SQURBO XBOX. Units S1 - S6 - XB Supply & Extract fans with Heat Recovery Installation and Maintenance. Fresh air intake* Fresh air.

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1 Units S1 - S6 - XB & xtract fans with Recovery Installati and Maintenance The MC Directive 2014/30/U The ow Voltage directive 2014/35/U. Packaged and xtract fans with Recovery The units comprise of an extract and supply fan with associated air filter, a plate heat exchanger and optial supplementary heater (either electric or PHW). The unit is normally supplied with cosmart ctrol for automated operati. Units without ctrols are also available and are identified by the letters C after the unit size. The installer must select and fit suitable ctrol equipment to produce the desired output. This includes the valve, actuator and water circuit needed to ctrol any PHW coil fitted. 1.0 Coding The coding structure is: (e.g. S5 - XB - R) S 1-6-XB (C) - R/ - // Unit Size o Ctrol Opti Right or eft Handing lectric or PHW or o er 1.1 Handling Always handle the units carefully to avoid damage and distorti. Care must be taken to ensure that any slings used for hoisting or lifting equipment employed does not damage the casing or the ctrol module compents. 1.2 Unit Installati For systems which include supply fans with heating other than where the BMS (0-1) has ctrol, the appropriate user ctrol is required. The fan must be fitted indoors, a secure surface, away from sources of water spray or steam generati. The fan is installed by using drop-rods and bearers ( figure 1). Csiderati must be given when supporting the unit that access is still available for maintenance purposes and removal of filters. ote that the unit is ly suitable for horiztal mounting. 1.3 Access for Maintenance Compent locati (fig.2) A xtract Fan B Cdensate tray** C er D Filter* Fan and xchanger F Ctrols (if fitted) G xtract Filter * H Cdensate pipe A B * regular maintenance required. ** regular maintenance may be required (dependant installed cditis). Other compents are unlikely to need attenti a regular basis. Access space around the unit is recommended as being a minimum of 600mm. (see Approved Document F sectis 2.6, 2.7). Figure 2. Plan view: Maintenance access is from e side ly (Ctrol box side). Access to extract fan, PHW cnecti and cdensate drain is the opposite side. Discharge Right Hand C + uaire recommend that attenuators have breakout protecti and that flexible cnectors are fitted at inlet attenuator entry and outlet attenuator exit. The installati, including all external services and ctrols should be installed in accordance with the appropriate authority and must cform to all governing regulatis e.g. CDM, CIBS, I, and in strict accordance with the applicable Building Regulatis. Fresh air intake* Fresh air intake* D F G xtract xtract Figure 1. Typical installati of the unit. eft Hand Discharge + A B C ote: nsure the access panels are not obstructed. *nsure the fresh air intake is located well away from the exhaust of this or any other system. uaire imited Western Industrial state Caerphilly United Kingdom CF83 1A T: F: : info@nuaire.co.uk W: eaflet umber

