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3040531_0711

General

The present operation and maintenance instructions are exclusively applicable for Wolf

unit heaters LH.

Read these instructions carefully prior to the installation.

These instructions, as a part of the unit, have to be kept accessible.

No warranty claims will be accepted if operation and maintenance instructions are not

adhered to.

Symbols

The following symbols are used in these instructions. These important instructions

concern personal safety, as well as technical reliability.

"Safety instructions" are instructions with which you must comply exactly, to

prevent injury and material losses.

Danger through "live" electrical components.

Never touch electrical components or contacts when the ON/OFF switch is in

the ON position.

This creates a risk of electrocution, which may cause injury or death.

"Attention" indicates technical instructions which you must observe, to prevent

material losses and unit malfunctions.

In addition to the operation and maintenance instructions there are as well stick-on

labels on the unit, which have to be adhered to in the same manner.

Attention :

General / Symbols

Содержание LH

Страница 1: ...aintenance Instructions Unit Heaters LH Translation of the original N d art 3040531_0711 Subject to modifications GB WolfGmbH Postfach1380 84048Mainburg Tél 08751 74 0 Fax08751 741600 Internet www wolf heiztechnik de ...

Страница 2: ...allation 6 7 Installation instructions 8 10 Electrical connection 11 Switches 12 14 Control devices for damper actuators 15 Thermostats 16 Control system WRS 17 20 Actuators 21 Push button 21 Intermediate terminal box 22 Maintenance 23 Frost protection 23 Hydraulic adaption of unit heaters within a group 24 Rain protection hood and roof lead in box 25 26 Notes 27 Index ...

Страница 3: ...ersonal safety as well as technical reliability Safety instructions are instructions with which you must comply exactly to prevent injury and material losses Danger through live electrical components Never touch electrical components or contacts when the ON OFF switch is in the ON position This creates a risk of electrocution which may cause injury or death Attention indicates technical instructio...

Страница 4: ...ons Unit Description Wolf unit heaters consist of a zinc plated sheet steel casing The casing is composed of a self supporting pentapost profile construction which is welded and zinc plated and of zinc plated lateral casing panels The casing is provided with a LPHW heating coil which consists either of copper tubes and aluminium fins or galvanized finned steel tubes The air inlet is provided with ...

Страница 5: ...galvanized NP 10 up to 140 C threaded sleeves Heat exchanger steel galvanized NP 10 up to 180 C welded flanges Operation limits for steam Heat exchanger Co Al type D up to 9 bar saturated steam Heat exchanger Co Al upt to 9 bar saturated steam Attention Inceiling mountedunitstheremayoccurdamagesbyoverheatingwhenmotorisswiched off For this reason the water inlet temperature has to be limited on Mot...

Страница 6: ...discharge Wide spread discharge Wide spread discharge Wide spread discharge 4 5 m Cone Cone Louvre Wide spread 5 6 m Cone Cone Cone Louvre à partir de 6 m Cone Cone Cone Cone If the temperature difference t air exceeds 30K the above selection table is no longer applicable because of the reduced penetration Prior to the Installation 7 15 m 7 15 m 3 7 m Air throw Spacing Spacing Spacing Primary air ...

Страница 7: ...ll mounted unit LH 25 40 63 100 Type 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Air throw m high speed 19 18 16 15 27 26 23 21 29 27 25 23 36 35 34 32 low speed 16 15 13 12 20 19 16 14 22 20 18 17 30 28 26 25 Figures represent air throws on defined operating conditions mixing temperature 10 K above room temperature Air throw m Angle of adjustment Speed of air stream in utility area 0 2m sec 0 2 m sec Height ...

Страница 8: ...ll mounted units exceeding a max length Lmax provide an additional support or suspension on site LH 100 with steel galvanized heat exchangers type 2 and 3 require this additional support or suspension already at a unit length of L Lmax LH 25 40 63 100 Lmax mm 1100 1100 1100 1220 120 65 5 240 25 9 9 Threaded sheft Lmax Suspension Bracket Support Mounting brackets Fit mounting brackets to LH unit by...

