Viessmann 7946564 User manual

Brand: Viessmann

Model: 7946564

Type: User manual

Viessmann 7946564 Combustion Air Intake Adaptor Kit enables the use of an external combustion air source for Viessmann Vitocrossal 200 CI2 boilers, enhancing safety and efficiency. It prevents combustion air from being drawn from the room where the boiler is installed, ensuring a reliable air supply for optimal boiler operation.

Installation Instructions

6178 722 - 01 10/2021

Combustion Air

Intake Adaptor Kit

Please file in Service Binder

Refer to the Installation Instructions

applicable to this boiler.

Preparing the Boiler (CI2 399 to 1000)

Ensure that main power to the equipment being serviced

is off.

Ensure that the main fuel supply valve to the boiler is

closed.

Take precautions to avoid accidental activation of power

or fuel during service work.

Do not perform service work on any component part

without ensuring safe operation of the heating system.

When replacing parts, use original Viessmann or

Viessmann approved replacement parts.

Safety and Installation Requirements

Please ensure that these instructions are read and

understood before starting any service work. Failure to

comply with these instructions may cause product/property

damage, severe personal injury and/or loss of life.

Working on the equipment

The installation, adjustment, service and maintenance of

this product must be performed by a licensed professional

heating contractor who is qualified and experienced in

the installation, service, and maintenance of hot water

boilers. There are no user serviceable parts on the boiler,

burner or control.

CI2 399, 500, 750, 1000

for use with Vitocrossal 200 CI2 Boilers

Part # 7946564, 399/500

Part # 7946563, 750/1000

Part # 7946562, 1500

Part # 7946561, 2000

for use by heating contractor

1. Shut off and disconnect the boiler power supply.

2. Push back top panels to access the front panel release

(top panel removal is not required).

3. Using a screwdriver push down on the front panel

releases.

4. Pull forward at the top of the front panel and lift up

to remove.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Removing the Air Intake Tube (CI2 750/1000)

Routing the Flexible Air Intake Tube (CI2 399 to 1000)

1. For Vitocrossal 200 CI2 models 750/1000,

remove burner air intake tube.

1. Route flexible combustion air intake tube under the

right side of the boiler out the rear jacketing cut out.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Installing the Burner Adaptor (CI2 399 to 1000)

CI2 399/500

CI2 750/1000

Installing the Retaining Bracket (CI2 399 to 1000)

CI2 399/500

1. Apply sealing tape to the burner air inlet.

2. Mount the burner adapter to the burner and secure in

place with a hose clamp.

3. Secure the flexible combustion air inlet tube to the

burner adaptor with a hose clamp.

1. Mount the burner adapter to the flange at the base

of the burner.

2. Secure in place with supplied hardware.

3. Secure the flexible combustion air inlet tube to the

burner adaptor with a hose clamp.

1. Install the combustion air inlet bracket to the

combustion air inlet restraint.

2. Using the supplied clamp, secure the flexible

combustion air inlet tube to the rigid adaptor.

3. For the CI2 399/500 models only, install the reducing

coupling to the rigid adaptor.

4. Secure the combustion air inlet brackets to the boiler.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Closing the Boiler (CI2 399 to 1000)

CI2 399, 500, 750, 1000

Preparing the Boiler (CI2 1500/2000)

CI2 1500/2000

1. Place the bottom of the front panel on the front sill.

2. Push in the top of the front panel until you hear a click.

3. Pull back the top panels.

1. Shut off and disconnect the boiler power supply.

2. Flip up the handle in the top panel.

3. Using the handle, pull straight up.

4. Using a screw driver, push in on the panel retaining

clip while pulling up on the handle to remove the panel

(the location is donated by an up arrow in the panel).

5. Using a screwdriver push down on the front panel

release.

6. Pull forward at the top of the front panel and lift up

to remove.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Removing the Burner Inlet Tube (CI2 1500/2000)

Removing the Retaining Panel (CI2 1500/2000)

CI2 1500/2000

Remove burner inlet tube from 1000 MBH burners.

Note: the CI2 2000 is equipped with two 1000 MBH

burners.

1. Remove the screws from the front retaining panel.

2. Slide down front retaining panel to remove.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Installing the Burner Adaptors (CI2 1500/2000)

Positioning the Combustion Air Pan (CI2 1500/2000)

500 MBH

1000 MBH

CI2 1500/2000

For CI2 1500

1. Apply sealing tape to the top burner.

2. Mount the burner adapter to the burner and secure in

place with a hose clamp.

3. Secure the flexible combustion air inlet tube to the

burner adaptor with a hose clamp.

4. Mount the burner adapter to the flange at the base

of the burner.

5. Secure in place with supplied hardware. Secure the

flexible combustion air inlet tube to the burner

adaptor with a hose clamp.

Note: for the CI2 2000, repeat steps 4 and 5 for the

upper burner.

1. Remove front wheels and re-install upside down on

frame rail for future use.

2. Remove adaptor collar from the combustion air intake

pan.

3. Slide the combustion air intake pan underneath the

boiler until it protrudes from the rear.

4. Re attached the adaptor collar to the combustion air

intake pan.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Connecting the Burners to the Combustion Air Intake Pan (CI2 1500/2000)

CI2 1500/2000

Combustion Air Inlet Reducer (CI2 1500)

1. Connect the flexible combustion air inlet tube of each

burner to the combustion air inlet pan.

2. Slide the front retaining panel into position..

3. Secure in place with screws.

For CI2 1500 only

Install the combustion air inlet reducer to the combustion

air pan, at the rear of the boiler.

6178 722 - 01

Vitocrossal 200 CI2 Combustion Air Intake Adaptor Kit Installation

Technical information subject to change without notice. Printed on environmentally friendly

(recycled and recyclable) paper.

Closing the Boiler

CI2 1500/2000

1. Place the bottom of the front panel on the front sill.

2. Push in the top of the front panel until you hear a click.

3. Lower the top front panel into position.

4. Flip down the top panel handle.

Scan for a

digital copy

of this

document

Viessmann 7946564 User manual

Viessmann 7946564 User manual

Viessmann 7946564 User manual

Related papers

Other documents