Baxi PREMIER PLUS 800L Mode d’emploi

INSTALLATION AND USER INSTRUCTIONS

800L - 2500L Indirect

PREMIER PLUS

Russian Instructions on page 21

IMPORTANT

PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE

INSTALLING THE BAXI PREMIER PLUS WATER HEATER. INCORRECT

INSTALLATION MAY INVALIDATE GUARANTEE.

THE BAXI PREMIER PLUS WATER HEATER MUST BE INSTALLED BY A

QUALIFIED INSTALLER IN ACCORDANCE WITH LOCAL PLUMBING, BUILDING

AND ELECTRICAL REGULATIONS

THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND ABOVE

AND PERSONS WITH REDUCED PHYSICAL SENSORY OR MENTAL CAPABILITIES

OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE BEEN GIVEN

SUPERVISORY OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A

SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED. CHILDREN SHALL NOT

PLAY WITH THE APPLIANCE. CLEANING AND USER MAINTENANCE SHALL NOT

BE MADE BY CHILDREN WITHOUT SUPERVISION.

Also:

- Water may drip from the discharge pipe of the pressure-relief device and this pipe

must be left open to the atmosphere;

-The pressure-relief device is to be operated regularly to remove lime deposits and to

verify that it is not blocked;

- How hot water can be drained. (see page 10 for details)

TECHNICAL SPECIFICATIONS

Rated pressure: 1.5MPa (15 bar) Max*

Test pressure (hydraulic): 2.3MPa (23 bar)

Minimum recommended supply pressure: 0.15MPa (1.5 bar)

See Table 2, page 4 for a full specication list.

* A TPR (Temperature and Pressure Relief) valve between 8 Bar and 15 bar must be

installed. These tanks are supplied with a 10 Bar TPR.

1. IMPORTANT INSTALLATION POINTS

1.1 The BAXI Premier Plus water heater MUST be tted with a pressure relief valve

rated at 8 bar. FAILURE TO PROVIDE ADEQUATE PRESSURE RELIEF WILL

INVALIDATE ANY GUARANTEE AND LEAD TO A DANGEROUS INSTALLATION.

1.2 Where the inlet pressure exceeds 6 bar a pressure reducing valve (set at max.

6 bar) should be tted to the inlet supply to the heater. This MUST NOT be tted

between the pressure relief valve and the water heater (see Diagram 3, page 6).

1.3 A Check (Non-return) Valve should be tted to the inlet supply to the water heater.

This MUST NOT be tted between the pressure relief valve and the water heater.

(see Diagram 3, page 6). This may be provided as part of the inlet security group.

2. INSTALLATION – GENERAL

REQUIREMENTS

2.1 National Wiring rules may contain restrictions concerning the installation of these

water heaters in certain areas, eg bathrooms.

2.2 The water heater MUST be installed vertically.

2.4 Enough space should be left around the water heater for pipe connections and

for access to controls and any safety valves tted. Refer to diagram 2, page 5

and the dimensions table, page 4 to determine a suitable position for the water

heater.

2.5 NOTE: Ensure the oor can support the full weight of the water heater, see table

below, for cylinder weights.

2.6 DO NOT install where the water heater may freeze.

Diagram 1 - Lifting

Table 1: Dimensions

Direct Connection 800L 1000L Connection 1250L 1450L Connection 2000L 2500L

AN/A 1906 2301 N/A 1936 2253 N/A 2014 2419

B1487 1882 1408 1693 1410 1515

C437 437 527 527 606 605

DN/A 1024 1024 N/A 1224 1224 N/A 1470 1470

443 443 527 527 599 599

618 618 707 707 779 779

1183 1433 1172 1373 1225 1474

1 1/4” BSP

1 1/2” BSP 2” BSP

1 1/2” BSP

N/A N/A N/A

1” BSP 1” BSP 1” BSP

Table 2: Technical data

Notes:

1. Only 1 immersion heater per cylinder, bottom boss for inspection only.

2. At a primary ﬂow temperature of 80°C +/- 2°C

3. The primary coil should not be exposed to more than 0.3MPa (3 bar) without the cylinder

being full of water and under the minimum working pressure.

