Daikin DRC090 User manual

Description
These installation instructions supplement the electric heater
kits for installation in the following models:
DRC090, DRC102, DRC120, DRC150
DBC090, DBC102, DBC120, DBC150
DBH090, DBH102, DBH120, DBH150
These instructions should be used only as a supplement to
unit’s installation instruction manual. If the heater kit is installed
on a unit with DDC controls, reference the DDC user manual
for controller conguration instructions. The controller will not
control the heater kit unless it is properly congured.
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
INSTRUCTIONS
1. Disconnect all power to the unit, both indoor and outdoor.
2. Remove control box door.
3. Remove blower door.
4. Locate heater box. Remove screws holding the heater box
cover in place (Figure 1).
HORIZONTAL SUPPLY COVER
HEATER BOX COVERS
CONTROL
BOX DOOR
BLOWER DOOR
Figure 1
Attention Installing Personnel
As a professional installer, you have an obligation to know
the product better than the customer. This includes all safety
precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with
this Instruction Manual. Pay special attention to all safety
warnings. Often during installation or repair, it is possible to
place yourself in a position which is more hazardous than
when the unit is in operation.
Remember, it is your responsibility to install the product safely
and to know it well enough to be able to instruct a customer
in its safe use.
Safety is a matter of common sense...a matter of thinking
before acting. Most dealers have a list of specic good safety
practices...follow them.
The precautions listed in this Installation Manual are intended
as supplemental to existing practices. However, if there is a
direct conict between existing practices and the content of
this manual, the precautions listed here take precedence.
SAFETY CONSIDERATIONS
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards. It is
the owner’s and installer’s responsibility to read and comply
with all safety information and instructions accompanying
these symbols. Failure to heed safety information increases
the risk of personal injury, property damage, and/or product
damage.
ELECTRIC HEAT KITS EHXD, EHXB,


7.5-12.5TONLIGHTCOMMERCIALROOFTOPUNITS

INSTALLATION INSTRUCTIONS
© 2020
19001 Kermier Rd., Waller, TX 77484
www.daikincomfort.com
P/N: IOD-7117 Date: April 2020
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
WARNING
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov 0140M00517-A
WARNING
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      
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.

2
Figure 2
5. Insert heating element part of the heater kit (Figure 2) in
the heater box and slide it all the way to the right (Figure
3). Ensure the elements are positioned in the retaining
bracket as shown in Figure 4. Install the heater kit using the
screws from heater box cover and re-install the left heater
cover (small) as shown in Figure 6. It may be necessary to
remove the horizontal supply cover to observe the bracket.
The right heater box cover can be discarded.
6. Install electric panel (Figure 2) to the left side of the heater
box by inserting through the rail (Figure 5) and using 5
screws supplied with this IO (Figure 6).
HEATING ELEMENT
SCREWS FROM UNIT
Figure 3
7. Connect power to kit.
• Remove power cable from the box.
• Connect wire leads to the line side of the power block on the
heater kit’s electrical panel. Connect one wire lead per pole.
• Route all leads through the blower deck and into the control
box as shown in Figure 6.
• Connect wire leads to the load side of the power block in
the unit’s control box. Connect one wire lead per pole.
BACK RODS OF HEATER KIT TO BE PLACED
IN THE RETAINER BRACKET
Figure 4
RAIL
Figure 5
5 SCREWS
CONNECT 9-PIN CONNECTOR
FROM UNIT TO 9-PIN CONNECTOR
OF HEATER KIT
HEATING ELEMENT
HEATER COVER
POWER BLOCK
(LOAD SIDE)
BLACK WIRES
FROM HEATER KIT
Figure 6

3
8. Locate 9-pin plug in unit on the left side of the blower deck.
9. Connect the plug to the mating 9-pin plug attached to heater
kit (Figure 6).
10. For EHSD and EHSB models, verify that the SCR step
controlboard DIP switch settings match the wiring diagram
provided with the unit wiring diagram booklet.
11. Install blower door and horizontal supply cover if it was
removed.
12. Set up a required airow - CFM for your unit with electric
heater by selecting a proper speed tap. For details see Air
Flow Adjustment chapter in the unit’s instruction manual.
• Refer to Air Flow for Electric Heat table below to identify
minimum required CFM for your unit with specic heater
model.
• Refer to Appendix A - Blower Performance Tables for speed
tap selection in the unit’s instruction manual.
13. Close control box door.
14. Reconnect power to the unit.
15. Test unit to ensure it is functioning properly.
UNITS
HEATER KIT
MODEL NUMBER
kW
MINIMUM
SCFM
DBC090 & DBH090
EH*B-*M15
EH*B-*M30
EH*B-*M45
15
30
45
2400
DBC102 & DBH102
EH*B-*M15
EH*B-*M30
EH*B-*M45
15
30
45
2750
DBC120 & DBH120
EH*B-*M16
EH*B-*M31
EH*B-*M46
15
30
45
3250
DBC150 & DBH150
EH*B-*M16
EH*B-*M31
EH*B-*M46
15
30
45
3750
DRC102
EH*D-*M10
EH*D-*M15
EH*D-*M20
EH*D-*M30
EH*D-*M45
10
15
20
30
45
2850
DRC120
EH*D-*M10
EH*D-*M15
EH*D-*M20
EH*D-*M30
EH*D-*M45
EH*D-*M60
10
15
20
30
45
60
3150
DRC150
EH*D-*M10
EH*D-*M15
EH*D-*M20
EH*D-*M30
EH*D-*M45
EH*D-*M60
10
15
20
30
45
60
3750
10
15
20
30
45
AIR FLOW FOR ELECTRIC HEAT
DRC090
2500
EH*D-*M10
EH*D-*M15
EH*D-*M20
EH*D-*M30
EH*D-*M45
EH X D - 3 S 15
1 2 3 - 4 5 6, 7
Electric Heater
Heater Type
XStaged
SSCR (modulating)
Drive System
BBelt Drive
DDirect Drive
Voltage
3208-230/3/60 Three phase 60 Hz
4460/3/60 Three phase 60 Hz
7575/3/60 Three phase 60 Hz
Chassis
SSmall
MMedium
LLarge
Kilowatt
10 10 KW
15 15 KW
16 15 KW
20 20 KW
30 30 KW
31 30 KW
45 45 KW
46 45 KW
60 60 KW
HEATER KIT MODEL NUMBER NOMENCLATURE

NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE .
󰀨
All of our systems are designed and manufactured with the same high quality standards regardless of size or e󰀩ciency. We have designed
these units to signicantly reduce the most frequent causes of product failure. They are simple to service and forgiving to operate. We use
quality materials and components. Finally, every unit is run tested before it leaves the factory. That’s why we know. . .There’s No Better Quality.
Visit our website at www.daikincomfort.com for information on:
• Products
• Warranties
• Customer Services
• Parts
• Contractor Program and Training
• Financing Options
© 2020
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