2 1.4 Unit Dimensis (mm) Figure 3. Side view C D A nd view Fan code A B C D Weight kg S1-XB S2-S5-XB S6-XB B 1.5 Installing the Water Circuit It is recommended that a strainer and isolating valves are fitted () for ease of maintenance. (See figure 4). Please note that ctrol valve and actuator are ly fitted to units with cosmart ctrol. Figure 4. PHW Coil 4 port valve 15mm dia. copper pipes Installer 1.6 Cdensate Cnecti Return Flow Strainer Isolating valves Installer Where cooling coils and heat exchangers are in use cdensate drainage points are provided. It is the installers respsibility to ensure cnecti to the appropriate trap and drainage. If the cdensate tray is located at the inlet side of the fan (i.e. under negative pressure) then calculate the values of A & B as shown below. (and see fig. 5). A = Fan inlet pressure (mm H2O) +25mm (minimum). Allow 100mm for these units if pressure is unknown. B = A/2. (minimum). (ote: 10Pa = 1mm H2O). If the cdensate tray is located at the outlet side of the fan (i.e. under positive pressure) then calculate the values of A & B as shown below. A = 25mm (minimum). B = Fan outlet pressure (mm H2O) + 25mm (minimum). Allow 100mm for these units if pressure is unknown. Figure 5. Cdensate Trap. From cdensate drain pan Hand tight plug A Hand tight plug B Cnect to ventilated downpipe to drain Isolati - Before commencing work make sure that the unit, switched live and uaire ctrol are electrically isolated from the mains supply. 2.0 Wiring (Units with cosmart Ctrol) The electrical wiring must be carried out by competent perss, in accordance with good industry practice and should cform to all governing and statutory bodies i.e. I, CIBS, COHS etc. Cnectis a) Ctrol Cnectis et - the 4 IDC plug-in cnectors are provided for the cnecti of compatible sensors, manual ctrols and for linking the fans together under a comm ctrol. If more than 4 are required, the juncti box (product code S-JB) should be used (see data cable installati). Switch ive (S) terminal - A signal of a.c. will activate the fan (required at both PCB). ote that a signal from an isolating transformer will produce an unpredictable result and is not recommended. b) OP Hz 1A max supply to open the damper C Hz 1A max supply to close the damper - eutral supply to damper RT - 23 ac return signal from the damper limit switch indicates the damper has reached its operating positi. If the return signal is not present, the fan will wait for 1 minute before starting. ote: If a damper is not fitted, cnect a link wire from OP to RT. This will cancel the delay. c) Volt Free Relay Ctacts ote that the volt free ctacts are not fused. If these are used to power any external equipment, the installer must provide adequate fusing or other protectis. These ctacts are rated at 5A resistive, 0.5A inductive. - These ctacts are closed when the fan is running. - o fault = the ctacts are closed. = the ctacts are opened. demand - ctacts closed when heating is selected. ctinued page eaflet umber

3 d) Data Cable Installati A 4-core SV data cable is used to cnect. Do not run data cable in the same cduit as the mains cables and ensure there is a 50mm separati between the data cable and other cables. The maximum cable run between any two is 300m when it is installed in accordance with the instructis. Please note that the total data cable length used in any system must be less than 1000m. Keep the number of cable joints to a minimum to ensure the best data transmissi efficiency between. e) Maximum umber of Devices The maximum number of (including fans) that can be cnected together via the cable is 32, irrespective of their functis. f) Other ow Voltage Cables Follow the basic principle (as d). Keep the cable run as short as possible, less than 50 metres. Use screened cable if cable length is more than 2m. Wiring - Unit sizes S1-6-XB with cosmart fan ly ctrol. Figure 6. Wiring - Unit sizes S2-6-XB with cosmart fan and lectric er ctrol. Figure S-CO2 BMS Cnecti Input cosmart Min xtract Trickle Max S run Test Pwr T for cosmart 0-1 S-CO2 BMS Cnecti Input cosmart Min xtract Trickle Max S run Test Pwr T for cosmart ink wire see note* Demand ink wire see note* Demand S C RT S C RT 23-50Hz ocal isolator () All inter- between circuit boards, blowers and sensors are made at the factory. This diagram ly shows the essential field wiring points for clarity. *Remove link wire if switched live signal, an enabler or BMS signal is cnected Hz ocal isolator () All inter- between circuit boards, blowers and sensors are made at the factory. This diagram ly shows the essential field wiring points for clarity. *Remove link wire if switched live signal, an enabler or BMS signal is cnected. Demand Demand S C RT S C RT Demand ink wire see note* Demand ink wire see note* T for cosmart Trickle Test Min Max S run cosmart Pwr BMS Input 0-1 S-CO2 Cnecti T for cosmart Trickle Test Min Max S run cosmart Pwr BMS Input 0-1 S-CO2 Cnecti o C er Temperature Setting ctinued page eaflet umber

4 Wiring - for units with cosmart Ctrol ct. Wiring - Unit sizes S1-6-XB with cosmart fan and PHW Coil ctrol. Figure S-CO2 BMS Cnecti Input cosmart Min xtract Trickle Max S run Test Pwr T for cosmart ink wire see note* S C RT Demand 23-50Hz ocal isolator () All inter- between circuit boards, blowers and sensors are made at the factory. This diagram ly shows the essential field wiring points for clarity. *Remove link wire if switched live signal, an enabler or BMS signal is cnected. Demand S C RT Demand ink wire see note* T for cosmart Trickle Test Min Max S run cosmart Pwr BMS Input 0-1 S-CO2 Cnecti Inlet Outlet Sensor Sensor Cool DX Sensor Coil Cool Demand Alarm DX-1 DX o C er Temperature Setting lectrical Details Fans without Fans with lectric er lectric er Unit flc Unit flc Code (amps) Code (amps) S1-XB-*/ 1.28 /A /A S2-XB-*/ 1.7 S2-XB-* 22 S3-XB-*/ 1.9 S3-XB-* 22 S4-XB-*/ 2.8 S4-XB-* 23 S5-XB-*/ 3.3 S5-XB-* 24 S6-XB-*/ 6.0 S6-XB-* eaflet umber

