Installation Guide

5724452-UIM-A-0619
Johnson Controls Ducted Systems 11
TABLE 9: Electrical Data for Multi-source Power Supply: 208/230-1-60
Air Handler
Models
Heater
1,2
Models
Heater
Amps
@240 V
Min. Circuit Ampacity
MOP.
3
208 V 230 V 208 V 230 V
Circuit Circuit
1st
3
2nd
3rd
1st
3
2nd
3rd
1st
3
2nd
3rd
1st
3
2nd
3rd
ME08B 6HK16501306 52 22.0 37.6 - 24.0 41.5 - 25 40 - 25 45 -
ME12B
6HK16501306 52 23.5 37.6 - 25.5 41.5 - 25 40 - 30 45 -
6HK16501506 60 26.4 43.3 - 28.7 47.9 - 30 45 - 30 50 -
6HK16501806 72 43.8 39.0 - 47.9 43.1 - 45 40 - 50 45 -
6HK16502006 80 48.1 43.3 - 52.7 47.9 - 50 45 - 60 50 -
ME12C
6HK16501306 52 23.5 37.6 - 25.5 41.5 - 25 40 - 30 45 -
6HK16501506 60 26.4 43.3 - 28.7 47.9 - 30 45 - 30 50 -
6HK16501806 72 43.8 39.0 - 47.9 43.1 - 45 40 - 50 45 -
6HK16502006 80 48.1 43.3 - 52.7 47.9 - 50 45 - 60 50 -
ME14D
6HK16501306 52 23.5 37.6 - 25.5 41.5 - 25 40 - 30 45 -
6HK16501506 60 26.4 43.3 - 28.7 47.9 - 30 45 - 30 50 -
6HK16501806 72 43.8 39.0 - 47.9 43.1 - 45 40 - 50 45 -
ME16C
6HK16501306 52 25.5 37.6 - 27.5 41.5 - 30 40 - 30 45 -
6HK16501506 60 28.4 43.3 - 30.7 47.9 - 30 45 - 35 50 -
6HK16501806 72 45.8 39.0 - 49.9 43.1 - 50 40 - 50 45 -
6HK16502006 80 50.1 43.3 - 54.7 47.9 - 60 45 - 60 50 -
ME20D
6HK16501306 52 25.5 37.6 - 27.5 41.5 - 30 40 - 30 45 -
6HK16501506 60 28.4 43.3 - 30.7 47.9 - 30 45 - 35 50 -
6HK16501806 72 45.8 39.0 - 49.9 43.1 - 50 40 - 50 45 -
6HK16502006 80 50.1 43.3 - 54.7 47.9 - 60 45 - 60 50 -
6HK16502506 100 50.1 43.3 21.7 54.7 47.9 24.0 60 45 25 60 50 25
1. (0,1) - maybe 0 (no service disconnect) or 1 (with service disconnect).
2. (1,2) maybe 1 (with service disconnect, no breaker jumper bar) or 2 (with service disconnect and breaker jumper bar).
3. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse. Refer to the latest edition of the National Electrical Code or in Canada the
Canadian Electrical Code and local codes to determine correct wire sizing.
TABLE 10: Electrical Data for Single Source Power Supply: 208/230-3-60
Air Handler
Models
Heater
Models
1
Heater
Amps
@240 V
Field Wiring
Min. Circuit Ampacity
MOP.
2
208 V 230 V 208 V 230 V
ME08B 6HK36501025 23.1 28.3 30.9 30 35
ME12B
6HK36501025 23.1 29.8 32.4 30 35
6HK36501525 34.6 42.2 46.2 45 50
6HK36501825 41.6 49.8 54.6 50 60
6HK46502025
3
46.2 54.8 60.1 60 70
ME12C
6HK36501025 23.1 29.8 32.4 30 35
6HK36501525 34.6 42.2 46.2 45 50
6HK36501825 41.6 49.8 54.6 50 60
6HK46502025
3
46.2 54.8 60.1 60 70
ME14D
6HK36501025 23.1 29.8 32.4 30 35
6HK36501525 34.6 42.2 46.2 45 50
6HK36501825 41.6 49.8 54.6 50 60
ME16C
6HK36501025 23.1 31.8 34.4 35 35
6HK36501525 34.6 44.2 48.2 45 50
6HK36501825 41.6 51.8 56.6 60 60
6HK46502025
3
46.2 56.8 62.1 60 70
ME20D
6HK36501025 23.1 31.8 34.4 35 35
6HK36501525 34.6 44.3 48.2 45 50
6HK36501825 41.6 51.9 56.7 60 60
6HK46502025
3
46.2 56.8 62.0 60 70
6HK46502525
3
57.7 69.3 75.9 70 80
1. 6HK3 = 3-phase with terminal block connections only. 6HK4 = 3-phase with service disconnect.
2. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse. The 1st circuit includes blower motor amps. Refer to the lat-
est edition of the National Electrical Code or in Canada the Canadian Electrical Code and local codes to determine correct wire sizing.
3. The 20 kW and 25 kW heater models (6HK46502025 and 6HK46502525) come with service disconnects standard. Single source power MCA and MOP require-
ments are given here only for reference if used with field installed single point power modification.