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Installation and maintenance instructions for contractors
CRL Comfort ventilation unit with
thermal wheel heat exchanger
(Translation of the original)
WOLF GMBH / POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0. 87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu
GB
Document no.: 3064361_201710
Subject to technical modifications
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Table of Contents
Related Manuals for Wolf CRL-iD-1300
Summary of Contents for Wolf CRL-iD-1300
- Page 1 CRL Comfort ventilation unit with thermal wheel heat exchanger (Translation of the original) WOLF GMBH / POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0. 87 51 74- 0 / FAX +49.0.87 51 74- 16 00 / www.WOLF.eu Document no.: 3064361_201710 Subject to technical modifications...
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Page 2: Table Of Contents
Table of contents Table of contents 1. General / safety information ..............3 2. Standards, regulations / disposal ............. 5 3. CRL-iD unit layout ..................6 4. CRL-iD appliance versions ............... 8 5. CRL-iH unit layout ..................9 6. CRL-iH appliance versions ..............11 7. CRL-iDH unit layout ................12 8. -
Page 3: General / Safety Information
Only replace faulty components and equipment with original WOLF spare parts. The unit may only be used for handling air. This air must not contain... - Page 4 Intended use WOLF CRL ventilation units are designed to heat and filter normal air. Max. air intake temperature: +40 °C. The use of these units in wet rooms or rooms with explosive atmospheres is not permissible. Handling very dusty or aggressive media is not permissible.
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Page 5: Standards, Regulations / Disposal
2. Standards, regulations / disposal Standards and regulations - Machinery Directive 2006/42/EC - Low Voltage Directive 2014/35/EC - EMC Directive 2014/30/EC - ErP Directive 2009/125/EC - DIN EN ISO 12100 Safety of machinery; general design principles - DIN EN ISO 13857 Safety of machinery; safety distances - DIN EN 349 Safety of machinery;... -
Page 6: Crl-Id Unit Layout
3. CRL-iD unit layout CRL-iD C omfort thermal wheel heat exchanger ventilation unit for internal installation with vertical/horizontal duct connection Outdoor air damper with servomotor Differential pressure switch for filter monitoring Filter pre-dryer (accessory) Electrical booster heater bank available for CRL-1300/-2500/-3500 (accessories) Differential pressure switch for filter monitoring EC fan, supply air EC fan, extract air Adjustable feet Exhaust air flap with actuator Quick heater damper with actuator optional for... - Page 7 3. CRL-iD unit layout Total TWHE with rapid heat- up damper 1 outdoor air 3 supply air 2 exhaust air 4 extract air Type CRL-iD-1300 CRL-iD-2500 CRL-iD-3500 Unit components one-piece one-piece 3 parts Length L 1525 / 1525* 1626 / 1626* 1626 / 1830*...
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Page 8: Crl-Id Appliance Versions
4. CRL-iD appliance versions Access side Access side in supply air direction, left in supply air direction, right * For CRL-1300/-2500/-3500, these versions are available with a rapid heat-up damper. 3064361_201710... -
Page 9: Crl-Ih Unit Layout
5. CRL-iH unit layout CRL-iH C omfort thermal wheel heat exchanger ventilation unit for internal installation with horizontal duct connection Outdoor air damper with servomotor Differential pressure switch for filter monitoring Filter pre-dryer (accessory) Electrical booster heater bank available for CRL-1300/-2500/-3500 (accessories) Differential pressure switch for filter monitoring EC fan, supply air EC fan, extract air Adjustable feet Exhaust air flap with actuator Quick heater damper with actuator optional for... - Page 10 5. CRL-iH unit layout Total TWHE with rapid heat- up damper 1 outdoor air 3 supply air 2 exhaust air 4 extract air Type CRL-iH-1300 CRL-iH-2500 CRL-iH-3500 Unit components one-piece one-piece 3 parts Length L 1525 / 1525* 1626 / 1626* 1626 / 1830* Length L1 Length L2 (rotor part) 610 / 814*...
