Unical TRIOPREX N Series Installation, Use And Servicing Instruction
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Unical TRIOPREX N Series Installation, Use And Servicing Instruction

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26743 - 11/08
rev. 2
TRIOPREX N
INSTALLATION, USE AND
SERVICING INSTRUCTION
(to be kept by the user)

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  • Page 1 TRIOPREX N INSTALLATION, USE AND SERVICING INSTRUCTION 26743 - 11/08 (to be kept by the user) rev. 2...
  • Page 2 Approvals The UNICAL boilers, TRIOPREX-N range, have been tested and CE certified for the gas operation by TECHNIGAS (BELGIUM), who has recognised to these boilers the conformity certificate according to the following directives: Gas Appliances Directive (90/396 CE), compulsory as per 1st January 1996;...
  • Page 3 Installation and Servicing Instructions or as otherwise recommended by Unical in writing. If in doubt please inquire. Any direct connection of a control device not approved by Unical could invalidate the certification and the normal appliance warranty.

  • Page 4: Table Of Contents

    CONSTRUCTIONAL-DIMENSIONAL TECHNICAL CHARACTERISTICS ....page 1.1 Construction of the TRIOPREX-N boilers ......page 1.2 Working principle ..............page 1.3 Dimensions and hydraulic connections ........ page INSTALLATION ..............page 2.1 Packaging ................page 2.2 Handling ................. page 2.3 Positioning in the boiler house ..........page 2.4 Connection to the chimney ...........

  • Page 5: Constructional-Dimensional Technical Characteristics

    UNICAL, to reduce the NOx formation on the and sent again to the combustion chamber TRIOPREX-N range of boilers, has adopted with the combustion air.
  • Page 6 1.3 - DIMENSIONS AND HYDRAULIC CONNECTIONS FOR TRIOPREX-N TRIOPREX-N 65÷85 n°4 "L" fig. 2 Panel board T1 C.H. flow T4 Boiler drain Smoke chamber cleaning door T2 C.H. return T5 Flue connection Flame sight glass T3 Expansion vessel connection T6 Max. burner blast tube dia. Output Input Boiler...
  • Page 7 TRIOPREX-N 110÷380 T1-T3-T2 n°4 "L" fig. 4 Panel board T1 C.H. flow T4 Boiler drain Smoke chamber cleaning door T2 C.H. return T5 Flue connection Flame sight glass T3 Expansion vessel connection T6 Max. burner blast tube dia. TRIOPREX N Output Input Boiler...
  • Page 8 TRIOPREX-N 500÷730 fig. 8 Panel board T1 C.H. flow T4 Boiler drain Smoke chamber cleaning door T2 C.H. return T5 Flue connection Flame sight glass T3 Expansion vessel connection T6 Max. burner blast tube dia. Output Input Boiler Water side Smoke side Maximum Weight...
  • Page 9 TRIOPREX-N 840 T1-T3-T2 fig. 10 Panel board T1 C.H. flow T4 Boiler drain Smoke chamber cleaning door T2 C.H. return T5 Flue connection Flame sight glass T3 Expansion vessel connection T6 Max. burner blast tube dia. Output Input Boiler Water side Smoke side Maximum Weight...
  • Page 10 TRIOPREX-N 1100÷1900 T3-T1-T2 fig. 12 Panel board T1 C.H. flow T4 Boiler drain Smoke chamber cleaning door T2 C.H. return T5 Flue connection Flame sight glass T3 Expansion vessel connection T6 Max. burner blast tube dia. TRIOPREX N Output Input Boiler Water side Smoke side...

  • Page 11: Installation

    INSTALLATION 2.1 - PACKAGING the length and the width of the boiler body a carton containing the flanges for flow, received correspond to the dimensions M, Q return and safety connections (if applicable) The TRIOPREX-N boilers are supplied e R of the ordered boiler, shown in the previous with relevant gaskets and bolts, the complete with door and smoke chamber already fitted, whilst the casing with the...

  • Page 12: Connection To The Chimney

    2.4 - CONNECTION TO THE the chimney is concerned, it is necessary to materials. CHIMNEY make reference to the local and national rules The different connections must be sealed with in force. an approved boiler putty so that the inlet of In the flue pipe, between the boiler and fresh air, with consequent increase of the The chimney has a foundamental importance...