Страница 9: ...l To prevent the unit from dropping before fitting the pipework the inferior suspending rail may be secured additionally by fitting it to the concrete bar with screws and dowels Fastening kit for concrete bar vertical Suitable for all types af steel bars at a flange width b of min 100 mm up to max 300 mm and a flange thickness t of min 6 mm up to max 21 mm Fit fixing rail to steel bar with enclose...

Страница 10: ...ns of threaded rods M8 on site b t Suspending rail Fastening brackets LH Unit Inclination equalization Clamping jaws Threaded rods M8 on site b b t t b t Fig 1 Fig 2 Fig 3 Fastening kit for steel bar horizontal and inclined wit hout inclination equalization Suitable for all types of steel bars at a flange width b of min 100 mm up to max 300 mm and a flange thickness t of min 6 mm up to max 21 mm F...

Страница 11: ...i e step switch DS U1 V1 W1 W2 U2 V2 PE 12 11 1 2 4 PE U1 V1 W1 W2 U2 V2 TK TK R1 R2 5 PE U1 V1 W1 W2 U2 V2 PE 12 11 1 2 4 PE 5 U1 V1 W1 W2 U2 V2 PE 12 11 1 2 4 PE 5 LH step switch or control device i e step switch DS LH unit with termal cutouts and anti frost thermostat L1 11 N 12 PE 11 Z1 U1 Z2 12 U2 PE PE N L1 R1 R2 N VM PE 5 step switch E5 3 Terminal box at mixing box 11 Z1 U1 Z2 12 U2 PE PE N...

Страница 12: ...on voltage 400 V Control voltage 230 V Max capacity 4 kW Weight 0 9 kg Prot class IP 54 Part no 79 25 110 PE N L3 L2 L1 U1 2 1 U1 V1 W1 W2 U2 V2 11 PE 12 V1 W1 4 R2 N K1 L1 L2 L3 3 S1 F1 3 15A J Single step switch D1 for single speed operation of one or several unit heaters Automatic start up when winding tempera ture drops motor Operation voltage 400 V Control voltage 230 V Max capacity 3 kW Weig...

Страница 13: ...ertemperature motor Reclosing switch position 0 then select requiered stage Contact for heating requirements Whenn connecting a room thermostat remove link Fan motor with thermal cutout Five step switch E 5 3 for five speed operation of one or several unit heaters with single phase AC motors with complete motor protection Automatic start up when winding tempera ture drops motor Operation voltage 2...

Страница 14: ...on manufacture type Contact 3 4 heating requirements F2 F3 F4 5 AT Link acc to motor type plate Fan motor with thermal cutout When connecting a room thermostat remove link H1 Service H2 Interruption S1 K1 Contact seizure depending on manufacture type Contact 3 4 heating requirements Fan motor with thermal cutout 3 stage switch E3 7T with reclosing lock out for 3 speed operation of one or more unit...

Страница 15: ...switch fresh air mixed air on site Actuator Open Shut Switch Automatic relay A1 Reverse function by changing of 2 and 3 Automatic relay A1S Auxiliary relay with integrated position transmitterfortheautomaticoperationofthe mixed air damper by means of a stepless actuator 230 V The automatic relay A1S switches the actuator to the position set on the position transmitter if the LH unit is switched of...

Страница 16: ...lass IP 54 Part no 27 35 300 Room thermostat Heavy duty design 3 J 1 2 Max current 10 4 A at 230 V 50 Hz Temperature range 5 40 C Differential adjustable 2 10 K Differential 0 1up to 3 K Storage locations 16 Function reserve 15 minutes Shortest switching interval 10 minutes Protection class IP 20 Part no 27 44 079 Room thermostat clock with weekly program external remote sensor optional Plastic ho...

