Hoval Uno-3 95 Technical Information And Assembly Instructions
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Hoval Uno-3 95 Technical Information And Assembly Instructions

Hoval Uno-3 95 Technical Information And Assembly Instructions

Oil/gas boilers
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Technical information
Assembly instructions
Uno-3 (95-125)
Oil/gas boilers
Hoval products must be installed and commissioned only
by appropriately qualified experts. These instructions
are intended exclusively for the specialist. Electrical
installations may only be carried out by a qualified
electrician.
Subject to modifi cations
|
4 205 116 / 02 - 02/14
These instructions are applicable to the
following types:
7-Uno-3 (95,110,125)
7-Uno-3 b-i* (95,110,125)
* = Burner integrated
Uno-3 (95-125) boilers are suitable and licensed for
use as heat generators for hot water heating systems
with a permissible flow temperature of up to 100 °C
They are designed for closed-circuit systems, but can
also be installed in open systems as per EN 12828.
See technical data
1)
.
1)
EN

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Summary of Contents for Hoval Uno-3 95

  • Page 1 7-Uno-3 (95,110,125) 7-Uno-3 b-i* (95,110,125) * = Burner integrated Hoval products must be installed and commissioned only Uno-3 (95-125) boilers are suitable and licensed for by appropriately qualified experts. These instructions use as heat generators for hot water heating systems are intended exclusively for the specialist.

  • Page 2: Table Of Contents

    Table of Contents 4 205 116 / 02 Important information Other instructions ........................... 3 Safety information ........................... 3 Regulations, official approvals ......................3 Guarantee ..............................4 Installation Setting up, levelling ..........................5 Fitting the heat insulation ........................6 Fitting the casing ............................ 8 Technical information Description of the boiler ........................

  • Page 3: Important Information

    All instructions relevant to your system can be found the formation of scale in hot water heating systems. in the Hoval system manual! In exceptional cases, - DIN 57 116 / VDI 0116 Electrical equipment for the instructions can be found enclosed with the firing systems (VDE Regulation).

  • Page 4: Guarantee

    Important notes 4 205 116 / 02 Guarantee Proper function is only guaranteed providing these instructions are followed and the boiler is regularly maintained by a licensed specialist. (Maintenance contract). The rectification of faults and damage as a result of contaminated operating materials (gas, water, combustion air), unsuitable chemical additives and an inadmissibly high lime content of the heating water, improper handling, faulty installation,...

  • Page 5: Installation

    Installation 4 205 116 / 02 Installation Boiler door pivotable to the left It is possible to change the attachment of the boiler Setting up, levelling door so that it opens towards the left. This can be of A special foundation plate for the boiler is not an advantage when installing the boiler in a corner.

  • Page 6: Fitting The Heat Insulation

    Installation 4 205 116 / 02...
  • Page 7 Installation 4 205 116 / 02...

  • Page 8: Fitting The Casing

    Installation 4 205 116 / 02...
  • Page 9 Installation 4 205 116 / 02...

  • Page 10: Technical Information

    Technical information 4 205 116 / 02 Technical information to the turning chamber, from where they flow through rectangular ducts (thermolytic heating surface) towards Description of the boiler the rear and reach the flue gas collector. The Uno-3 is a threepass boiler. At the end of the The flue gas temperatures can be varied within circular cylindrical combustion chamber, the flame a specific range through the installation of various...

  • Page 11: Technical Data Uno-3 (95-110) For Switzerland

    At nominal output, the pollutant limit values and flue gas losses as per regulation LRV 92 (CH) are complied with. Controller U3.1 and T2.2 Controller U3.2 and T0.2 Flow resistance boiler in mbar = flow rate (m Data valid for Hoval oil compact heat station b-i Possible operating conditions Fuel Heating oil EL...

  • Page 12: Technical Data Uno-3 (110,125) For All Other Countries

    Controller U3.2 and T0.2, operating pressure may be increased to 4 or 5 bar in countries in which the Pressure Equipment Directive is not in force. Flow resistance boiler in mbar = flow rate (m³/h) Information applies to combinations with Hoval-tested oil burner Possible operating conditions...

