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6052931-UAI-A-0121

Johnson Controls Ducted Systems

3

6.

Install the electric heat kit as follows:
a.

Position and insert the electric heat kit into the opening

in the air handler unit.

b.

Align the mount holes and fasten the electric heat kit to

the air handler unit with four duct cover screws.

7.

Remove and discard the air handler power connection wir-

ing that is for use without electric heat (the connector con-

taining  only  the  red  and  black  wires)  from  the  6-pin

connector. 

8.

Connect the 6-pin socket connector of the electric heat kit

to the control/power 6-pin connector in the air handler. The

end  terminals  are  D-shaped  to  ensure  polarization  of  the

connector.

9.

Mark an X in the appropriate box on the indoor unit rating

plate for the particular electric heat kit installed.

10. Refer to the unit rating plate for the minimum blower speed

required for the electric heat kit model installed, and set the

blower speed accordingly.

 CAUTION

To prevent damage, carefully pass the accessory heating ele-
ment through the rectangular opening in the discharge duct.
Element mounting plate must be secured with four screws.

!

 WARNING

Verify edges of foil faced insulation are not in contact with any
exposed electrical connections.

NOTICE

All wiring must comply with local and National Electrical Code
requirements. Read and heed all unit caution labels.

NOTICE

An optional service disconnect cover can be applied to seal/
protect the Service Disconnects (S1-02435672000).

!

Figure 2: 

Typical electric heat kit installations - air handler

UPFLOW

HORIZONTAL RIGHT

HORIZONTAL LEFT

HEAT

HEA

T

HEA

T

DOWNFLOW

HEAT

A0330-001

Summary of Contents for 6HK Series

Page 1: ... local building codes or in the absence of local codes with National Electrical Code ANSI NFPA 70 1996 or current edi tion The information contained in this manual is intended for use by a qualified service technician familiar with safety proce dures and equipped with the proper tools and test instru ments Shut OFF electric power at unit disconnect and or service panel before beginning the followi...

Page 2: ... and wiring compartment Table 1 Models covered Electric heat kit kW at 240V 1 phase electric heat kit1 2 all except PHE 1 phase electric heat kit1 2 3 PHE 3 phase 208 V 230 V electric heat kits PHE PCE AHR AHE AHV RFCX E1 RFCX P1 3 Phase 208 V 230 V electric heat kits AP AE AVC AVV RFCX E2 RFCX P2 MP ME MVC 3 phase 460 V electric heat kits4 2 4 6HK 0 1 6500206 6HK 0 1 6500206 4 8 6HK 0 1 6500506 6...

Page 3: ...x on the indoor unit rating plate for the particular electric heat kit installed 10 Refer to the unit rating plate for the minimum blower speed required for the electric heat kit model installed and set the blower speed accordingly CAUTION To prevent damage carefully pass the accessory heating ele ment through the rectangular opening in the discharge duct Element mounting plate must be secured wit...

Page 4: ...h the four screws When installing the electric heat kit in AP AE AVC AVV MP ME MVC RFCX E2 and RFCX P2 models the electric heat kit service disconnect bracket remains in position A Figure 3 Air handler electric heat kit installation AHR AHE AHV RFCX E1 and RFCX P1 2 5 66 3 1 8 7 29 5 5HPRYH IRU KHDWHU NLW LQVWDOODWLRQ 7 5 7 6OLGH KHDWHU LQWR DLU KDQGOHU DQG DWWDFK ZLWK IRXU GXFW FRYHU VFUHZV 6833 ...

Page 5: ...t move the electric heat kit service discon nect bracket to another position Figure 4 Air handler electric heat kit installation AP AE AVC AVV MP ME MVC RFCX E2 and RFCX P2 8 7 29 5 5HPRYH IRU KHDWHU NLW LQVWDOODWLRQ 2 5 66 3 1 6 59 6 211 7 12 2876 5HPRYH LI KHDWHU NLW KDV VHUYLFH GLVFRQQHFWV 7 5 7 6OLGH KHDWHU LQWR DLU KDQGOHU DQG DWWDFK ZLWK IRXU GXFW FRYHU VFUHZV 6833 5 1 RQQHFW WR OHIW VLGH 32...

Page 6: ... on the outdoor unit rating plate for the particular electric heat kit installed 7 Refer to the unit rating plate for the minimum blower speed required for the electric heat kit model installed and set the blower speed accordingly CAUTION To prevent damage carefully pass the accessory heating ele ment through the open rectangular mounting position Ele ment mounting plate must be secured with four ...

Page 7: ... circuits a single point power accessory kit can be ordered separately A ground lug is pro vided on the kits Refer to the unit installation instructions for electrical specifications See Figure 6 and Figure 7 Figure 6 Electric heat kit connection FACTORY WIRING Attached to this side no need for removal TERMINAL BLOCK OR SERVICE DISCONNECTS May have 1 2 or 3 service disconnects FIELD SUPPLIED WIRIN...

Page 8: ...f the unit See Figure 5 Remove the required knockout and pierce the foil faced insulation to allow the wiring to pass through Use as small a hole as possible to minimize air leakage Install a 7 8 in plastic bushing in the selected hole and keep low voltage wiring as short as possible inside the control box To further minimize air leakage seal the wiring entry point at the outside of the unit Conne...

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