Страница 17: ... one heat source demand optimised boiler water temperature demand via eBUS eBus interface with automatic energy management LM1 Ventilation control unit incl room temperature sensor LM2 ventilation control unit ventilation module LM2 to control the room temperature via speed or mixing valve 2 stage motor control in conjunction with ventilation module LM1 or variable motor control in conjunction wit...

Страница 18: ...ter heating with room temperature control supply unit heater boiler heating circuit pump room sensor BML OS LM1 This configuration is used for heating buildings in conjunction with air heaters The room temperature is captured by a sensor and the fan the heating circuit pump and the heat source are switched on or off depending on demand If the temperature deviation set room temperature to actual ro...

Страница 19: ...and the heat source are switched on or off depending on demand Description 12 9 5 13 7 2 3 14 4 1 10 11 8 Netz SS Netz LM1 X1 LM2 X2 BML X2 M1 X2 B3 X1 Y2 M1 X1 K1 eBus X1 M2 X1 Y1 X2 M2 B1 X1 B5 X1 B1 X1 Y3 X1 B2 X1 B4 LM2 X1 LM1 X2 Example Unit heater heating with room temperature control mixing valve control motor control 2 stage No Description 1 room sensor 2 supply air sensor 3 outside sensor...

Страница 20: ...heating with room temperature control mixing control motor control with electronic 5 stage speed regulator No Description 1 room sensor 2 supply air sensor 3 outside sensor 4 ceiling sensor 5 mixed air damper 6 fan 7 frequency inverter 8 heating circuit pump 9 heating circuit mixing valve 10 heat source 11 anti frost thermostat 12 induction louvre LM2 boiler Installation diagram mixed air unit mix...

Страница 21: ... 063 Actuator for automatic operation of damper induction louvre and mixing valve Controlling only by automatic relay A1 and position transmitter Power consumption 5 VA Rotation direction reversible Torque drive 15 Nm Running time 100 200 sec Protection class IP 42 Part no 22 69 522 Stepless actuator 230 V 50 Hz Actuator for automatic opening and clo sing of the fresh air damper Controlling only b...

Страница 22: ...rmediate terminal box switch or control device Intermediate terminal box for a parallel operation of several LH unit heaters It is possible to wire one control device and three LH unit heaters or one control device two LH unit heaters and an additional intermediate terminal box LH unit heaters of different sizes and performances of up to the max possible perfor mance or rather the max possible cur...

Страница 23: ...an be cleaned with the help of compressed air batting or vacuum cleaner All the remaining parts as motor fan impeller mixing box adjustable fins and actuator are maintenance free Prior to finishing maintenance check safe fastening of the LH unit Before operation and after a longer rest period the pump has to be vented For this purpose the LH unit has to be switched off To proceed accordingly remov...

Страница 24: ...ctions Example 2 Pipework assembly according to the Tichelmann system equally long pipes per unit heater replace the individual adjustment VL RL advantage no pressure adjustment required disadvantage higher expenditure of pipework unit heater boiler Individual adjustment via control valves in addition to the connection fittings Example 1 VL RL advantage low expenditure of pipework disadvantage pre...

Страница 25: ...e included Covering collar Installation and sealing on site X Rain protection hood Roof sealing on site Covering collar Installation and sealing on site Roof lead in box As an option and on extra price it is possible to supply 4 fastening angles for fitting the roof lead in box Fitting of fastening angles to be done on site because of different types of roofs and variable pitch Roof fastening Noti...

Страница 26: ...ction or unit heater underneath the roof Flexible connection Roof lead in box Flange of angle profile on the whole perimeter generally spot welded Unit heater Direct fitting of unit heater or mixing box to the external angle flange This flange is provided with the matching bore holes for the angle brackets of the unit heater mixing box or filter section on the whole perimeter Non flexible connecti...

Страница 27: ...3040531_0711 27 Notes ...

Страница 28: ...WolfGmbH Postfach1380 84048Mainburg Tél 08751 74 0 Fax08751 741600 Internet www wolf heiztechnik de ...

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