  • Page 13: Dimensions

    Technical information 4 205 116 / 02 Dimensions (Third-party burner) Flow type 130-160 DN 50, PN 6 Return type DN 50, PN 6 Safety flow R 1 ¼" Flow for calorifier R 1 ¼" Return for calorifier R 1 ¼" Drain pipe R 1"...

  • Page 14: Installation

    Technical information 4 205 116 / 02 Installation Existing flue gas systems may require upgrading Boiler room requirements or adjustment of the flue duct cross-section as Regarding the building specifications for boiler rooms indicated by a chimney engineer. and their supply and extract air handling, the current building supervisory office regulations specific to the The correct functioning of the flue duct, i.e.
  • Page 15 Technical information 4 205 116 / 02 Basic data: Normally only one heat producer may Flue gas pipeline 5 m long, 2 90° elbows and be connected to the chimney! 1 45° elbow, outside air 15°C, height above sea level max.

  • Page 16: Fitting The Burner

    Technical information 4 205 116 / 02 Fitting the burner - Depending on the size of the burner flange, an intermediate flange may be required to attach the burner. - To allow the burner to be swung out 90° to the left or right, the connections must be flexible and routed to the burner in sufficiently large loops.

  • Page 17: Fuel

    Technical information 4 205 116 / 02 Fuel Even in partial load operation, the flue gas temperature must not fall below The boiler is only to be operated with 100 °C. the fuel stated on the boiler rating plate. Uno-3 boilers are suitable for the combustion of the Regulators following fuels: - Heating oil EL in accordance with DIN 51 603 /...

  • Page 18: Flue Gas And Performance Diagrams

    Technical information 4 205 116 / 02 4.6.1 Flue gas and performance diagrams Uno-3 (95) Uno-3 (110) 100 105 110 3R5+1R2/290 3R5+2R3/290 Uno-3 (125) 3R5+2R3/290 The curves shown here represent an average value based on measurements taken with burners from various manufacturers.

  • Page 19: Flow Mixing Loop / Minimum Limitation Of The Boiler Return Temperature

    Technical information 4 205 116 / 02 Flue gas temperature under other operating Safety valves conditions The heating system and hot water supply must each be protected with one safety valve against impermissibly Influence of the boiler water temperature on the high pressures.

  • Page 20: Commissioning

    In particular, attention must be paid to the following stipu- lations: Filling and replacement water • Hoval boilers and calorifi ers are designed for heating • For a plant using Hoval boilers untreated drinking water plants without signifi cant oxygen intake (plant type I ac- cording to EN 14868).

  • Page 21: Filling The Heating System

    Commissioning 4 205 116 / 02 Filling the heating system Filling of the heating system must be carried out by trained personnel. The filling and replacement water must comply with the quality requirements in the relevant state or country (VDI 2035 or SWKI 88-4 or ÖNORM H 5195).

  • Page 22: Maintenance

    Maintenance 4 205 116 / 02 Maintenance Information for fire inspector / chimney sweep regarding emission monitor key All other control elements of the control unit are described in the operating instructions. The emission monitor key can also be used to change over to manual operating mode. Emission monitor key / Manual operation To protect under fl...

  • Page 23: Cleaning

    Maintenance 4 205 116 / 02 Cleaning Cleaning should be performed at least twice per year. Cleaning at intermediate intervals is necessary if the flue gas temperature rises. 6.2.1 Preparatory work - Switch boiler off (controller: set switch to "O," pull the burner plug) - Interrupt the fuel supply - Open the boiler door...

