| 19
Installation Instructions
Bosch 18 SEER2 Series Inverter Ducted Packaged Heat Pump - BTC 761703104 A (11.2022)
WARNING: ELECTRICAL SHOCK
Label all wiring prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
Size
(Tons)
Voltage
- Phase -
Frequency
Compressors
(each)
OD Fan
Motors
(each)
Supply
Blower
Motor
Unit Circuit
RLA LRA FLA FLA
MCA¹
(Amps)
Max Fuse²/
Breaker³ Size
(Amps)
60
(5.0)
208/230-
1-60
27A 52A 2.1A 6.0A 41.9 60
Table 8 Electrical Data Without Electric Heat
Heater Circuit
Model kW Stages Amps
MCA¹
(Amps)
Max Fuse²/
Breaker³
Size (Amps)*
EHK-05J 3.8/5 1 18.1/20.8 23/26 25/30
EHK-08J 5.6/7.5 1 27.1/31.3 34/40 35/40
EHK-10J 7.5/1.0 1 36.1/41.7 46/53 50/60
EHK-15J 11.3/15 2 54.2/62.5 68/79 70/80
EHK-20J 15/20 2 72.2/83.3 91/105 100/110
Table 9 Electrical Data With Electric Heat
1. Minimum Circuit Ampacity.
2. Maximum Over Current Protection per Standard UL 1995.
3. Fuse or HACR circuit breaker size installed at factory or fi eld installed.
* Max Fuse/Breaker Sizes listed in Table 9 are for electric heater ONLY. DOES NOT
include breaker size for the unit (refer to Table 8).
WARNING: ELECTRICAL SHOCK / FIRE HAZARD
Any power supply and circuits must be wired and
protected in accordance with local electrical codes.
11 Start Up
11.1 System Start Up
1. Ensure Sections 4, 5, 6, 7, and 8 have been completed.
2. Set System Thermostat to OFF.
Figure 18
3. Turn on disconnect to apply power to the indoor and outdoor units.
Figure 19
ON
OFF
4. Wait one (1) hour before starting the unit if compressor crankcase heater is
used and the outdoor ambient temperature is below 70 °F.
Figure 20
60 MIN.
5. Set system thermostat to ON.
Figure 21
To Next Page
Loading...
Need help?
General