McQuay FCVC, Руководство по установке и обслуживанию

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McQuay IM 980-1 17
Operation and Maintenance
Leveling Legs Option
Field or factory-installed kits are available with 0” to 1"
adjustment for positive leveling of floor-mounted units.
Height Adjustment
To adjust the height of a leveling leg:
1 Loosen the locking nut on the leveling leg bolt with a
9/16-inch wrench.
2 Turn the leveling leg bolt clockwise to lower the unit or
counterclockwise to raise it.
3 When you are finished adjusting the height, hold the
leveling leg bolt in place and draw the locking nut up
tight against the mounting bracket.
Figure 23: Leveling Legs Adjustment
Cabinet Rear Extension Kit
The field-installed cabinet rear extension option may be
utilized to place the fan coil farther out from the wall than the
standard unit allows. Refer to
page 41 for more details.
Figure 24: Cabinet Rear Extension Kit
Electric Heat Over-Temp Reset Button
The elecric heat options comes with two over-temperature
switches. The first resets automatically when the over-
temperature condition no longer exists. The second, backup
switch must be reset manually.
Note: The need to reset the manual switch may indicate that
there are improperly functioning system components. If
the switch trips again, contact McQuay Factory Service
for help in diagnosing the cause.
To reset the manual switch, carry out the following steps:
1 Disconnect all power to the unit. Verify the power has
been disconnected.
2
Remove the main drain pan and motor assembly from
the unit (see
Accessing/removing the main drain pan and
motor assembly‚ page 19 ).
3
Access and push in the red reset button. See Figure 25 .
Figure 25: Electric Heat Over-Temp Reset Button Location
4
Reinstall the drain pan and motor assembly.
5
Reconnect the power.
To adjust height, loosen the locking nut
with a 9/16” wrench. Then, turn the
leveling leg bolt head clockwise to raise
the unit, or counterclockwise to lower it.
Cabinet
Rear
Extension
Vertical
Fan Coil
Unit
DANGER
Personal Injury Hazard.
Power supply can cause electrical shock. Always disconnect
power to unit before servicing.
Push the red reset button