5 3.0 Setting to Work Using the Test Butt The test butt allows the individual blowers within the unit to be checked for its operati. If the fan is running already, press the butt ce to stop the fan, press again to switch the fan. ote that the fan will return to normal operati after 30 secds. ote: this unit ctains two fan units and two ctrols. Generally, it is recommended that the two fans are operated together (factory default arrangement), but the fans are capable of independent operati if required. D Indicati PWR GR: Power & OK, D when fan is not running. GR: is running, RD: faulty. GR: is running, RD: faulty. * GR: selected RD: faulty. * ot applicable. See note. D when a fault is present unit. * ot applicable. See note. D when the ctroller is transmitting data. D when the ctroller is receiving data. * ote that the ctrol panel is comm to all the cosmart products and will have indicators for functis that are not available in this particular fan. However these indicators will not be illuminated. BMS Input s The system s respse to a 0-1 dc BMS signal is given in the following table. ote the BMS signal will override any sensors and user ctrol cnected in the system. The voltage tolerance is +/_ 125mV and is measured at the fans terminal. Ventilati mode mode* mode* ocal ctrol OFF / trickle Speed Speed Speed Speed Speed Speed Speed Speed Speed Speed * Only available relevant unit Settings Figure 9. Cnector MI MAX S TRICK TST cosmart = Minimum speed adjustment = Maximum speed adjustment = Switched ive -On Timer adjustment = Selects trickle running: 0 = off, 1 = selected = Test butt Setting the maximum air flow ii) nsure the power supply is switched off and that a link wire is cnected from the supply to the S terminal. Unplug all items cnected to the et cnectors. ii) Switch the power supply. iii) Wait for the fan to complete its self-test operati. Measure the airflow using standard commissiing instruments at a suitable point in the ductwork. If adjustment is required, rotate the pot marked MAX to obtain the desired airflow. Setting the minimum trickle airflow (nominal 40%) i) Repeat the same procedure as for maximum airflow above but without the link wire between supply and S terminal. nsure the trickle switch is in the O positi. Adjustment must be made the pot marked Min. ii) ote that the minimum setting (nominally 40%) must be below the maximum setting, otherwise minimum setting will be automatically set to be the same as the maximum. Setting the overrun time A switched live of at terminal S will activate the fan. When the switched live signal is removed the fan will overrun for period set by the dial S run - adjust the desired overrun time by rotating clockwise. Setting the trickle ventilati facility Slide the trickle switch 0 = Off, 1 = On. With trickle and power to unit the fan will run at minimum speed until the switch live signal activates it to boost. Setting the air off temperature The adjustment knob is located in the ctrol pack and must be set to the desired air off temperature. D indicators Min Max S run Trickle Test Pwr eaflet umber

