McQuay Skyline IM 777-1, Руководство по установке и обслуживанию

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McQuay IM 777-1 5
Installation Guidelines
Access Doors and Panels
For routine maintenance, access normally is obtained through
access doors or by removing side panels. Removing all flat
head fasteners along the sides of a panel allow it to be
removed.
Fan and filter sections are always provided with a service door
on one side of the unit. If requested on order, doors can be
provided on both sides of the unit. Optional service doors are
available for most section types and are provided based on
customer request.
Note – Opening fan section doors requires using a 1/2" socket
wrench, which satisfies ANSI standards and other codes
that require the “use of tools” to access compartments
containing moving parts or electrical wiring. See
Figure 10.
1
Remove padlock if one is present.
2
Insert 1/2" socket into cup and rotate 1/4 turn clockwise as
shown in Figure 10. If the cup and handle are on the left
side of the door, rotate 1/4 turn counterclockwise.
3
Rotate the door handle 1/4 turn clockwise and then 1/4 turn
counterclockwise to release any internal pressure or
vacuum and open the door. If the cup and handle are on the
left side of the door, rotate the door handle 1/4 turn
counterclockwise and then 1/4 turn clockwise.
4
To prevent air leakage, tighten the door panels by adjusting
the jam nuts.
Figure 10: Opening fan section door
Injected-Foam Insulated Panels
Skyline air handlers now are furnished with double-wall,
injected-foam insulated panels. Foam panels are stronger,
more rigid, and lighter than panels with fiberglass insulation.
The insulation R-value is improved to 13. However, foam
insulation can burn when exposed to flame or other ignition
sources and release toxic fumes. Take care in cutting and
sealing all field-cut openings in these panels.
Panel cutting procedure
1
Determine the number and location of holes required for
electrical conduit, piping, and control wiring as follows:
•
Check that adequate space is available inside the unit for
conduit or pipe routing.
•
Do not locate holes in a panel that provides access to key
maintenance components such as filters and fan
assemblies.
•
Do not locate where the conduit or piping blocks airflow
or obstructs hinged access doors.
2
Once a proper location is determined, drill a small pilot
hole completely through the panel. Then use a sharp hole
saw or a saber saw and cut from each side of the panel.
CAUTION
SHARP EDGES AND COIL SURFACES
are a potential injury hazard. Avoid contact with them.
ATTENTION
Les bords tranchants et les surfaces des bobines sont un
risque de blessure. Ne les touchez pas.
CAUTION
DO NOT attempt to rotate the cup.
Damage to the unit will occur.
ATTENTION
NE PAS tenter de faire tourner la cuvette (cup).
Ceci va dendomagger l’unité.
OPEN
View from inside door
Jam
Nuts
Do Not Rotate Cup