York E2FB120 User Manual
Page 5
Some installations may require a locking cover to protect the
thermostat from tampering and/or damage.
Both the manual and auto changeover thermostats have non-
adjustable, voltage-type anticipators for both cooling and heat-
ing.
WIRE SIZING
Refer to the following chart to size the control wiring properly. If
the wiring is undersized,voltage drop could become excessive
and result in malfunctioning of the unit controls.
REFRIGERANT PIPING
GENERAL GUIDELINES
Many service problems can be avoided by taking adequate
precautions to provide an internally clean and dry system and
by using procedures and materials that conform with estab-
lished standards.
Unitary Products Group
5
035-15410-002-B-0404
FIG. 3 - TYPICAL FIELD WIRING
Model
EFB
Compressor
Outdoor Fan Motor
Min.
Circuit
Amps
Max.
Fuse
Size
Power
Supply
RLA
LRA
Power
Factor
Power
Supply
Qty.
FLA
(Each)
E3FB
090A
25 200/230-3-60
25.6
180.0
0.94 @ 208V
208/230-1-60
1
3.03
35.1
60
0.84 @ 230V
46 460-3-60
13.5
95.0
0.86
460-1-60
1
1.6
18.4
30
50 308/415-3-50
13.5
85.0
0.86 @ 380V
380/415-1-50
1
1.6
18.4
30
0.79 @ 415V
E2FB
120A
25 208/230-3-60
42.0
239.0
0.91 @ 208V
208/230-1-60
2
2.7
51.8
70
0.82 @ 230V
46 460-3-60
19.2
125.0 0.82
460-1-60
2
1.6
24.7
35
50 380/415-3-50
19.6
118.0
0.87 @ 380V
380/415-/-50
2
1.6
25.2
35
0.80 @ 415V
1
Based on three, 60°C insulated copper conductors in steel conduit.
2
Based on a 3% voltage drop.
TABLE 3
- ELECTRICAL DATA
RECOMMENDED
WIRE SIZE
MAXIMUM TOTAL
CIRCUIT LENGTH - FT.*
#19 Solid
#18 Solid
130
170
#18 Stranded
#16 Stranded
180
270
#14 Stranded
#12 Stranded
455
730
*
To determine the total circuit length, add the following distances:
1 - Outdoor Unit to Indoor Unit................................
____________
2 - Indoor Unit to Thermostat...................................
____________
3 - Thermostat to Indoor Unit...................................
____________
2 - Indoor Unit to Outdoor Unit................................. ____________
Total Circuit Length............ ____________
Note: Refer to document 036-13335-003
for correct thermostat.