  • Page 24: Overview Of Settings

    Overview of settings 4 205 116 / 02 Overview of settings Table of parameters Regulator Setting range / Designation Factory Setting values Type of device: DHW: Address: Surface operation Key : Heating curve HC OFF, 0,20 ..3,5 Heating curve MC1 OFF, 0,20 ..
  • Page 25 Overview of settings 4 205 116 / 02 Table for Time programs DHW circuit Time program P1 Time program P2 Time program P3 Cycle 1 Cycle 2 Cycle 3 Cycle 1 Cycle 2 Cycle 3 Cycle 1 Cycle 2 Cycle 3 from from from...
  • Page 26 Overview of settings 4 205 116 / 02 HYDRAULIC Par. Designation Factory Lev. Function allocation of the output DHW charging pump Function allocation of the output Mixer circuit 1 Function allocation of the output Mixer circuit 2 Function allocation of the output Direct circuit Pump Function allocation of the variable output 1 Function allocation of the variable output 2 OFF/ 4/ 43...
  • Page 27 Overview of settings 4 205 116 / 02 Par. Designation Factory Lev. DHW-NIGHT DHW - economy temperature 40/ 45 °C DHW-legionella protection-day 2:00 DHW-egionella protection-time 50/ 55/ 65/ DHW-legionella protection-temperature 70 °C DHW-temperature recording 50/ 55/ 65/ DHW-maximum temperature limit 70 °C DHW-mode of operation ON/ OFF...
  • Page 28 Overview of settings 4 205 116 / 02 MIX. VALVE-1 Par. Designation Factory Lev. Type of reduced operation ECO/ ABS MK= 1,10 Heating system (exponent) Room override (in connection with room sensor) Room factor 100 % Adaptation heating curve Switch-on optimisation Heating limit Room frost protection limit 10 °C...
  • Page 29 Overview of settings 4 205 116 / 02 MIX. VALVE-2 Par. Designation Factory Lev. Type of reduced operation ECO/ ABS MK= 1,10 Heating system (exponent) Room override (in connection with room sensor) Room factor 100 % Adaptation heating curve Switch-on optimisation Heating limit Room frost protection limit 10 °C...
  • Page 30 Overview of settings 4 205 116 / 02 HEAT GENER. Par. Designation Factory Lev. H-GEN model 1/ 2/ 5 OFF/ 3 Start-up protection H-GEN 5/ 48/ 65/ 75 Minimum temperature limit H-GEN °C 75/ 85 °C Maximum temperature limit H-GEN Mode of action minimum temperature limit H-GEN Sensor mode operation for H-GEN Minimum burner running time...
  • Page 31 Overview of settings 4 205 116 / 02 RETURN CONTR Par. Designation Factory Lev. Minimum limit return temperature / reference value return 38 °C temperature Switch-off difference Pump follow-on time 1 min SOLAR Par. Designation Factory Lev. 10 K Switch-on difference Switch-off difference Minimum running time SOP 3 min...
  • Page 32 Overview of settings 4 205 116 / 02 BUFFER Par. Designation Factory Lev. Minimum temperature 5/ 20 °C 95 °C Maximum temperature 8/ 10/ 12K Temperature elevation, H-GEN Switching difference 2/ 5/ 10K Forced discharge Skimming function switch-on difference 10 K Skimming function switch-off difference Start-up protection Discharge protection...
  • Page 33 Overview of settings 4 205 116 / 02 SERVICE Par. Designation Factory Lev. Service 1 (Cleaning ST1 ) Suspend message «CLEANING ST-1» for X days Cleaning according to fi xed date Cleaning according to fi xed interval Cleaning according to cleaning counter Reset cleaning display 1 Service 2 (Cleaning ST2) Suspend message «CLEANING ST-2»...

  • Page 34: Overview Of Alarms Toptronic ® T

    Overview of settings 4 205 116 / 02 FAULT REPORTING OVERVIEW TopTronic ® Status Designation Fault type Code Remark System External sensor Interruption 10-0 System External sensor Short-circuit 10-1 System Boiler sensor Interruption 11-0 System Boiler sensor Short-circuit 11-1 System Flow sensor 1 Interruption 12-0...
  • Page 35 Regulator with address 10 is System Activity 70-8 missing System Activity Data bus error 70-9 No Hoval regulator System HP return sensor Return min. temp. below setpoint 85-4 System HP return sensor Return max. temp. exceeded 85-5 Heat source min. temp. below...
  • Page 36 4 205 116 / 02...
  • Page 37 4 205 116 / 02...
  • Page 38 COPY FOR PLANT USER Confirmation The user (owner) of the system herewith confi rms that • he has received adequate instruction in the operating and maintenance of the installation, • received and taken note of the operating and maintenance instructions and, where applicable other documents con- cerning the heat generator and any further components.

This manual is also suitable for:

Uno-3 110Uno-3 125

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