Electrical And Control Wiring; Building Electrical Service Inspection; Wire Sizing; Maximum Overcurrent Protection (Mop) - Daikin DV PTC 14 Series Installation Instructions Manual

HEAT KIT NOMINAL kW
CFM
3 5 6
800
10 17 21
1000
8 13 17
1200
7 11 14
1400
6 10 12
1600
5 8 10
1800
5 7
2000
4 7
208/1/60 SUPPLY VOLTAGE - TEMP. RISE °F
Model
3 5
DV25PTCB14 550 650 700
DV29PTCB14 550 650 700
DV35PTCB14 550 650 700
DV37PTCB14 550 650 700
DV33PTCC14 600 700 750
DV39PTCC14 700 770
DV49PTCC14 800 800
DV31PTCC14 600 700 770
DV37PTCC14 700 770
DV59PTCC14 800 800
DV37PTCD14 870 970 1060 1120 1220
DV59PTCD14 990 1110 1200 1240 1520
DV49PTCD14 950 1060 1150 1220 1520
DV61PTCD14 1030 1150 1250 1320 1650
MINIMUM CFM REQUIRED FOR HEATER KITS
Please refer to page 16 for specific heater kit application guidelines.
MINIMUM CFM REQUIRED FOR HEATER KITS
*Please refer to page 16 for specific heater kit application
guidelines.

12 Electrical and Control Wiring

IMPORTANT: All routing of electrical wiring must be made through
provided electrical knockouts. Do not cut, puncture or alter the
cabinet for electrical wiring.

12.1 Building Electrical Service Inspection

This unit is designed for single-phase electrical supply only.
DO NOT OPERATE ON A THREE-PHASE POWER SUPPLY.
Measure the power supply to the unit. The supply voltage must
be measured and be in agreement with the unit nameplate
power requirements and within the range shown.
Nominal Input Minimum Voltage
208 - 240
ELECTRICAL VOLTAGE
8 10 15 19/20
28 33 52
22 27 40
19 22 33
16 19 29
14 17 25
9 12 15 22
8 11 13 20
Table 5
Heater (kW)
6 8 10 15 19
800 850 875
800 875 875
800 875 1050
800 875 1050
850 920 950
880 970 1090 1280
950 1090 1290 1345
880 970 1090 1280
880 970 1090 1280
950 1090 1290 1345
Table 6
Maximum Voltage
197 253
Table 7

12.2 Wire Sizing

Wire size is important to the operation of your equipment. Use
25
the following check list when selecting the appropriate wire size
for your unit.
45 56
38 48
FIRE HAZARD!
33 42
To avoid the risk of property damage, personal injury or fire,
30 37
use only copper conductors.
27 33
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
20 25
Failure to do so may cause property damage,
personal injury or death.
HIGH VOLTAGE!
To avoid property damage, personal injury or death due to
electrical shock, this unit MUST have an
unbroken electrical ground. The electrical ground circuit may
consist of an appropriately sized electrical wire connecting the
ground lug in the unit control box to the building electrical
1250
service panel.
1520
Other methods of grounding are permitted if performed in
accordance with the National Electric Code (NEC)/American
1690 1750 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.
• Wire used must carry the Minimum Circuit Ampacity (MCA)
listed on the unit's Series and Rating Plate.
• Refer to the NEC (USA) or CSA (Canada) for wire sizing.
The unit MCA for the air handler and the optional electric
heat kit can be found on the unit Series and Rating Plate.
• Wire must be sized to allow no more than a 2% voltage drop
from the building breaker/fuse panel to the unit.
• Wires with different insulation temperature rating have
varying ampacities - be sure to check the temperature rating
used.
Refer to the latest edition of the National Electric Code or in
Canada the Canadian Electric Code when determining the
correct wire size.

12.3 Maximum Overcurrent Protection (MOP)

Every installation must include an NEC (USA) or CEC (Canada)
approved overcurrent protection device. Also, check with local
or state codes for any special regional requirements.
Protection can be in the form of fusing or HACR style circuit
breakers. The Series and Rating Plate provides the maximum
overcurrent device permissible.
NOTE: Fuses or circuit breakers are to be sized larger than the
equipment MCA but not to exceed the MOP.
11
CAUTION
uninterrupted,