Camus Hydronics Avenger Series - PART 5 ELECTRICAL & CONTROLS; 5.1 ELECTRICAL CONNECTIONS

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PART 5 ELECTRICAL & CONTROLS
DANGER
IT IS EXTREMELY IMPORTANT THAT THIS UNIT BE PROPERLY GROUNDED
5.1 ELECTRICAL CONNECTIONS
Table 9: Minimum Power Requirements
Model Voltage Requirement
Maximum Over Current
Protection
Full Load Amps
[Amperes]
[Amperes]
1000 – 2000
115VAC, 60Hz
15
8.0
1000 – 2000
Δ
208/230VAC, 60Hz, 1 Phase*
15
9.5
2500 – 3500
208/230VAC, 60Hz, 1 Phase*
30
20
1000 - 3500
Δ
208/230VAC, 60Hz, 3 Phase**
20
12.0
4000
208/230VAC, 60Hz, 3 Phase**
30
18.0
*This is a 4-wire power supply requiring two (2) lives, a neutral and a ground
**This is a 5-wire power supply requiring three (3) lives, a neutral and a ground
Δ
Optional power supply
Avenger boilers supplied at 460/3/60 voltage, differ from the standard unit per the following:
CAUTION
While working with 460V circuits, it is imperative that extra precautions be taken
• Ensure that lock-out/tag-out procedures are strictly enforced
• Only properly trained and authorized personnel should be permitted to work on live electrical circuits
• All electrical workers should be trained in electrical rescue techniques and CPR
Each unit has a back mounted 500VA transformer to supply the single leg 115V necessary for the ignition circuit, which is factory mounted.
The boiler itself is a single point power connection. A 460V/3/60 variable frequency drive replaces the standard VFD, and the combustion
blower fan has been configured to operate at 460/3/60V (using the standard fan). Part numbers as well as FLA and MOCP information is
below.
500VA transformer: DC0500UH
VFD: Model Range:
ESV751N04TXB AR1000 – AR1500 (1hp)
ESV112N04TXB AR2000 (1.5hp)
ESV222N02YXB AR2500 – AR3500 (3hp)
ESV402N02TXB AR4000 (5hp)
Model Voltage Requirement
Maximum Over Current
Protection
Full Load Amps
(Amperes)
(Amperes)
1000
460VAC, 60Hz, 3 Phase 15
N/A
1500
1.4
2000
2.1
2500
3.3
3000
6.0
3500 – 4000
9.0
The combustion air fan motor operates on 230 VAC, 3 phase, 60Hz on models AR1000-4000. Three phase voltage is generated by the
VFD and supplied directly to the fan motor. Refer to Table 9 for appropriate supply voltage to the appliance. The appliance, when installed,
must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such
requirements, with the latest edition of the National Electrical Code ANSI/NFPA No. 70. When the unit is installed in Canada, it must
conform to the Canadian Electrical Code, C22.1, Part 1 and/or local Electrical Codes.
• All wiring between the appliance and field installed devices shall be made with wire having minimum 220°F (105°C) rating.
• Line voltage wire external to the appliance must be enclosed in approved conduit or approved metal clad cable.
• The pump must run continuously when appliance is firing.