Enertech VS Series - Section 7: Auxiliary Heater; Auxiliary Heater Overview and Data

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Enertech Global IOM, VS/VT Models, Rev A
Section 7: Auxiliary Heater
Auxiliary Heater Nomenclature Decoder
Overview
THE AXCH electric heater kits are designed and
approved for use with specic sizes of Enertech’s
VS/VT unit models. Table 1 lists all of the possible
combinations. The information contained in the
manual shipped with every separately purchased
heater is intended for use by a qualied service
technician familiar with safety procedures and
equipped with the proper tools and test instruments.
Components
Each AXCH electric heat kit should contain the
following items:
• (QTY: 1) 20D219-01NN Installation, Operation &
Maintenance manual
• (QTY: 1) Electric Heat Module Assembly
• (QTY: 2) Mounting Brackets
• (QTY: 48”) Gasket Tape
• (QTY: 8) #8-18 x .375 Mounting Screws
240 208
240 208 240 208 240 208 240 208 240 208 240 208 240 208
AXCH051SA Single 5 3.75 2.5 1.875
20.8 18.0
26.0 22.5 30 25 2 10 12 144 87
5 3.75
5 3.75
5 3.75
10 7.50
10 7.50
10 7.50
240 208
240 208 240 208 240 208 240 208 240 208 240 208 240 208
L1/L2 5 3.75 20.8 18.0 26.0 22.5 30 25 2 10 12 144 87
L3/L4 10 7.50 41.7 36.1 52.1 45.1 60 50 2 6 8 176 111
L1/L2 10 7.50 41.7 36.1 52.1 45.1 60 50 2 6 8 176 111
L3/L4 10 7.50 41.7 36.1 52.1 45.1 60 50 2 6 8 176 111
MOCP Maximum
Overcurrent
Protective
Device (AMPS)
NEC 240.4(B)
Technical Data 60Hz, Single Phase, w/ Circuit Breaker (*Single Point Connection)
MCA- Minimum
Circuit Ampacity
Heat kW
Supply Circuit
Number
Heater Model
Heater kW Per
Circuit
67.6
80
60
AXCH151SA*
AXCH151MA*
15
AXCH101SA
AXCH101MA
Single
11.25
62.5
54.1
78.1
Single
41.7
36.1
52.1
45.1
8
8
10
50
70
2
6
8
2
4
4
186
186.1
10
7.5
176
110.9
10
Recommended
Branch Circuit Conductor
75°C Copper
NEC 310.15(B)(16), Ch. 9 Table 9
Ground
Wire
NEC 250.122
# of
Wires
Min Wire
Size (AWG)
Max
Length (ft)
Min Wire
Size (AWG)
FLA
Total
AMPS
AXCH201MA*
Single
20
15
83.3
72.1
104.2
90.1
110
100
2
2
3
216
173.1
6
8
Technical Data (US Customers ONLY!!) Single Phase w/ Circuit Breaker- Single Point Connection Removed
Heater Model
Supply Circuit
Number
Heat kW
Heater kW Per
Circuit
FLA
Total
AMPS
MCA- Minimum
Circuit Ampacity
MOCP Maximum
Overcurrent
Protective
Device (AMPS)
NEC 240.4(B)
Recommended
Branch Circuit Conductor
75°C Copper
NEC 310.15(B)(16), Ch. 9 Table 9
Ground
Wire
NEC 250.122
# of
Wires
Min Wire
Size (AWG)
Max
Length (ft)
Min Wire
Size (AWG)
AXCH151SA
AXCH151MA
15
11.25
10
10
AXCH201MA
20
15
10
10
6/14/2016 \\enertechgvfile\Engineering$\APQP\Backer Heater\Engineering Data\BACKER EHP ELECTRICAL DATA.xlsm 11:37 AM
Auxiliary Heater Electrical Data
HEATER INSTALLATION
ATTACH 90° CONDUIT FITTING
TO HOLE WITH LABELED WITH
'AUX HEAT CONTROL WIRING'
MOUNT SUPPLY DUCT
FLANGES TO TOP OF
HEATER
Typical heater Installation
Heater and Unit Compatibility
Heater Model Unit Model Capacity Heater Model Unit Model Capacity
AXCH051SA VS/VT 024-036 AXCH101MA* VS/VT 042-072
AXCH101SA VS/VT 024-036 AXCH151MA* VS/VT 042-072
AXCH151SA* VS/VT 036 AXCH201MA* VS/VT 060-072
* Single Point Connection