Manufacturer reserves the right to change specifications or designs without notice.
10.2019
Air Handler Unit Installation Instruction
12/20
System Types List
Type
Descriptions
Application
Required Terminals
0
Cool only
ESI (AC only) + Air Handler
C, RC, Y1, G
3
Cool only
ESI + Air Handler
C, RC, Y1, O, G
6
1H/1C
ESI + Air Handler
C, RH, Y1, O, G, *
W2
8
1H/1C
ESI + Air Handler
See details on EST Install and
User Guide
9
1H/2C (G/G2)
ESI +
E series
Air Handler
10
(
Default
)
2H/1C
ESI + Air Handler
ESI + Gas Furnace
11
2H/2C (G/G2)
ESI +
E series
Air Handler
12
Cool only (G/G2)
AC only +
E series
Air Handler
13
Cool only (G/G2) + W2
REMARKS:
No output from EST01 at O terminal if select Type 8 ~ 13.
Type 6 can be used as a BACKUP for heat pump (Normal O signal output) application without two-stage fan control in
cooling.
ESI- Ecoer Smart Inverter condensing unit * means optional connection
4.3
Grounding
WARNING
The unit must be permanently grounded.
Failure to do so can result in electrical shock causing personal injury or death.
•
Grounding may be accomplished by grounding metal conduit when installed in accordance with electrical
codes to the unit cabinet.
•
Grounding may also be accomplished by attaching ground wire(s) to ground lug(s) provided in the unit
wiring compartment.
•
Use of multiple supply circuits require grounding of each circuit to lug(s) provided in the unit.
4.4
Electrical Data
Model
Number
Voltage-Phase-Hz
Power Supply
Wiring Gauge
Motor HP
Motor
Steps
Minimum Circuit
AMPS.
Fuse (A)
24
208/230-1Ph-60Hz
14
1/3
5
3.0
15
36
1/2
5.2
48
3/4
7.5
60
3/4
7.5