4. Temperature rise 15°C - 60°C (45°C)

5. Tested to EN 12897:2006

800

1000

1250

1450

2000

2500

Max direct kW rating 45 45 54 54 54 54

Coil surface area (m²) 3.0 3.0 5.0 5.0 7.5 7.5

Coil heat up times

(Mins)4

15l/min 80 91 112 130 180 225

30l/min 48 59 62 72 99 124

60/min 32 39 40 50 48 62

Coil rating (kW) ²

15l/min 31.3 32.9 35.0 30.1 40.2 37.5

30l/min 52.7 51.4 63.6 61.2 98.4 86.4

60l/min 76.9 76.5 97.9 91.7 132.2 126.4

Pressure drop through

coil (Bar)

15l/min 0.01 0.01 0.01

30l/min 0.08 0.06 0.07

60l/min 0.44 0.25 0.30

Heat loss (kW/24hrs) 2.74 3.33 3.60 3.90 4.30 4.50

Weight empty (kg) 164 188 319 322 445 450

Weight full (kg) 964 1188 1569 1872 2445 2950

Max mains pressure 2.5 MPa (25 bar)

Max design pressure 1.3 MPa (13 bar)

Operating pressure/PRV set pressure 1.0 MPa (10 bar)

Max primary pressure ³ 1.0MPa (10 bar)

Expansion relief valve setting 1.3 MPa (13 bar)

Immersion heater electrical rating

single phase

6kW and 9kW 50/60Hz ~

Immersion heater electrical rating

three phase

12kW - 54kW 50/60Hz ~

T&P Rating 90°C/10 bar

3. INSTALLATION – PLUMBING

3.1 Refer to section IMPORTANT INSTALLATION POINTS. Plumb in valves in the

sequence shown in Diagram 3, page 6. Ensure the valves are installed in the correct

orientation by reference to the direction of ow arrows marked on them.

3.2 The water connections on the water heater accept direct connection of 1” (to t

28mm pipe). The thread on the connections is G1” to enable the use of G1” male

connections to be used if required.

3.3 The sanitary water INLET is marked BLUE, the OUTLET is marked RED. Several

hot outlets can be served, however, individual site demands should be considered

when choosing capacity and the number of outlets to be served.

3.4 It is recommended that an isolating valve is tted on the cold water supply to the

heater.

3.5 A drain valve must be tted below the heater in the inlet pipe work. It must be sited

between the heater and the check valve or inlet valve set, if tted, (see Diagram 3, below)

3.6 A sanitary circuit expansion vessel may be tted to the cold water supply as shown

in Diagram 3, below to prevent wastage of expanded water. A range of expansion

vessels are available for this range of cylinders, see page 12 for details.

3.7 A re-circulation circuit can be installed on the sanitary water circuit. A connection

is provided for the re-circulation circuit return pipe (threaded G1” female). This

connection is supplied with a blanking plug tted which should be removed before

connecting the re-circulation circuit return pipe (see diagram 4, page 6).

3.8 The primary heating circuit MUST be fully pumped.

3.9 The connection sizes to the primary ow and primary return are shown in table 1,

page 4.

35°

40°

30°

45°

Diagram 2 - Dimensions

Diagram 4

Diagram 3

Element

Primary flow

Primary return

Secondary

return

To hot outlets

Mains water

supply

Balanced cold

water connection

Pressure reducing

valve

Pressure relief

valve

Inlet

Drain valve

Tundish

Discharge pipe

Boiler thermostatic

controls

Temperature

and Pressure

(T&P)

relief valve

Secondary

return

WRAS approved

pump

Cold water inlet

To hot outlets

None-return valve

4. ELECTRICAL REQUIREMENTS

4.1 The BAXI Premier Plus water heater is suitable for use with most gas or oil

red boilers provided the boiler has adequate thermostatic control and over-

temperature protection. If in doubt consult the boiler manufacturer.

4.2 The primary ow from the boiler MUST be pumped. Gravity circulation will not

work due to the special design of the primary heat exchanger. It is recommended

that an air bleed point or automatic air vent is incorporated into the highest point in

the system.

4.3 The water heater is tted with a control thermostat suitable for the control of the

sanitary water storage temperature. This thermostat should be connected, via the

terminal block provided, to the primary heating circuit controls. See diagrams 5

and 6, page 7 for wiring information.

1 2 3C 2

High limit

thermostat

Control

thermostat

Common

(S/L)

Load (Demand Contact)

Satised

°C

Temperature

Adjustment

Thermal cut-out

reset under screw

head

Diagram 5

Diagram 6

5. COMMISSIONING

5.1 DO NOT switch on either the immersion heater or boiler until the water heater has

been lled with water and checked for leaks.

5.2 Check that all installation, electrical and discharge pipe requirements have been

met.

5.3 Check that all water and electrical connections are correctly made and are tight.

5.4 Open a hot tap supplied by the water heater, turn on the cold water supply to the

water heater.

5.5 Allow the water heater to ll and leave the hot tap running for a short while to

purge any air and ush out the pipe work. Close the hot tap.

5.6 Open successive hot taps to purge any air from the system.

5.7 With all hot taps closed, check the system for water leaks and rectify as

necessary.