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Page 11: Crl-Ih Appliance Versions
6. CRL-iH appliance versions Access side Access side in supply air direction, left in supply air direction, right * For CRL-1300/-2500/-3500, these versions are available with a rapid heat-up damper. 3064361_201710... -
Page 12: Crl-Idh Unit Layout
7. CRL-iDH unit layout CRL-iDH C omfort thermal wheel heat exchanger ventilation unit, energy saving and convenient ventilation with vertical/horizontal duct connection Outdoor air damper with servomotor Differential pressure switch for filter monitoring Filter pre-dryer (accessory) Elektro-Nachheizregister erhältlich für CRL- 1300 /-2500 /-3500 (Zubehör) Differential pressure switch for filter monitoring EC fan, supply air EC fan, extract air Adjustable feet Exhaust air flap with actuator Quick heater damper with actuator optional for CRL-... - Page 13 7. CRL-iDH unit layout Total TWHE with rapid heat- 1 outdoor air 3 supply air up damper 2 exhaust air 4 extract air Type CRL-iDH-1300 CRL-iDH-2500 CRL-iDH-3500 Unit components one-piece one-piece 3 parts Length L 1525 / 1525* 1626 / 1626 1626 / 1830* Length L1 Length L2 (rotor part) 610 / 814*...
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Page 14: Crl-Idh Appliance Versions
8. CRL-iDH appliance versions Access side Access side in supply air direction, left in supply air direction, right Other versions available, see WOLF sizing program. * For CRL-1300/-2500/-3500, these versions are available with a rapid heat-up damper. 3064361_201710... -
Page 15: Crl-A Unit Layout
9. CRL-A unit layout CRL-A C omfort thermal wheel heat exchanger ventilation unit for external installation (weatherproof) with horizontal duct connection Outdoor air damper with servomotor 11 Elektro-Nachheizregister erhältlich für CRL-1300/-2500/-3500 (Zubehör) Filter pre-dryer (accessory) 12 EC fan, supply air Differential pressure switch for filter monitoring 13 Base frame EC fan, extract air 14 Klappe Schnellaufheizung mit Stellmotor optional für Exhaust air flap with actuator CRL-1300/-2500/-3500 Isolator... - Page 16 9. CRL-A unit layout 1 outdoor air 2 exhaust air 3 supply air 4 extract air Total Type CRL-A-1300 CRL-A-2500 CRL-A-3500 Unit components one-piece one-piece 3 parts Length L 1525 / 1525* 1626 / 1626* 1626 / 1830* Length L1 Length L2 (rotor part) 610 / 814* Depth T 1118...
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Page 17: Crl-A Appliance Versions
10. CRL-A appliance versions Access side Access side in supply air direction, left in supply air direction, right * For CRL-1300/-2500/-3500, these versions are available with a rapid heat-up damper. 3064361_201710... -
Page 18: Delivery / Handling
If there is any damage or even a suspicion of damage, the recipient must indicate this on the consignment note and have it countersigned by the haulier. The recipient of the goods must notify WOLF of the relevant facts without delay. - Page 19 11. Delivery / handling General handling information Units are supplied fully assembled and fully wired. Only transport units in their installation position. Never tilt the unit when transporting it through doorways or in narrow stairwells (lifts). Failure to observe these instructions can damage internal components irreparably.
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Page 20: Unit Splitting For Handling Purposes
12. Unit splitting for handling purposes Dismantling of the internal devices Undo the unit connector bolts with an SW13 spanner to dismantle the unit. CRL-3500/-4800/-6200/-9000 Remove filters before dismantling in order to reach the rear unit connectors. It may be necessary to remove the dampers in order to gain better access to the rear unit connectors in this area. - Page 21 12. Unit splitting for handling purposes 3064361_201710...
- Page 22 12. Unit splitting for handling purposes 3064361_201710...
- Page 23 12. Unit splitting for handling purposes 3064361_201710...
- Page 24 12. Unit splitting for handling purposes 3064361_201710...
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Page 25: Installation Information For External Units
The WOLF base frame and its integration into the roof membrane must be insulated on site. In the case of elevated positioning (CRL on on-site framework), the CRL must be secured against wind load. -
Page 26: Positioning
14. Positioning Minimum clearance between outdoor air intake and exhaust air aperture to prevent an "air short circuit" (DIN 13779) Exhaust Supply air Outdoor Extract Outdoor Exhaust Exhaust Extract Extract Outdoor Supply Supply View of air intake function: CRL-iD Supply air Extract air Exhaust Outdoor air View of air intake function: CRL-iH Exhaust Outdoor air Supply air Extract air 3064361_201710... - Page 27 14. Positioning Siting the CRL The installation site must be level and sufficiently load-bearing (at least 450 kg). internal unit Level the unit horizontally (align using the adjustable feet). The installation site must be able to bear the load of the ventilation unit without vibrations on a long term basis.
