Enviro VB09-36, Установка, эксплуатация и обслуживание, Страница: 11 / 40

FORM ET145.18-IOM1 (115)
ENVIRO-TEC 11
3. RISER / CABINET INSTALLATION
A. CABINET PLACEMENT
Refer to Figure 2, which shows the correct location of the
cabinet in relation to the floor sleeve and risers.
Do not use the risers to lift or move cabinets.
Risers must not be used to lift cabinets. Risers are not
designed to support or lift any part of the cabinet. Risers are
attached using nylon ties to allow for slight adjustments during
installation, and expansion of riser column during operation.
Care must be taken during installation to avoid damage to
risers and riser stub-outs.
Improper handling and installation of risers could
damage riser stub-outs and valves could result in
property damage, death or serious injury.
Do not allow the risers to bottom out. Riser stub-out
should be centrally located with cabinet riser stub-
out opening. Do not allow riser stub outs or risers
to contact cabinet sheet metal.
Do not drag risers on floor while moving the
cabinet.
For orders where risers are shipped loose, riser installation
can be done first before installation of cabinets. During riser
installation ensure riser stub-outs will be centered in the
cabinet openings. Do not allow risers to bottom out in swage.
Where risers are shipped attached to cabinets, installation of
risers and cabinets is done at the same time without the need
to detach risers from cabinet.
1. Place the cabinet in a horizontal position on the floor
adjacent to its installation location (when risers are
attached to cabinet).
2. The units are designed to accommodate a maximum
supply and return riser stub-out movement of 1-1/2
inches, due to expansion and contraction (total movement
of 3 inches). If the total calculated riser expansion or
contraction exceeds 1-1/2
inches, field installed
expansion compensation must be provided.
The initial positioning of the riser stub-out is correct when
the top of the riser pipe is 3 inches above the top of the
cabinet (applies to standard riser models only:
VBR/VMR/VBS)
3. If the installation requires the use of field or factory
provided riser extensions, install the extensions to the
unit-mounted risers prior to moving the cabinet into final
position.
4. Raise the cabinet upright and lower the risers through the
floor cut-out, aligning the risers into the swaged section of
the unit on the floor below.
Take extra care not to scrape or dent risers during
positioning. The riser tailpiece should insert
approximately 2" into the 3" long swaged section of
the unit below.
To ensure correct riser positioning, and to
compensate for variations in floor-to-floor
dimensions, DO NOT allow the riser tailpiece to
bottom out into the swaged section.
5. Center the risers in the pipe chase, and level the cabinet
using shims as necessary.
6. Plumb risers in two planes to assure proper unit operation
and condensate drainage.
7. Placing cabinets on vibration isolation pads is
recommended to reduce noise transmission into floor.
Anchor cabinets into place, using sheet metal angles.
Do not drill, or drive screws into the cabinet in the
area of the internal drain pan.
8. Center the risers’ horizontal stub-outs (complete with
factory-installed shut-off valves) in the cabinet slot
openings. Ensure that the stub-outs are perpendicular to
the side/back panel.
9. Verify all risers are vertical and that they penetrate the
swaged joint at least 1". Factory provided risers come
with a 3 inch deep swage.
Do not allow risers to
completely bottom out at 3 inches in the swage. The 3
inch swage depth is oversized to allow for adjustments if
necessary to keep riser stub-outs and valves centered in
the cabinet opening. Riser stub-out should be centered in
cabinet opening to allow for expansion and contraction.
Riser stub-outs must not contact on any sheet metal
opening, otherwise damage can occur to stub-outs,
resulting in water leaks and property damage.
Correct Position of Stub-Out in Cabinet Riser Opening:
Incorrect Position of Stub-Out in Cabinet Riser Opening:
10. Braze or solder riser joints with industry accepted solder
or brazing rod material.
Riser system must be secured to building
structure. Cabinets are not designed to support
riser system.
11. The riser system must be secured, at a minimum of
one point, to the building structure. Cabinets are not
intended to support riser system!
If the temperature
range of the system will exceed the allowed expansion
and contraction limits (1-1/2 inches maximum), riser
compensation provisions must be made by the installing
contractor.