Baxi Potterton WH46, WH65 manual Setting the Boiler Parameters, H91

Page 29

16. SETTING THE BOILER PARAMETERS

The boiler parameters may only be modified by professionally qualified staff proceeding as follows:

a)Press the , keys on the boiler’s front panel together for about 3 s until the parameter H90 appears on the display;

b)Press the keys to select the parameter for modification;

c)Press the and keys to modify the parameter;

d)Press the key to exit the programming function.

The following are the parameters generally used:

N° parametro

Description

Factory setting

 

 

 

H90

Setting for domestic hot water reduced temperature (°C)

10

 

 

 

H91

D.H.W. (Domestic Hot Water) program

1

(0 = enabled; 1 = disabled)

 

 

 

 

 

 

Maximum temperature (°C) of the central heating circuit HC1 corresponding to:

 

 

- the main circuit in systems with just one zone;

 

H505

- the circuit of the zone where the QAA73 temperature control device is installed in case of

80

systems with more than one high-temperature zone;

 

 

 

- the high temperature zone circuit in mixed systems and if the SIEMENS AGU2.500 accessory

 

 

is used.

 

 

 

 

H507

Maximum temperature (°C) of the central heating circuit HC2 of a system with more than one

 

zone, corresponding to the circuit of the low-temperature zone if the SIEMENS AGU2.500

80

 

accessory is used.

 

 

 

 

H516

Automatic Summer / Winter switching temperature (°C).

20

 

 

 

H532

Selection of temperature curve of central heating circuit HC1 (see Graph 1)

15

 

 

 

H533

Selection of temperature curve of central heating circuit HC2 (see Graph 1)

15

 

 

 

H536

Maximum speed at maximum output in heating mode (rpm - maximum speed limitation)

 

 

 

 

H612

Setting value of required speed (rpm) at low-fire

Refer to

H536-H613

Setting value of required speed (rpm) at high-fire heating / domestic hot water mode

paragraph 12.1

 

 

 

H541-H610

PWM (%) setting: maximum output in heating / domestic hot water mode

 

 

 

 

H544

Pump post-circulation time in central heating mode (min)

10

 

 

 

H545

Burner operating pause time between two start-ups (s)

180

 

 

 

H552

Hydraulic system setting (see instructions provided with the SIEMENS AGU2.500 accessory).

 

H552 = 50 with AGU2.500

2

 

H552 = 80 with RVA 47

 

 

 

 

H553

Configuration of heating circuits

21

H553 = 12 with AGU2.500

 

 

 

 

 

H615

Programmable function

9

 

 

 

 

Configuration of system with low loss header P1

 

 

H632 = 00001111 with AGU2.500

 

 

H632 = 00001000 with storage tank without low loss header

 

H632

The value of Bit could be 1 or 0.

00001100

 

 

 

Press the keys 5 and 6 to select the bit to modify (b0 is the bit on the right, b7 is the last bit

 

 

on the left).

 

 

To modify the Bit value press on the keys 7 and 8

 

 

 

 

H641

Fan post-purge interval (s)

10

 

 

 

 

Setpoint of autonomous ANTILEGIONELLA function

 

H657

60...80 °C = setting temperature range

0

 

 

 

0 = function inactive

 

 

 

 

Table 4

 

 

If the electronic circuit board is replaced, make sure that the parameters set are those specific to the boiler model, as indicated in the documentation available from the authorised Service Centre.

(*) For these parameters see section 13 (hydraulic system).

INSTRUCTIONS PERTAINING TO THE INSTALLER

29

926.772.1 - GB/IE

 

 

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Contents WALL-MOUNTED Condensing Boilers INSTALLATION, Operation and Maintenance ManualContents Instructions Prior to Commissioning Instructions Prior to InstallationKeys Commissioning of the BoilerDescription of Keys Central heating mode operating keySetting the Maximum HOT Water Temperature Setting the Maximum Central Heating TemperatureSetting the Minimum Central Heating Temperature Setting the daily times for central heating mode operationTable for USER-SETTABLE Parameters Fault Warnings and Resetting the BoilerE110 Fault Warnings TableServicing Instructions and GAS Change Filling the BoilerTurning OFF the Boiler Heating circuit New system General InformationHot water circuit Existing system Boiler InstallationBoiler Size Installation of Flue and AIR DuctsHorizontal Concentric Flues Concentric flueVertical Flue Terminal Ø 80/125 mm Installation Options Horizontal Flue Terminal Ø 80/125 Installation OptionsHydraulic System Hydraulic DiagramPCB AGU Heat Exchanger Pressure Drop Connecting the Mains Supply AC 50 Hz 1 a max cos φ Connecting the PumpsConnecting the HOT Water Tank Sensor CLIP-IN AGU Description of the Electrical Connections to the BoilerFault messages Connecting the QAA73 Temperature RegulatorWithout QAA73 room temperature regulator Connecting the Outdoor Temperature SensorWith AGU2.500 for control of a low temperature system With QAA73 room temperature regulatorGAS Valve Adjustment PCI MJ/Kg NET 34.02 H91 Setting the Boiler ParametersControl and Operation Devices Check of Combustion Parameters Activating the CHIMNEY-SWEEP Function Annual ServiceBoiler Schematic Illustrated Wiring Diagram Boiler model WH Category Technical DataTelephone

WH46, WH65 specifications

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In conclusion, the Baxi Potterton WH65 and WH46 are exemplary heating solutions that combine power, efficiency, and user-friendly features. They cater to diverse heating needs while ensuring durability and compliance with modern energy standards, making them a popular choice among consumers and heating professionals alike.
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