Before starting the installation, select and check the suitability
of the location for both the indoor and outdoor unit. Observe all
limitations and clearance requirements, see Figure 2.
The outdoor unit must have sufficient clearance for air entrance
to the condenser coil, for air discharge and for service access.
If the unit is to be installed on a hot sun exposed roof or a
black-topped ground area, the unit should be raised sufficiently
above the roof or ground to avoid taking the accumulated layer
of hot air into the outdoor unit.
Provide an adequate structural support.
The unit may be installed at ground level on a solid base that
will not shift or settle, causing strain on the refrigerant lines and
possible leaks. Maintain the clearances shown Figure 2 and
install the unit in a level position. Isolate the base from the
building structure to avoid noise or vibration transmission.
When installing units on a roof, the structure must be capable
of supporting the total weight of the unit, including a pad, lintels,
rails, etc., which should be used to minimize the transmission
of sound or vibration into the conditioned space.
Isolate the unit from rain gutters to avoid any possible wash out
of the foundation.
Normal operating sound levels may be objectionable if the unit
is placed directly under windows of certain rooms (bedrooms,
study, etc.).
Condensate will drain from beneath the coil of the outdoor unit
during the defrost cycle. Normally this condensate may be
allowed to drain directly onto the ground. A gravel bed may be
used to prevent mud splashing.
WARNING: The outdoor unit should not be installed in an area
where mud or ice could cause personal injury.
Remember that condensate will drip from the unit
coils during heat and defrost cycles and that this
condensate will freeze when the temperature of the
outdoor air is below 32
°
F.
Elevate the unit sufficiently to prevent any blockage of the air
entrances by snow in areas where there will be snow accumu-
lation. Check the local weather bureau for the expected snow
accumulation in your area.
INSTALLATION PROCEDURES
The following sequence of installation steps is suggested.
1. Inspect unit and set in place.
2. Make electrical power connections.
3. Check orifice size and replace with correct size if neces-
sary.
UNIT MODEL E1FB / E9FB...
012
018
024
030
UNIT SUPPLY VOLTAGE
208/230-1-60
NORMAL VOLTAGE RANGE
1
187 to 252
MIN. CIRCUIT AMPACITY
12.0
12.0
15.2
19.2
MAX. OVERCURRENT DEVICE AMPS
2
15
15
20
25
COMPRESSOR AMPS
RATED LOAD
7.4
7.4
9.7
12.3
LOCKED ROTOR
48
48
60
73
CRANKCASE HEATER
YES
YES
YES
YES
FAN MOTOR AMPS
RATED LOAD
0.8
0.8
0.8
0.8
LOCKED ROTOR
1.9
1.9
1.9
1.9
MIN. FIELD WIRE SIZE AWG.
COPPER CONDUCTORS
60°C
14
14
12
12
MAX. WIRE LENGTH ( FEET)
BASED ON 3% VOLTAGE DROP
208V
77
77
99
81
230V
86
86
110
90
FAN DIAMETER INCHES
18
18
18
18
FAN MOTOR
RATED HP
1/8
1/8
1/8
1/4
NOMINAL RPM
1075
1075
1075
1075
NOMINAL CFM
2000
2000
1900
2200
COIL
FACE AREA SQ. FT.
15.1
15.1
14.1
14.1
ROWS DEEP
1
1
2
2
FINS/INCH
16
16
13
13
LIQUID LINE CONNECTION
5/16
5/16
5/16
5/16
VAPOR LINE CONNECTION
5/8
5/8
5/8
3/4
OPERATING WEIGHT LBS.
148
148
170
172
(1) Utilization range “A” in accordance with ARI standard 110.
(2) Dual element fuses or HACR circuit breaker.
TABLE 2 - PHYSICAL AND ELECTRICAL DATA
515.26-N1Y
2
Central Environmental Systems