5.8 Manually test the operation of the pressure relief valve. Ensure water ows freely

from the valve and through the discharge pipe.

5.9 Fill the primary circuit following the boiler manufacturers commissioning

instructions. If motorised valves are used to control the primary ow ensure these

are set to the manual open position for commissioning. When the primary circuit

is full return the motorised valves to the AUTO position. Vent any trapped air by

opening the air bleed point or automatic air vent.

5.10 For heating by immersion heater (if tted), switch on the electrical supply to the

water heater and allow the water heater to heat. The thermostat is factory set to

control the storage temperature to approx. 60oC. Follow the immersion heater

tting instructions to change the set temperature to any required temperature.

5.11 For heating by indirect heat exchanger switch on the electrical supply to the

boiler and ensure the programmer is set to HOT WATER mode. Check that any

motorised valves or primary pumps are working and allow the water heater to

heat. The indirect control thermostat is factory set to give a storage temperature of

approx. 60oC. If necessary the temperature can be adjusted by rotating the knob

on the front of the control box, see diagram 6, page 7.

6. MAINTENANCE - DESCALING

IMMERSION HEATER (IF FITTED)

Warning: Before starting any work on the Baxi PremierPlus immersion

heater(s) switch off all electrical supplies to such immersion heater(s) including

thermostatic controls, these may be on a separate circuit.

6.1 Little maintenance is required, however in hard water areas the water heater will

require periodic de-scaling to ensure efcient operation. To de-scale the water

heater Immersion (if tted):

6.2 Switch off and disconnect the electrical supply and shut down the boiler (indirect

water heaters). Turn off the water supply to the water heater.

6.3 Open a hot tap served by the water heater to relieve any system pressure. Empty

the water heater by opening the drain valve in the inlet pipe work.

6.4 Remove the immersion heater cover and disconnect all wiring from the immersion

and thermostatic controls .

6.5 Remove the 8 bolts and withdraw the immersion heater from the cylinder. Take

care when lifting the immersion heater out of the cylinder and work within safe

working practices.

6.6 Carefully remove any scale from the surface of the element. DO NOT use a sharp

implement as damage to the element surface could be caused.

6.7 Ensure sealing surfaces are clean and seals are undamaged. If in doubt t a new

seal. The seal should be pre-soaked in ambient temperature water for 30 mins

before installation.

6.8 Replace immersion heater by replacing the 8 bolts and make sure they are

diametrically tightened and correctly torqued (20Nm or 14.7lb/ft).

6.9 Replace the immersion heater thermostat and thermal cut-out, ensure the

thermostat is pushed fully home.

6.10 Rewire the immersion heater and thermostatic controls in accordance with

immersion heater instructions

6.11 DO NOT SWITCH ON EITHER THE BOILER OR IMMERSION HEATER UNTIL

THE WATER HEATER HAS BEEN RE-FILLED WITH WATER. Re-commission the

water heater following the Installation and commissioning instructions.

7. MAINTENANCE - DESCALING

THE WATER HEATER

Warning: Before starting any work on the Baxi PremierPlus cylinder switch off

all electrical supplies to all controls and immersion heaters (if tted), these may

be on a separate circuit.

7.1 Switch off and disconnect the electrical supply and shut down the boiler (indirect

water heaters). Turn off the water supply to the water heater.

7.2 Open a hot tap served by the water heater to relieve any system pressure. Empty

the water heater by opening the drain valve in the inlet pipe work.

7.3 Remove the immersion heater cover and disconnect all wiring from the immersion

and thermostatic controls.

7.4 Remove the 8 bolts and withdraw the immersion heater from the cylinder. Take

care when lifting the immersion out of the cylinder and work within safe working

practices.

7.5 The loose scale in the base of the water heater can be removed by inserting the

suction hose on a “wet and dry” vacuum cleaner and sucking the scale out of the

water heater.

7.6 Replace immersion heater by replacing the 8 bolts and make sure they are

correctly torqued (20Nm or 14.7lb/ft).

7.7 Replace the immersion heater thermostat and thermal cut-out, ensure the

thermostat is pushed fully home.

7.8 Rewire the immersion heater and thermostatic controls in accordance with

immersion heater instructions.

7.9 DO NOT SWITCH ON EITHER THE BOILER OR IMMERSION HEATER UNTIL

THE WATER HEATER HAS BEEN RE-FILLED WITH WATER. Re-commission the

water heater following the Installation and commissioning instructions.

NOTE: The gasket should be pre-soaked in ambient temperature water for 30 mins

before installation and the 8 securing nuts are diametrically tightened to 20 Nm or

0.42psi

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