JOHNSON CONTROLS
37
SECTION 2 – INSTALLATION
FORM 100.50-NOM6
ISSUE DATE: 8/07/2017
2
TABLE 15 -
ELECTRIC HEAT
KW
NOMINAL VOLTAGE
208/3/60
AMPS
230/3/60
AMPS
460/3/60
AMPS
575/3/60
AMPS
40
96
96
48
40
80
193
193
96
80
108
260
260
130
109
150
—
—
181
151
TABLE 16 -
AIRFLOW AND ENTERING AIR/AMBIENT LIMITATIONS
LIMITATIONS
MODEL SIZE
50
51
60
61
Minimum Airflow at Standard Design Conditions.
CFM* (min to max)
10000 -
22500
10000 -
22500
12500 -
24000
12500 -
24000
Entering Wet Bulb Temp F° (min/max)
57/75
57/75
57/75
57/75
Entering Dry Bulb Temp F° (min/max)
68/90
68/90
68/90
68/90
Ambient Temp F° without Low Amb option
50/120
50/120
50/120
50/120
Ambient Temp F° with Low Amb option
0/120
0/120
0/120
0/120
* Cooling Only Units
FILTERS
Two-inch “throwaway” filters are standard and factory
installed in a filter rack located prior to the evaporator
coil. Any optional pre-filters ordered with the unit will
be shipped inside the unit, but must be field installed.
The unit can also be ordered with an extended cabinet
and 95% efficient post-filters. These post-filters are in-
stalled at the factory.
Pre-filters must always be installed ahead of the evapo-
rator coil. Post and pre-filters must be kept clean and
replaced with the same size and type as shipped with
the unit. Dirty filters will reduce the capacity of the unit
and may result in frosted coils and safety shutdowns.
Required filter sizes and quantities are shown in
. The unit should never be operated for
any length of time without the proper filters installed
in the unit.
BASE
RAILS
BASE
RAILS
BASE
RAILS
DRAIN
NIPPLE
TRAP
NO.1 - FAN OFF
NO. 2 - TRAP CONDITION WHEN FAN STARTS
NO. 3 - FAN RUNNING AND CONDENSATE
COOLING COIL
DRAIN PAN
LD13269
FIGURE 11 -
DRAIN TRAP SHOWING WATER
LOCATION DURING DRAW THROUGH
OPERATION STAGES