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Page 28: Electrical Connection
Regularly check the perfect function of all electrical equipment. Observe the specified electrical fuse/MCB protection ratings. We accept no liability for any damage or loss resulting from technical modifications to WOLF control units. Motor data CRL-1300 CRL-2500 CRL-3500 CRL-4800 CRL-6200 CRL-9000... -
Page 29: Commissioning
1000 V DIN VDE 0105-100 Operation of electrical systems Only original WOLF accessories may be used (electric coils, servomotors, etc.), otherwise WOLF cannot accept any liability. In addition, ÖVE regulations and the local building code apply to Austria. - Page 30 - Actuator, heating / cooling - Heating circuit pump / cooling circuit pump - As well as all other system-specific functions The WOLF warranty will be void if the function test is not carried out correctly. Fans Use tools to tightly seal the doors before commissioning (unit tightness), otherwise there is a risk of motor overload.
- Page 31 16. Commissioning Electric reheating coil To prevent the electric heating coil from switching off, never operate the CRL (accessory) below its minimum air flow rate. Follow the relevant safety regulations for electric heating coils. The electric heating coil must be protected from moisture and water. Type 1300 2500...
- Page 32 16. Commissioning Heat recovery function A rotating accumulator mass (rotor material corrosion-resistant aluminium alloy, with thermal wheel heat wound in corrugated and smooth layers) absorbs heat from the extract air flow exchanger and transfers it to the outdoor air. The rotor mass is sealed by a circumferential labyrinth seal.
- Page 33 16. Commissioning Flow rate calculation The flow rate is calculated using the effective pressure method. This involves comparing the static pressure upstream of the inlet nozzle with the static pressure in the inlet nozzle. The flow rate can be calculated from the effective pressure Δp (differential pressure of the two static pressures) using the following equation.
- Page 34 16. Commissioning CRL-3500 effective pressure The fans used for the CRL-3500 ave a k value of 121. 1000 V = 121 x √Dp 1500 2000 2500 3000 3500 Flow rate [m³/h] Δp = effective pressure Δp [Pa] (symbolic representation) [m³/h] 1700 1900 2100 2300 2500 2700 2900 3100 3300 3500 CRL-4800 effective pressure The fans used for the CRL-4800 have a k value of 148.
- Page 35 16. Commissioning CRL-6200 effective pressure The fans used for the CRL-6200 have a k value of 188. 1200 V = 188 x √Dp 1000 3000 3500 4000 4500 5000 5500 6000 Flow rate [m³/h] Δp = effective pressure Δp [Pa] 290 985 1088 (symbolic representation) [m³/h] 3200 3500 3800 4100 4400 4700 5000 5300 5600 5900 6200 CRL-9000 effective pressure...
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Page 36: Maintenance Shutdown
17. Maintenance shutdown Shutdown Before starting any maintenance work, switch OFF the isolator and safeguard against unauthorised reconnection. If the isolator is switched back on unintentionally, maintenance staff or others in the vicinity could be at risk from rotating parts. Wait for the fans to come to a complete standstill before opening the doors (approx. -
Page 37: Hygiene Checklist
Heating coil: Check for contamination, Clean and repair damage, corrosion and tightness Check condensate pan for Clean and repair contamination, corrosion, damage and tightness Check the function of the drain and Clean and repair trap Repairs Only qualified personnel may remove faults or repair damage. Only replace faulty components with original WOLF spare parts. 3064361_201710... -
Page 38: Maintenance
19. Maintenance Fan motor unit Motor and bearing are maintenance-free. If necessary, clean the impeller with a soapy solution. Check that the test lead is seated firmly at the test connector on the inlet nozzle. Please Loose seating can result in faulty measurements. note Electrical equipment - Regularly check the electrical equipment of the unit... - Page 39 19. Maintenance Electric heating coil (accessory) Check and clean at regular intervals. Cleaning the electric coils: - Vacuum, taking care not to bend the heating coils - Blast with compressed air, max. 1 bar If the cleaning pressure is too high, there is a risk of irreparable mechanical Please damage to the electric coils.
- Page 40 19. Maintenance Servomotors on the dampers The motors are maintenance-free. At regular intervals, check that the connection from the servomotor to the damper drive is firmly seated. Condensate pan Regularly check the condensate pan for possible soiling and clean if required (see checklist). Trap Regularly check the DN 50 trap (accessory) for possible soiling and clean if required.
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Page 41: Notes
20 Notes 3064361_201710... - Page 42 20 Notes 3064361_201710...
- Page 43 20 Notes 3064361_201710...
- Page 44 WOLF GMBH POSTFACH 1380 / D-84048 MAINBURG / TEL. +49.0. 87 51 74- 0 / FAX +49.0.87 51 74- 16 00 www.WOLF.eu Document no.: 3064361_201710 Subject to technical modifications...