40MUAA: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
16
Step 9 - Mount Electric Heater (Optional)
Heater Kits
This unit is not equipped with an electric heater package. A factory-approved,
field-installed, ETL listed heater package is available from your equipment
supplier. Factory-authorized, field-installed electric heater packages are
available in sizes 5kW through 25kW. Electric heaters that are not factory
approved may cause damage which would not be covered under the
equipment warranty. Review the product data literature for all available
accessory kits.
Table 6 — Accessories
NOTE: Installation must be performed by an authorized dealer or
specialist. Use recommended PPE when installing the unit.
Specification of electric auxiliary heat modules: 5kW, 8kW, 10kW, 15kW,
20kW, 25kW.
Table 7 — Auxiliary Heater Compatibility
Table 8 — Heater Kits
NOTE: Heaters must be ordered via Replacement Components.
Table 9 — Power Requirements for Heaters
If the unit needs to be equipped with the electric auxiliary heat module, check
the electric auxiliary heat module specification that is compatible with the
unit to avoid unnecessary consequences caused by improper matching and
refer to Product Data Manual.
INSTALLATION REQUIREMENTS
NOTE: Installation of Auxiliary Electric Heat Module should be
completed before installing the discharge ductwork to insure proper
alignment of the inside support brackets.
Before installation, check the list of electric auxiliary heat modules and
physical objects. After transportation, check whether the electric heat
module is damaged. If any damage is detected, contact the after-sales
personnel immediately.
NOTE: A separate power source is required for an Auxiliary Electric
Heater. These units do NOT support a SINGLE POINT electrical
connection when utilizing auxiliary heat.
Name Shape Quantity
Owner’s and
Installation Manual
1
Seal 1
Screw 7
Resilient Cap 1
Electric Auxiliary
Heating Wiring
Diagram
1
Circuit Breaker
Label
1
MODEL (Btu/h) 5kW 8kW 10kW 15kW 20kW 25kW
18K Y Y Y - - -
24K YYYY - -
30K YYYY - -
36K YYYYY -
48K - YYYY -
60K - - YYYY
Heater Kit Size (kW) Model Number
18 40MUAAQ18XA3
24 40MUAAQ24XA3
30 40MUAAQ30XA3
36 40MUAAQ36XA3
48 40MUAAQ48XA3
60 40MUAAQ60XA3
Heater
Kit Size
(KW)
Model
Number
MCA
Circuit
1 208V/
230V
MCA
Circuit
2 208V/
230V
MCA
Circuit
3 208V/
230V
MOPD
Circuit
1 208V/
230V
MOPD
Circuit
2 208V/
230V
5
EHKMB0
5KN
23.0/
27.0
25.0/
30.0
8
EHKMB0
8KN
37.0/
42.0
40.0/
45.0
10
EHKMB1
0KN
46.0/
53.0
50.0/
60.0
15
EHKMB1
5KN
23.0/
27.0
46.0/
53.0
25.0/
30.0
50.0/
60.0
20
EHKMB2
0KN
46.0/
53.0
46.0/
53.0
50.0/
60.0
50.0/
60.0
25
EHKMB2
5KN
23.0/
27.0
46.0/
53.0
46.0/
53.0
25.0/
30.0
50.0/
60.0
This electric auxiliary heat module is internally mounted in the air
handler. DO NOT mount in the ductwork.
CAUTION
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