are tight and the
ground wires are properly connected. Replace outlet
box cover. Make sure all wires are pushed inside the
compartment. Pre-seclect rocker switch postition to
high or low speed. See Operation Section for proper
setting instructions.
9. Unit is ready for operation. Restore power to the unit.
10. Upon completion of all installations, inspect unit for
excessive vibration during operation. If excessive
vibration is noticeable, disconnect power supply,
inspect
mounting installation, and refer to
troubleshooting chart for probable cause.
11. Replace intake grille with louvers facing down and
refasten knurled nuts.
AIR CURTAIN CONTROL
1. On/Off Control by hand – A three pole On/Off switch
may be used or the Supply Disconnect Switch may
also be used to put the unit on or off. A magnetic motor
starter is not required with manual On/Off control.
2. When automatic On/Off function is required, a Motor
Control Panel must be used. The Motor Control Panel
can be such that a micro switch may control the
On/Off function of the Panel. The micro switch may be
any dry contact switch or a thermostat. The panel may
be chosen such that the opening and closing of a door
may control the closing and opening of a single pole
contact of a door switch which in turn controls the
On/Off of the contactor in the Control Panel which will
turn the Air Curtain motors on and off.
3. These controls are all optional devices that are
external of the Air Curtain. These can be installed
between the Air Curtain and its Disconnect.
4. It is recommended all control devices to be used with
these Air Curtain units should be UL and or CSA
approved devices and all local codes be followed in
their use and installation.
CAUTION: MAKE SURE AMP RATING OF ANY
CONTROL DEVICE OR ON/OFF SWITCH EXCEEDS
NAMEPLATE AMP RATING OF MOTOR.
WARNING: ALWAYS DISCONNECT FROM POWER
SUPPLY BEFORE SERVICING. DO NOT DEPEND ON
THE ROCKER SWITCH TO TURN UNIT OFF WHEN
SERVICING THE UNIT.