11
STEP 4: SETTING THE UNIT
Construct a platform for the fan coil unit, as shown in
Figure 2.10. The platform can be constructed of 2x4
(minimum), 2x6, 2x8 and 2x10 lumber, as necessary to
achieve proper pitch of
1
⁄
4
" per foot for the condensate
drain line. Figure 2.11 shows the approximate normal
allowable run of condensate piping as a function of the
framing lumber used for platform construction. The
platform covering should be
1
⁄
2
" plywood minimum.
Attach vibration isolation pads (supplied inside fan coil
unit) to platform covering as shown in Fig. 2.10.
Secure the platform to the joist or floor, depending on
location selected for the fan coil unit. Make sure platform
is level.
For locations where the fan coil unit will be suspended,
suspend platform from overhead by
1
⁄
4
" threaded rods.
NOTICE: Leave room on sides for servicing.
For installations with a return air box and return air duct,
set fan coil unit on the platform with the elliptical opening
facing in the direction of the return air box. The supply air
plenum adaptor should overhang the platform.
DO NOT
let the adaptor support the weight of the unit.
Do not secure the unit to the platform, as the weight of
the unit will hold it in position.
STEP 5: CONNECTING REFRIGERANT
LINES
Connect refrigerant lines from the outdoor condensing
unit to the fan coil unit in accordance with its manu-
facturer's sizing recommendations for the length
of the piping run. Proper line sizing is critical to the
operation of the system. Always use proper brazing
procedures. A trickle flow (2PSI) of dry nitrogen to avoid
scale or blockage in the piping system is recommended
while brazing. SpacePak also recommends installing a
sight glass on the liquid line outside of the
unit as an aid for accurately charging the system.
30"
25"
4 STRIPS 4" x 30" x 1" THICK
POLYURETHANE FOAM
FOR MODEL ESP-2430G
AIR FL
OW
1 STRIP 4" x 15" x 1" THICK
POLYURETHANE FOAM
1 STRIP 4" x 9" x 1" THICK
POLYURETHANE FOAM
7 STRIPS 4" x 30" x 1" THICK
POLYURETHANE FOAM
FOR MODEL ESP-4860G
30"
44"
AIR FLO
W
30"
34"
5 STRIPS 4" x 30" x 1" THICK
POLYURETHANE FOAM
FOR MODEL ESP-3642G
AIR FL
OW
1 STRIP 4" x 14" x 1" THICK
POLYURETHANE FOAM
1 STRIP 4" x 15" x 1" THICK
POLYURETHANE FOAM
1 STRIP 4" x 16" x 1" THICK
POLYURETHANE FOAM
1 STRIP 4" x 15" x 1" THICK
POLYURETHANE FOAM
FIGURE 2.10: MOUNTING PLATFORMS SHOWN WITH VIBRATION ISOLATION STRIPS
FIGURE 2.11: CONDENSATE PIPING RUNS
LUMBER SIZE
MAXIMUM
HORIZONTAL
2 X 4
8'
2 X 6
16'
2 X 8
24'
2 X 10
32'
Summary of Contents for ESP-G SYSTEM
Page 10: ...10 FIGURE 2 9 FIGURE 2 8...
Page 13: ...FIGURE 2 13 WIRING DIAGRAM 13...