Daikin EHS Series User manual

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).
BLOWER DOOR
CONTROL
BOX DOOR
HEAT BOX
COVER
HORIZONTAL
SUPPLY COVER
Figure 1
ELECTRIC HEATER KIT
ELECTRIC
PANEL PART
HEATING
ELEMENT PART
Figure 2
Wires and some components are not shown
Attention Installing Personnel
As a professional installer, you have an obligation to know the prod-
uct 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.
Description
These installation instructions supplement the electric heater kits
for installation in the following models:
DRC036, DRC048, DRC060, DRC072
DRH036, DRH048, DRH060, DRH072
DBC036, DBC048, DBC060, DBC072
DBH036, DBH048, DBH060, DBH072
These instructions should be used only as a supplement to
installation instructions IOD-1032 for DRC and DRH models,
or IOD-1043 for DBC and DBH models.
ELECTRIC HEAT KITS EHS And EHX foR
3-6 Ton LIGHT CoMMERCIAL Roof ToPUnITS
ModELS: dRC, dRH, dBC And dBH
InSTALLATIon InSTRUCTIonS
© 2019
19001 Kermier Rd., Waller, TX 77484
www.daikincomfort.com
P/N: IOD-7100 Date: November 2019
O
NLY
PERSONNEL THAT
HAVE
BEEN
TRAINED TO
INSTALL ,
ADJUST , SERVICE
OR
REPAIR (
HEREINAFTER , “ SERVICE
”) THE EQUIPMENT
SPECIFIED
IN THIS
MANUAL
SHOULD
SERVICE THE
EQUIPMENT . T HE MANUFACTURER WILL
NOT
BE
RESPONSIBLE
FOR
ANY
INJURY
OR
PROPERTY
DAMAGE
ARISING
FROM
IMPROPER SERVICE OR SERVICE PROCEDURES
. I F YOU SERVICE THIS
UNIT , YOU
ASSUME RESPONSIBILITY
FOR ANY INJURY OR
PROPERTY DAMAGE WHICH
MAY
RESULT . I
N ADDITION , IN
JURISDICTIONS THAT
REQUIRE ONE
OR MORE
LICENSES TO
SERVICE THE EQUIPMENT
SPECIFIED IN
THIS MANUAL , ONLY
LICENSED PERSONNEL
SHOULD SERVICE THE EQUIPMENT . I
MPROPER
INSTALLATION
, ADJUSTMENT ,
SERVICING OR
REPAIR
OF THE
EQUIPMENT
SPECIFIED IN THIS
MANUAL , OR ATTEMPTING TO
INSTALL , ADJUST , SERVICE OR
REPAIR THE EQUIPMENT
SPECIFIED IN THIS
MANUAL WITHOUT PROPER
TRAINING
MAY RESULT IN PRODUCT DAMAGE , PROPERTY DAMAGE
, PERSONAL
INJURY OR DEATH .
WARNING
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
0140M00517-A

2
5. Install heating element part of the heater kit (Figure 2) in the heater box using screws from heater box cover. Ensure the elements
are positioned in the retaining bracket as shown in Figure 3. It may be necessary to remove the horizontal supply cover to observe
the bracket. The heater box cover can be discarded.
6. Install electric panel part of the kit to the left side of the heater box using 3 screws supplied with this IO (Figure 4).
A
HEATING
ELEMENT
SCREWS FROM UNIT
FIGURE 3
BACK RODS OF HEATER KIT
TO BE PLACED IN SLOTS OF
RETAINER BRACKET
DETAIL A
7. Connect power to kit.
• Remove power cable from the box.
• Connect leads to breakers with one lead for each power leg.
• Route all leads through the blower deck and into the control box as shown in Figure 4.
• Connect the leads to the single point black with the far left lug (L1), the middle lug (L2), and the far right lug (L3).
NOTE: Single phase kits will only have 2 lugs (L1 and L2).
FIGURE 4
HEATING ELEMENT
CONNECT 9-PIN CONNECTOR
FROM UNIT TO 9-PIN CONNECTOR
OF HEATER KIT
BLACK WIRES FROM HEATER KIT
POWER BLOCK
3 SCREWS

3
8. Locate 9-pin plug in unit.
9. Connect the plug to the maiting 9-pin plug attached to heater kit
(Figure 4).
10. Install blower door and horizontal supply cover if it was removed.
11. Reconnect power.
12. Set up a required airow - CFM for your unit with electic heater
by selecting a proper speed tap. For details see Air Flow Ad-
justment chapter in IOD-1032 for DRC and DRH models or in
IOD-1043 for DBC and DBG models.
• Refer to Air Flow for Electric Heat table in this document to identi-
fy minimum required CFM for your unit with specic heater model.
• Refer to Appendix A - Blower Performance Tables for speed tap
selection in IOD-1032 for DRC and DRH models or in IOD-1043
for DBC and DBH models.
13. Close control box door.
14. Reconnect power to the unit.
15. Test unit to ensure it is functioning properly.
16. Place Heater wiring diagram beside unit diagram.
UNITS
HEATER KIT
MODEL NUMBER
kW
MINIMUM
SCFM
EH*-*S05 5
EH*-*S10 10
EH*-*S15 15
EH*-*S05 5
EH*-*S10 10
EH*-*S15 15
EH*-*S18 18
EH*-*S20 20
EH*-*S05 5
EH*-*S10 10
EH*-*S15 15
EH*-*S20 20
EH*-*S05 5
EH*-*S10 10
EH*-*S15 15
EH*-*S20 20
1950
AIR FLOW FOR ELECTRIC HEAT
DRC060, DRH060,
DBC060, DBH060
DRC036, DRH036,
DBC036, DBH036
DRC048, DRH048,
DBC048, DBH048
975
1300
1625
DRC072, DRH072,
DBC072, DBH072
HEATER KIT MODEL NUMBER NOMENCLATURE
E H * - * S 15
1 2 3 - 4 5 6, 7
Electric
Heater
Heater Type
X Staged
S SCR (modulating)
Voltage
1208-230/1/60 Single phase 60 Hz
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
55 kW
10 10 kW
15 15 kW
18 18 KW
20 20 kW
30 30 kW

4
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE
Quality Makes the Difference!
All of our systems are designed and manufactured with the same high quality standards regardless of size or ef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 qual-
ity 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
© 2019
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