  • Page 13: Shunt Pump

    2.5.6 - SHUNT PUMP connections, upstream an eventual 3 or 4 way Q = P x 22 The TRIOPREX-N boilers must always operate mixing valve. in forced circulation hot water systems and where Q = Water flow rate in liter/h This pump will be sized according to the with a minimum return temperature of 55 °C.

  • Page 14: Connection Of The Sightglass To The Burner Via Acooling Line

    the flexible hoses for the oil and the electrical cables are long enough to allow the 90° opening of the boiler door. For gas burners the use of flexible pipes for the gas is not allowed; so the final part of the gas feeding line to the burner must have the possibility to be removed, via a threaded or flanged connection.

  • Page 15: Casing Assembly

    2.9 - CASING ASSEMBLY N.B. It is suggested to verify that the boiler is sure they are stamped with the right boiler N.B.: The packaging containing the panel positioned in its final place and that all the model, corresponding to the boiler to be board is delivered inside the combustion hydraulic connections are made correctly installed.
  • Page 16 TRIOPREX N 65÷85 fig. 18 TRIOPREX N 65÷85 Thermometer bulb Working thermostat bulb Minimum thermostat bulb Safety thermostat bulb fig. 19 Bulb retaining clip...
  • Page 17 Assembly of the casing for TX-N 110 to 380 should be carried out in the following steps: Refer to diagram on fig. 20 & 21 for details: A) Fit the insulation blanket (1) onto the boiler with the insulation it self. and 13) to the side panels.
  • Page 18 TRIOPREX N 110÷380 Thermometer bulb Working thermostat bulb Minimum thermostat bulb fig. 21 Safety thermostat bulb Bulb retaining clip Casing mounting sequence for TX-N 500/730 (Ref. figs. 22 and 23) A) Fit to the front and rear tube plates the TS 3 P), before removing the precut pump(s) and any ancillary equipment to four upper brackets (pos.
  • Page 19 TRIOPREX N 500÷730 fig. 22 TRIOPREX N 500÷730 Thermometer bulb Working thermostat bulb Minimum thermostat bulb Safety thermostat bulb fig. 23 Bulb retaining clip...
  • Page 20 Casing mounting sequence for TX N 840 (Ref. figs. 24 and 25) A) Fit the insulation blanket (1) onto the boiler panel board to the side upper panels (3 & 5). cable clamps (15). shell and secure it in to place using the Guide the burner plug through the side M) Remove the protective paper film from elasticated straps (2) provided, ensuring...
  • Page 21 TRIOPREX N 840 Thermometer bulb Working thermostat bulb Minimum thermostat bulb Safety thermostat bulb fig. 25 Bulb retaining clip Sequence of bulbs introduction Introduce the bulbs into the bulb holder, in the upper part of the boiler body, in the following sequence (Ref.
  • Page 22 TRIOPREX N 1100÷1900 4a 5 fig. 27 Casing mounting sequence for TX-N 1100/ Insert the side ends of the insulation under Guide the burner plug through the side 1900 (Ref. figs. 26 & 27) the bend of the two side panels (3a & 4a). cable clamp plate (5) on the preferred side D) Fit the rear insulation (pos.
  • Page 23 Electrical cables positioning The panel board Standard or with outer compensator) is equipped with a burner cable, a PG 11 gland (pos. 2) and a 7 pole plug (pos. 3) - See wiring diagrams on figs. 30 and When fitting the panel board the leads of the burner cable, which has to be passed through i c a the cable gland, must be connected to the...

  • Page 24: Standard Panel Board

    STANDARD PANEL BOARD 3.1 - PANEL BOARD TYPE 21056 (mod. TX N 65÷TX N 185). PANEL BOARD TYPE 21057 (mod. TX N 225÷TX N 1900). FUNCTIONS DESCRIPTION Through the main switch 11 the panel board and all the equipments connected to it will be under power.

  • Page 25: Introduction Of The Electronic Panel Board Type 30688

    The mixing valve and the relevant motor are two different heating zones. not supplied by Unical. The automatic operation is made on the base of When the room sensor is not fitted (it is the data detected by the boiler, D.H.W.
  • Page 26 3.5 - ELECTRICAL WIRING DIAGRAM FOR SINGLE PHASE BURNER AND PUMPS TERMINAL OF KROMSCHRÖDER OUTER COMPENSATOR F1 (max 4 A) 230V~ 50Hz 230V~ 50Hz (max 4A) (max 4A) (30°C) (100°C) (30°÷90°C) Ipi2 Ipi1 2nd stage Seven pole connector Ph Phase (230V ~ 50Hz) Ipi2 2 C.H.

