Si (Metric) Conversion Factors; Unit Location - Modine Manufacturing SSD Installation And Service Manual

UNIT LOCATION

Table 3.1

SI (Metric) Conversion Factors

To Convert Multiply By To Obtain
"W.C. 0.249 kPa
ºF (ºF-32) x 5/9 ºC
BTU 1.06 kJ
3
BTU/ft 37.3 kJ/m³
BTU/hr 0.000293 kW
3
CFH (ft /hr) 0.000472 m³/min
3
CFH (ft /hr) 0.00000787 m³/s
3
CFM (ft /min) 0.0283 m³/min
3
CFM (ft /min) 0.000472 m³/s
UNIT LOCATION
DANGER
Appliances must not be installed where they may be
exposed to potentially explosive or flammable
atmosphere.
Unpacking
Remove the banding straps and lift the cardboard lid.
Remove the fascia, packed in bubble wrap, and polystyrene
packing pieces to expose the unit.
When removing the unit chassis from the box, the four
corner brackets should be utilized for lifting. In order to
protect the fascia from dirt and damage, it should be
returned to the box until it is ready to be installed.
Blank Off Pieces
When branch ducting is to be used, polystyrene pieces for
blanking off fascia openings are included with the fascia
packing. Up to two opposing sides may be blanked off. See
Installation – Duct Collars.
Positioning
Before any installation work commences, the condensing
unit location (where applicable), pipe work sizes and routes
should be designed in accordance with good refrigeration
practice.
The unit installation position should be selected with the
following points in mind:
1. The appliance must be installed on a structure that is
suitable to support the total weight of the appliance,
piping, refrigerant and condensate.
2. Piping, electrical panel and condensate pump access
panel should be readily accessible for maintenance
purposes. A clearance of 2 feet is recommended
around the electrical panel and condensate pump
access panel.
3. The unit should not be positioned less than 5 ft. from a
wall or similar obstruction, or in a position where the
discharge air could blow directly on to the thermostat.
4. The unit should not be positioned directly above any
obstructions.
5. The unit must be installed square and level.
6. The condensate drain should have sufficient downward
slope (1" in 100") in any horizontal run between unit and
drain. Maximum condensate pump lift is 30".
To Convert Multiply To Obtain
By
feet 0.305 m
Gal/hr 0.00379 m³/hr
Gal/hr 3.79 l/hr
gallons 3.79 l
Horsepower 746 W
inches 25.4 mm
pound 0.454 kg
psig 6.89 kPa
psig 27.7 "W.C.
7. There should be sufficient room above the false ceiling
for installing the unit. Minimum distance as shown in
Figure 3.1 and Table 3.2.
8. In case of high humidity, clogged or damaged
condensate piping, incorrect installation or faulty
condensate pump, water may drip from the unit. Do not
install the appliance where dripping water can cause
damage.
Figure 3.1
Minimum Distance to Ceiling
30"
max
Table 3.2
Minimum Distance to Ceiling
Models
SCW 08 & 12
SCW 18 & 20
SCW 33, 36 & SSD/SSH 18 - 42
Ceiling Opening Sizes
An opening in the false ceiling will then have to be cut to the
size shown in Table 3.3.
Table 3.3
Ceiling Opening Sizes
Models
SCW 0/8 & 12
SSD/SSH/SCW 18, 20 & 24
SSD/SSH/SCW 30, 33, 36 & 42
8-504.6
A
A
12¾"
11½"
13½"
L x W
23" x 23"
34" x 34"
46" x 34"
3