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AHKD SERIES

ELECTRIC RESISTANCE HEAT KITS
INSTALLATION INSTRUCTIONS

I

NTRODUCTION

Product Description
The AHKD series of electric heat kits is an accessory designed for
installation with the Daikin DAR0904 or DAR1204 Airhandler 

ONLY

.

INSTALLATIONS WITH OTHER AIRHANDLERS IS NOT PERMITTED

.

For installation guidelines of the DAR0904 or DAR1204, refer to
the instructions which accompany the air handler, IOD-4010 (In-
stallation & Operating Instructions).
The AHKD provides supplemental electric heat for the DAR0904/
1204.  The assembly is to be installed directly to the outlet of the
DAR0904/1204 and is not to be used as an independent duct
heater.
The AHKD20 and AHKD30 heat kits have two stages.  A  two stage
room thermostat determines the staging by room temperature.
The heat kit’s control panel is “self contained” and is equipped
with all of the safety circuit/limits required per UL1995.  The heat
kit employs a terminal block for installation of the high voltage
wires used by both the heat kit and the airhandler (single point
wiring).

C

HECKING

 P

RODUCT

 R

ECEIVED

Upon receiving the unit, inspect it for damage from shipment.
Claims for damage, either shipping or concealed, should be filed
immediately with the shipping company. Do not install this acces-
sory if it is determined that the integrity or safety has been com-
promised by freight damage.

Check the unit model number, specifications, and electrical char-
acteristics to determine if they are correct. In the event an incor-
rect unit is shipped, it must be returned to the supplier and must
NOT be installed. The manufacturer assumes no responsibility for
installation of incorrectly shipped units.

R

EPLACEMENT

 P

ARTS

O

RDERING

 P

ARTS

When reporting shortages or damages, or ordering repair parts,
give the complete unit model and serial numbers as stamped on
the product.
Replacement parts for this product are available through your con-
tractor or local distributor. For the location of your nearest dis-
tributor, consult the white business pages, the yellow page sec-
tion of the local telephone book or contact:

CONSUMER AFFAIRS

DAIKIN NORTH AMERICA LLC

7401 SECURITY WAY

HOUSTON, TEXAS 77040

855-770-5678

I

MPORTANT

 S

AFETY

 I

NSTRUCTIONS

R

ECOGNIZE

 S

AFETY

 S

YMBOLS

, W

ORDS

AND

 L

ABELS

The following symbols and labels are used throughout this manual
to indicate immediate or potential hazards. It is the owner’s re-
sponsibility to read and comply with all safety information and
instructions accompanying these symbols.  Failure to heed safety
information increases the risk of property damage, product dam-
age, personal injury or death.

HIGH VOLTAGE!

D

ISCONNECT

 ALL 

POWER

 

BEFORE

 

SERVICING

M

ULTIPLE

 

POWER

 

SOURCES

 

MAY

 

BE

 

PRESENT

. F

AILURE

 

TO

 

DO

 

SO

 

MAY

 

CAUSE

 

PROPERTY

 

DAMAGE

PERSONAL

 

INJURY

 

OR

 

DEATH

.

WARNING

© 2013
5151 San Felipe, Suite 500, Houston, TX 77056
www.daikincomfort.com
P/N: IOD-7031

Date:  December 2013

Summary of Contents for AHKD 20

Page 1: ...ised by freight damage Check the unit model number specifications and electrical char acteristics to determine if they are correct In the event an incor rect unit is shipped it must be returned to the supplier and must NOT be installed The manufacturer assumes no responsibility for installation of incorrectly shipped units REPLACEMENT PARTS ORDERING PARTS When reporting shortages or damages or ord...

Page 2: ...g local codes regulations is the responsibility of the in staller The manufacturer assumes no responsibility for equip ment installed in violation of any codes or regulations PRE INSTALLATION INSTRUCTIONS Carefully read all instructions for the installation prior to install ing product Make sure each step or procedure is understood and any special considerations are taken into account before start...

Page 3: ...HE BUILDING ELECTRICAL SERVICE PANEL OTHER METHODS OF GROUNDING ARE PERMITTED IF PERFORMED IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE NEC AMERICAN NATIONAL STANDARDS INSTITUTE ANSI NATIONAL FIRE PROTECTION ASSOCIATION NFPA 70 AND LOCAL STATE CODES IN CANADA ELECTRICAL GROUNDING IS TO BE IN ACCORDANCE WITH THE CANADIAN ELECTRIC CODE CSA C22 1 UNINTERRUPTED UNBROKEN WARNING INSPECTION OF THE BUIL...

Page 4: ... Use Table 8 to de termine the voltage drop per foot of various conductors Wire Size AWG 10 15 20 25 30 35 40 45 14 75 50 37 NR NR NR NR NR 12 118 79 59 47 NR NR NR NR 10 188 125 95 75 63 54 NR NR 8 301 201 150 120 100 86 75 68 6 471 314 235 188 157 134 118 110 Based on NEC 1996 Max Allowable Length in Feet to Limit Voltage Drop to 2 Min Circuit Ampacity MCA Table 8 MAXIMUM OVERCORRECT PROTECTION ...

Page 5: ... the kW The supply voltage is to be installed on the terminal block located in the heater kit control box The heater kit is factory equipped with the supply and low volt age wires for the air handler The low voltage connection from the heater kit is provided through a multi pin plug which con nects to a mating plug in the air handler The high voltage con nections are to be made at the air handler ...

Page 6: ... Single Stage Heat Single Stage Cooling where R Red W White G Green BL Blue Note Brown wire is not used and is to be taped Figure 6 Two Stage Heat Single Stage Cooling where R Red W White BR Brown G Green BL Blue ...

Page 7: ...Terminal Block HC Heater Contactor HTR Heater Element PLS Primary Limit Switch SLS Secondary Limit Switch L3 L1 L2 Wiring is subject to change always refer to the wiring diagram on the unit for the most up to date wiring WARNING WIRING DIAGRAM ...

Page 8: ...ays refer to the wiring diagram on the unit for the most up to date wiring WARNING WIRING DIAGRAM L3 L2 L1 Legend FR Fan Relay FU Fuse TB Terminal Block HC Heater Contactor HTR Heater Element PLS Primary Limit Switch SLS Secondary Limit Switch ...

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