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Summary of Contents for Wolf LH
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Page 1: Maintenance Instructions
Operation and Maintenance Instructions Unit Heaters LH (Translation of the original) Wolf GmbH · Postfach 1380 · 84048 Mainburg · Tél. 08751/74-0 · Fax 08751/741600 · Internet : www.wolf-heiztechnik.de N° d’art. : 3040531_0711 Subject to modifications... -
Page 2: Table Of Contents
Index Index General ........................3 Symbols ........................3 Safety instructions ...................... 4 Standards and regulations..................4 Unit description ......................4 Installation and operation instructions ................ 5 Prior to the installation ................... 6 - 7 Installation instructions ..................8 - 10 Electrical connection....................11 Switches ...................... -
Page 3: Index General
General / Symbols 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. -
Page 4: Safety Instructions
Repair, modification and testing of electrical appliances General unit 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 description and design of zinc plated lateral casing panels. -
Page 5: Installation And Operation Instructions
When fan stops all control valves have to be closed automatically. Motors LH-three-phase motors (except explosion proof motors) may either operate on low spped Y or on high speed ∆. The motor windings are designed accordingly. Motors for single-phase alternating current may only oberate on high or low speed depending on delivery. -
Page 6: Prior To The Installation
Prior to the Installation Clearances Clearances for LH ceiling unit or wall Secondary Secondary unit in metres vortex vortex LH to LH LH to wall 7 - 9 3 - 4 9 - 11 3 - 5 Primary air Primary air... - Page 7 Prior to the Installation Clearances LH from LH 7 - 9m 9 - 11m 11 - 13m 13 - 15m Clearances for wall-mounted units LH to wall 3 - 4m 3 - 5m 4 - 6m 5 - 7m and clearances for ceiling-mounted units, vanes vertical.
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Page 8: Installation Instructions
For mounting on the ceiling with horizontal air outlet, first fix screws Ø 8 mm (on site) to the ceiling. Hang up LH-unit at key holes and tighten screws. For sloping the LH-unit from the ceiling, insert threaded shaft (8 mm) from side through slot of key holes and tighten by nut, counter-nut and 2 washers. - Page 9 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. Suspending rail Fastening bracket Fixing Fastening LH-Unit Suspending rail rail brackets Fastening kit for steel bar Suitable for all types af steel bars at a flange width "b"...
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Page 10: Installation Instructions ........................................................................................ 8
Inclination equalization LH-Unit Fastening kit for steel bar 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. -
Page 11: Electrical Connection
U1 V1 W1 W2 U2 V2 PE 12 11 U1 V1 W1 W2 U2 V2 PE 12 11 LH-units of different sizes and capacity can be oberated with one switch up to the max. permissible capacity or max. permis- sible current of the switch. -
Page 12: Switches
Switches Single-step switch D1 for single-speed operation of one or several unit heaters. Room thermostat Operation voltage 400 V Control voltage 230 V Max. capacity 3 kW Weight 0,9 kg 3,15A Prot. class IP 54 V1 W1 Part no. 79 40 001 Automatic start-up when winding tempera- ture drops (motor). - Page 13 Switches Five-step switch D 5-... Fan motor with for five-speed operation of one or several thermal cutout unit heaters with complete motor protection with reclosure preventing device. Link acc. to motor type-plate Type D5-1 D5-3 D5-7 D5-12 D5-19 Operation voltage Control voltage Max.
- Page 14 Switches 3-stage switch E3-7T supply cable with reclosing lock-out Fan motor with thermal cutout for 3-speed operation of one or more unit heaters with single-phase A.C. motors and complete motor protection. Operation voltage 230 V Max. capacity Weight 4,5 kg Prot.
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Page 15: Control Devices For Damper Actuators
The automatic relay A1S switches the Position actuator to the position set on the position transmitter transmitter, if the LH-unit is switched off or if the anti-frost thermostat is activated. Switching on the LH-unit, the actuator switches to the position set at the position transmitter. -
Page 16: Thermostats
Thermostats Room thermostat Max. current at 230 V / 50 Hz Heating: 10(5) A; Venting: 5(2) A Thermal feed-back Temperature range 5 - 30 °C Differential ± 0,5 K Protection class IP 30 Part no. 27 34 000 Room thermostat Max. -
Page 17: Control System Wrs
Control System WRS BML ventilation programming • room-dependent temperature control • control by rotary selector with key function module • 4 function keys for frequently used functions (info, temperture, speed adjustment, fresh air proportion) • installation either inside the ventilation control unit or, as remote control, in a wall mounting base •... - Page 18 Control System WRS This configuration is used for heating buildings in conjunction with air heaters. The Ventilation control unit LM1 room temperature is captured by a sensor and the fan, the heating circuit pump and with BML the heat source are switched on or off depending on demand. Description: If the temperature deviation (set room temperature to actual room temperature) is low, the fan is operated in stage 1.
- Page 19 Control System WRS Ventilation control units LM1 and LM2 with BML Description: This configuration is used for heating buildings in conjunction with air heaters. The room temperature is captured by a sensor and the fans, the heating circuit pump, the heating circuit mixing valve and the heat source are switched on or off depending on demand.
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Page 20: Control System Wrs
Control System WRS LM2 Ventilation control unit with This configuration is used for heating buildings in conjunction with air heaters. The Description: room temperature is captured by a sensor, and the fans, the heating circuit pump, the heating circuit mixing valve and the heat source are switched on or off depending on demand. -
Page 21: Actuators
Actuators / Push-button Actuator OPEN-SHUT 230 V / 50 Hz Actuator for automatic opening and clo- Relay A1 sing of the fresh air damper. Controlling only by automatic relay A1. Power consumption 11 VA Rotation direction reversible Torque drive 15 Nm shut open Running time 90 - 150 sec. -
Page 22: Intermediate Terminal Box
Intermediate terminal box 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. -
Page 23: Maintenance
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, remove plug acc. to sketch. When water is evacuated the plug is closed tightly again. -
Page 24: Hydraulic Adaption Of Unit Heaters Within A Group
Hydraulic Adjustment of Unit Heaters operating as a group General instructions The hydraulic adjustment of unit heaters is a precondition for an economic and optimized control within a group. The hydraulic adjustment aims at a correct flow rate through all unit heaters. -
Page 25: Rain Protection Hood And Roof Lead-In Box
Rain protection hood and roof lead-in box Roof lead-in box and rain protection hood are supplied sepa rately. The rain protection hood is provided with a bird screen as standard. As an option a non-return damper may be supplied for the installation into the rain protection hood, on site. - Page 26 Rain protection hood and roof lead-in box Flexible connection A unit heater or mixing box are connected to the internal flange of the roof lead-in box (matching bore holes) via a flexible connection "Q". In this case the roof lead-in box has to be on the roof and the mixing box, filter section or unit heater underneath the roof.
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Page 27: Notes
Notes 3040531_0711... - Page 28 Wolf GmbH · Postfach 1380 · 84048 Mainburg · Tél. 08751/74-0 · Fax 08751/741600 · Internet : www.wolf-heiztechnik.de...
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