AER INNOVATION INN800 Manuale utente

Innovation Series Hot Water Boiler GF-5065

Electrical Power Guide – INTERNATIONAL EDITION TAG-0082_0B

02/23/2017 AERCO International, Inc. •100 Oritani Dr. •Blauvelt, New York 10913 •Phone: 800-526-0288 Page 1of 5

ELECTRICAL POWER GUIDE

–– INTERNATIONAL EDITION ––

Natural Gas Modulating,

Condensing Hot Water

Boiler Models:

•INN800

•INN1060

•INN1350

Technical Support:

(Mon–Fri, 8am-5pm EST)

1-800-526-0288

www.aerco.com

Latest Revision: 02/23/2017

DISCLAIMER

The information contained in this manual is subject to change without notice from

AERCO International, Inc. AERCO makes no warranty of any kind with respect to this

material, including, but not limited to, implied warranties of merchantability and fitness

for a particular application. AERCO International is not liable for errors appearing in

this manual, nor for incidental or consequential damages occurring in connection with

the furnishing, performance, or use of these materials.

INNOVATION

Gas-Fired Hot Water Boilers

Innovation Series Hot Water Boiler GF-5065

Electrical Power Guide – INTERNATIONAL EDITION TAG-0082_0B

02/23/2017 AERCO International, Inc. •100 Oritani Dr. •Blauvelt, New York 10913 •Phone: 800-526-0288 Page 2of 5

1GENERAL

Innovation (INN) Gas Fired Hot Water Boilers are fully factory wired and packaged units which require

simple power wiring as part of the installation. This technical guide is intended to help designers

provide electrical power wiring (line voltage) to Innovation units. Control wiring details are provided in

other publications depending on the intended application. This document is intended as a guide only,

and cannot include all alternatives, situations, or be totally inclusive. To comply with all codes and

authorities having jurisdiction, designers and installers must plan the electrical wiring carefully and

execute the installation completely. Emergency shutoffs, fusible fire switches, break glass stations,

and other electrical requirements should be considered and installed whenever necessary.

2Hot Water Boiler Electrical Requirements

Innovation Hot Water Boilers require the following electrical supply:

220 volts, single phase, 50 Hz, 15 Amps

Refer to Figure 1 for typical electrical shutoff disconnect switch location.

Figure 1. Service Switch Typical Location

The distribution block for field connection is located in the upper right of the control box (see Figure 2).

All copper wire must be connected to the terminal distribution block. Voltages lower than the rated

input will result in increased wear and premature failure of the blower motor. Wire size and type

should be made per the National Electrical Code based on length and load.

ELECTRICAL SHUTOFF

DISCONNECT SWITCH

Innovation Series Hot Water Boiler GF-5065

Electrical Power Guide – INTERNATIONAL EDITION TAG-0082_0B

02/23/2017 AERCO International, Inc. •100 Oritani Dr. •Blauvelt, New York 10913 •Phone: 800-526-0288 Page 3of 5

Figure 2 shows the location of the Power Box containing the terminal block connections. The Power

Box is accessed by removing the front panel of the unit.

Figure 2. Power Box and Terminal Block Location

All units that operate with a 220 VAC power source include a 220 VAC to 120 VAC transformer. This

transformer is installed inside the unit, as shown in Figure 3, and is pre-wired. The 220 VAC electrical

connection is made in the Power Box (see Figure 2).

Figure 3. 220V Transformer – Front Frame & Panel and Side Panels Removed

POWER BOX

TERMINAL

BLOCK

Power Box Shown With Cover Removed

220 VAC to 120 VAC

TRANSFORMER

Innovation Series Hot Water Boiler GF-5065

Electrical Power Guide – INTERNATIONAL EDITION TAG-0082_0B

02/23/2017 AERCO International, Inc. •100 Oritani Dr. •Blauvelt, New York 10913 •Phone: 800-526-0288 Page 4of 5

3Provisions for Service

Designers must provide emergency shutoffs and other devices to satisfy electrical codes. It is also recommended

to provide an electrical shutoff disconnect switch of suitable load carrying characteristics on or near each Hot

Water Boiler. No electrical boxes or field components should be mounted to the surface of the unit or where they

would interfere with the removal of the side or top panels for maintenance. The disconnect switch should be

mounted near the unit as illustrated in Figure 1. Wiring conduit, EMT, or other wiring paths should not be secured

to the unit, but supported externally. Electricians should be instructed as to where the wiring conduit should be

located, such as away from the relief valve discharge, drains, etc. All electrical conduit and hardware should be

installed so that it does not interfere with the removal of any cover, inhibit service or maintenance, or prevent

access between the unit and walls or another unit.

4Unit Wiring

A dedicated protected circuit should be provided from the power source to the unit. No other electrical devices

should be permanently wired on the same circuit. An emergency switch (electrical shutoff) must be in series with

the power to the unit. Refer to Figure 4 for the wiring connections to the terminal block contained in the unit’s

Power Box.

5Multiple Unit Wiring

Whenever multiple units are installed within the same mechanical spaces, electrical code requirements call for a

single electrical shutoff for emergency use. It is the responsibility of the electrical designer to comply with local

codes and regulations affecting an individual installation.

Figure 4. 220V/1∅/50 Hz Wiring Schematic

TERMINAL BLOCK IN

POWER BOX

DISCONNECT SWITCH

SINGLE-POLE, 10 AMP

220V/1/50Hz

1 POLE 10 AMP

CIRCUIT BREAKER

GND

L2/N

Innovation Series Hot Water Boiler GF-5065

Electrical Power Guide – INTERNATIONAL EDITION TAG-0082_0B

02/23/2017 AERCO International, Inc. •100 Oritani Dr. •Blauvelt, New York 10913 •Phone: 800-526-0288 Page 5of 5

Change Log

Date Description

05/18/2015 Rev A: Initial Release

02/23/2017 Rev B:

PIR 1177-8

: Added 220 VAC to 120 VAC transformer Chris Blair

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