Viessmann V AH-300 Betriebsanleitung

5601325 GB 3/2020 Please keep safe.

Installation and service

instructions

for contractors

VIESMANN

Condensate lifting system

V AH-300

Safety instructions

Please follow these safety instructions closely to prevent accidents

and material losses.

Safety instructions explained

Danger

This symbol warns against the

risk of injury.

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

Note

Details identified by the word "Note"

contain additional information.

Target group

These instructions are exclusively

intended for qualified contractors.

■ Work on electrical equipment may

only be carried out by a qualified

electrician.

Regulations to be observed

■ National installation regulations

■ Statutory regulations for the preven-

tion of accidents

■ Statutory regulations for environmen-

tal protection

■ Codes of practice of the relevant

trade associations

■ Relevant country-specific safety reg-

ulations

Working on the system

■ Isolate the system from the power

supply, e.g. by removing the separate

fuse or by means of a mains isolator,

and check that it is no longer live.

■ Safeguard the system against recon-

nection.

■ Wear suitable personal protective

equipment when carrying out any

work.

Danger

Hot surfaces and fluids can lead

to burns or scalding.

■ Before maintenance and serv-

ice work, switch off the appli-

ance and let it cool down.

■ Do not touch hot surfaces on

the appliance, fittings or pipe-

work.

!Please note

Electronic assemblies can be

damaged by electrostatic dis-

charge.

Prior to commencing work,

touch earthed objects such as

heating or water pipes to dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil

a safety function can compro-

mise the safe operation of the

system.

Replace faulty components only

with genuine Viessmann spare

parts.

Disposal of packaging

Please dispose of packaging waste in

line with statutory regulations.

Safety instructions (cont.)

5601325

Condensate removal pump V AH-300

Suitable for pumping neutralised con-

densate from condensing boilers, con-

densate from gas condensing boilers

with a pH value >3, clear water and

slightly contaminated DHW.

The condensate removal pump is also

suitable for constant operation.

The condensate removal pump is not

suitable for pumping the following liq-

uids:

■ Non-neutralised condensate from oil

condensing boilers

■ Salt water

■ Water containing chlorine

■ Condensate with textile or paper par-

ticles

■ Aggressive liquids/chemicals

■ Corrosive, flammable, explosive and

gas emitting liquids

Spare parts lists

Information about spare parts can be

found at www.viessmann.com/etapp

or in the Viessmann spare part app.

Product information

5601325

Dimensions

440

400 150

300

268

Siting

Requirements of the installation room

■ Frost protection

■ Protection against chemicals, dyes,

solvents and dust

■ Protection against high radiation tem-

peratures and direct sunlight

■ Sufficiently large, horizontal, level

and load-bearing installation surface

■ Easy accessibility for maintenance

work

■ Available socket 230 V/50 Hz (per-

manent voltage) in the immediate

vicinity. The length of the power cable

is 2 m.

■ Existing sewer connection (min. DN

40). This must allow drainage of min.

18 l/min without obstruction

Note

Choose an installation location that

means the supply and drain hoses are

as short as possible.

Preparing for installation

5601325

0°

ANeutralising system BCondensate lifting system

1. Remove the cover from the con-

tainer and take out the small parts

supplied.

2. Fit supply hose connection (either

DN 20 or DN 25) with a gasket and

nuts.

3. Install the condensate lifting system

in the required location.

4. Route the supply hose to the con-

densate lifting system with a fall.

Secure the hose with hose clips.

Note

Never step on the hose. Protect the

hose against mechanical damage.

5. Route the drain hose into the drain-

age system. Secure the hose with

hose clips.

Note

■ Secure the free end of the drain

hose, because water flows out

under pressure

■ If the drain hose is extended

and/or constricted by hose con-

nectors, this leads to a reduction

in the pump rate/delivery head

6. Close the condensate lifting system

cover.

Positioning and connecting

5601325

Note

The level switch and overflow alarm

switch must be fully inserted into the

locking ring fitting, so that they rest

against the locking ring fitting.

Positioning and connecting (cont.)

5601325

Note

If there is no bottom drain, a suitable

alarm facility must be connected to the

potential-free overflow alarm switch.

Terminal assignment of the electrical

terminal box

M 1A

PE PE PE NN

123456 7 89

GNYE

L N

APower supply 230 V/50 Hz

BFeed pump 230 V/50 Hz

Colour coding to DIN IEC 60757

BN brown

BU blue

GNYE green/yellow

Terminal assignment of the overflow

alarm switch

Note

If required, connect the overflow alarm

switch with the sockets supplied in the

cap.

Breaking capacity: 250 V/6 A (resistive

load)

Electrical connection: Flat pin sockets

6.3 x 0.8 mm

Electrical connection

5601325

Note

During commissioning, instruct the sys-

tem user in the operation of the appli-

ance.

1. Insert the power plug.

2. Fill the system with water.

3. Test the function. Visually check for

leaks.

4. Record commissioning on

page 13.

Inspection and maintenance intervals

■Regular inspection can be carried

out by the user or any authorised,

qualified person. Inspection should

initially be carried out at short inter-

vals, then as required, but at least

every 6 months

■Maintenance work must be carried

out regularly subject to the volume

and contamination of the condensate,

but at least once a year. It must be

carried out by an approved heating

contractor or personnel trained by

this approved heating contractor

Inspection

1. Open the condensate lifting system

cover.

2. Check filter basket for contamina-

tion and clean if required.

3. Check that the hoses are secure.

4. Check that the level switch and

overflow alarm switch are posi-

tioned correctly. Both must be fully

inserted into the locking ring fitting,

so that they rest against the locking

ring fitting.

5. Carry out a visual inspection of all

components for damage and leaks.

6. Close the condensate lifting system

cover again.

Commissioning and adjustment

5601325

7. Record inspection on page 13.

Maintenance

01. Disconnect the power plug.

02. Open the condensate lifting system

cover.

03. Flush the feed pump with clean

water to remove any loose sludge.

04. Carry out a visual inspection of the

feed pump and check for damage.

05. Carry out a function check of the

feed pump and check the pump

rate by means of volumetric meas-

uring.

06. In the event of a pump fault or

obstruction of the pump flow, pos-

sibly caused by contamination

inside the pump:

Open pump cover and clean pump.

Then carefully clean the sealing

faces, refit the pump cover cor-

rectly (pressure chamber above

the pressure joint) and secure with

screws.

Note

First screw in the two fixing screws

next to the pressure joint and

tighten, then the ones opposite.

Then screw in and tighten all other

fixing screws.

!Please note

Leaks in the pump cover

lead to reduced output and

may result in damage to the

pump motor.

The cover must be airtight.

The formation of droplets is

permissible.

07. Clean the non-return valve and fil-

ter basket, replace if required.

08. Clean the supply hose, replace if

required.

Inspection (cont.)

5601325

09. Check that the level switch and

overflow alarm switch are posi-

tioned correctly. Both must be fully

inserted into the locking ring fitting,

so that they rest against the lock-

ing ring fitting.

10. Carry out a visual inspection of all

components for damage and leaks.

11. Close the condensate lifting sys-

tem cover again.

12. Restart the condensate lifting sys-

tem.

13. Record service on page 13.

Maintenance (cont.)

5601325

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