  • Page 27: Outer Compensator

    3.6 - OUTER COMPENSATOR On how to adjust or to program the outer parameters, which are "not changeable" and compensator, please refer to the instruction the parameters which are adjustable by the manual supplied with the outer compensator. user according to his needs. In the following table we list the factory set PARAMETERS PROGRAMMABLE BY A TECHNICIAN AND PROTECTED BY AN ACCESS CODE INSTALLATION...
  • Page 28 HEATING CIRCUIT 1 Designation Value range Default HC FUNCTION 00 - 04 PUMP MODE 00 , 03 MIXER OPEN 5 - 25 (not for HW circuit) MIXER CLOSE 5 - 25 (not for HW circuit) MAX FLOW-T 80 °C 20 °C - 110 °C MIN FLOW-T 10 °C - 110 °C 10 °C...
  • Page 29 PARAMETERS PROGRAMMABLE BY THE USER PARAMETERS DISPAYED AT THE COMMISSIONING STAGE Start INSTALLATION, Set value, Save value and next value GERMAN Set language TIME Set current time: 1. Minute 2. Hour YEAR Set current date MONTH Set current date Set current date BUS ID 1 1 1 1 1 Enter heating circuit number “1”: 00-15...
  • Page 30 HEATING CIRCUIT 1 Designation Value range Default MODE - - - - - - - - T-ROOM DES 1*) 5 °C - 40 °C 20 °C T-ROOM DES 2 5 °C - 40 °C 20 °C T-ROOM DES 3 5 °C - 40 °C 20 °C ECONO TEMP *) 5 °C - 40 °C...
  • Page 31 HEAT CIRCUIT 1 Designation Value range HEAT PROGRAM 1 Mo. / Tu. / We. / TH. / Fr. : 06:00 to 22:00 FACTORY SETTING: Sa. /Su. : 07:00 to 23:00 HEAT PROGRAM 2 Mo. / Tu. / We. / TH. / Fr. : 06:00 to 08:00, FACTORY SETTING: 16:00 to 22:00...

  • Page 32: Electrical And Hydraulic Connections Of C.h

    3.7 - ELECTRICAL AND HYDRAULIC CONNECTIONS OF C.H. In the fig. 34 the typical connection of the boiler to C.H. system with two heating zones, of which one is with motorized mixing valve. Both, the heating zones are controled by an outer compensator.

  • Page 33: Commissioning And Operation

    COMMISSIONING AND OPERATION 4.1 - POSITIONING OF THE TURBULATORS The TRIOPREX-N boilers are designed to be used in an output range to improve the seasonal efficiency and the possibility to be adopted in all the heating installations. The output must be adjusted at the commissioning stage, according to the system designer indications and, in any case, within the operation range for each boiler model...

  • Page 34: Preliminary Check

    4.2 - PRELIMINARY CHECK been completely purged. equipment of the boiler. Once all the hydraulic, electrical and fuel The pumps operate properly. The burner is adjusted for the fuel type, connections have been made, before starting The flow switch, the pressure relief valve, among those listed in the burner data plate, the boiler we suggest to ascertain that: and the overheating discharge valve, if...

  • Page 35: Maintenance

    MAINTENANCE 5.1 - GENERAL RULES The non respect of the above can jeopardize In case of a heavy dirtiness: the safety of the boiler. Remove the turbulators from smoke pipes. Before effecting any operation of cleaning or To guarantee the efficiency of the boiler and Clean all the smoke pipes using the brush maintenance, disconnect the boiler from the for its correct operation it is essential to submit...

  • Page 36: Cleaning Of The Boiler

    5.4 - CLEANING OF THE Open the front door. BOILER from the smoke chamber. Shake and remove the turbulators every Re-fit the cleaning doors. 15-20 days of activity of the boiler to avoid Verify the state of the refractory insulation that the residues of combustion can stop Follow the next sequence: of the combustion chamber door.
  • Page 37 Note:...
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  • Page 40 Unical AG declines any liability for the inaccuriaces that may appear due to errors in trascription or printing. It also reserves the right to introduce those modifications to its products that it considers necesssary or useful, without compromising the essential characteristics of the said products.

This manual is also suitable for:

Tx n 65Tx n 85Tx n 110Tx n 150Tx n 185Tx n 225 ... Show all

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