6 4.0 Wiring - for units supplied without cosmart Ctrol The wiring illustratis below are for the fans, bypass damper and electric heater for units without ctrol. All wiring is terminated in juncti boxes fitted to the specified side of the unit. It is the installer s respsibility to select and fit the appropriate ctrol equipment to produce the desired output. ote that any heating/cooling coils fitted are supplied without ctrol valve and actuator. lectrical Details Fan motor lectric heater ratings ratings (if fitted) Unit size flc sc kw flc S1-XB 2x 0.65A 2x 0.65A /A /A S2-XB 2x 0.75A 2x 3A 4.5kW 18.7A S3-XB 2x 0.75A 2x 3A 4.5kW 18.7A S4-XB 2x 1.2A 2x 4.8A 4.5kW 18.7A S5-XB 2x 1.2A 2x 4.8A 4.5kW 18.7A S6-XB 2x 3A 2x 3A 6.0kW 25A Bypass damper rated at 3W, 13mA for all unit sizes. (Unit size S1-XB) Fan wiring. Two per unit and e per blower. Figure 10. (Unit size S2-5-XB) Fan wiring. Two per unit and e per blower. Figure 11. (Unit size S6-XB) Fan wiring. Two per unit and e per blower. Figure 12. +V SIG Fuse 3A (T) +V SIG TK TK 1-1 Speed ctrol signal <1V = fan off Alternatively cnect link from +V to SIG for max speed 23-50Hz ARTH UTRA IV 1-1 (Unit sizes S2-6-XB) with electric heater bypass damper and electric heater wiring. (Unit sizes S1-6-XB) Fan ly or with PHW coil bypass damper wiring. Bypass Damper Power to open Auto Close lectric er Thermal Overload Cnecti to lectric lements Motor Thermal Overload Bypass Damper Power to open Auto Close Speed ctrol signal <1V = fan off Alternatively cnect link from +V to SIG for max speed 23-50Hz ote: Do not wire the power supply to motor via motor thermal overload as these are ly closed after the motor is energised. Thermal overload ctact rating is 2A max resistive Hz Figure 13. Figure Hz 23-50Hz 23-50Hz eaflet umber

7 5.0 Maintenance The first maintenance should be carried out three mths after commissiing and thereafter at twelve mthly intervals. These intervals may need to be shortened if the unit is operating in adverse envirmental cditis, or in heavily polluted air. ubricati Motors are fitted with sealed for life bearings and do not require any lubricati. General Cleaning and Inspecti Clean and inspect the exterior of the fan unit and associated ctrols etc. Remove the access panel from the fan unit, inspect and, if necessary, clean the fan and motor assemblies, heat exchanger and cdensate tray, and the interior of the case. If the unit is heavily soiled it may be more cvenient to remove the various assemblies. Check all parts for security and that the impeller rotates freely, taking care not to disturb the balance. nsure all ctrol compents are secure and clean, refit all access doors. Do not use solvents or corrosive agents for cleaning. Filter care/replacement The filters inside the unit will require changing a regular basis. The frequency will depend the site cditis. ote: It is important to allow sufficient time for the heater battery (where fitted) to cool down before beginning work. Remove the access panel and withdraw, remove and replace the filters. 6.0 Replacement of Parts Should any compent need replacing uaire keep extensive stocks for quick delivery. nsure that the unit is electrically isolated, before carrying out any work. When ordering spare parts, please quote the serial number of the unit and the ARC number of the purchase if possible. (This informati will be available the fan label). 7.0 Warranty Units fitted with cosmart ctrol carry a 5 year warranty. Units without ctrols carry a 3 year warranty. The warranty starts from the day of delivery and includes parts and labour for the first year. The remaining period covers replacement parts ly. This warranty is void if the equipment is modified without authorisati, is incorrectly applied, misused, disassembled, or not installed, commissied and maintained in accordance with the details ctained in this manual and general good practice. The product warranty applies to the UK mainland and in accordance with Clause 14 of our Cditis of Sale. Customers purchasing from outside of the UK should ctact uaire Internatial Sales office for further details. 8.0 After Sales nquiries For technical assistance or further product informati, including spare parts and replacement compents, please ctact the After Sales Department. Telephe Cleaning Ctrol Box and Sensors (if fitted) Remove covers and carefully clean out interiors as necessary. Check for damage and security of compents. Refit covers. Technical or commercial csideratis may, from time to time, make it necessary to alter the design, performance and dimensis of equipment and the right is reserved to make such changes without prior notice eaflet umber

8 DCARATIO OF ICORPORATIO AD IFORMATIO FOR SAF ISTAATIO, OPRATIO AD MAITAC We declare that the machinery named below is intended to be assembled with other compents to cstitute a system of machinery. All parts except for moving parts requiring the correct installati of safety guards comply with the essential requirements of the Machinery Directive. The machinery shall not be put into service until the system has been declared to be in cformity with the provisis of the C Machinery Directive. Designati of machinery: & xtract fans with recovery Machinery Types: S1 - S6 XB Relevant C Council Directives: 2006/42/C (Machinery Directive) Applied Harmised Standards: BS ISO , BS ISO , , BS ISO 9001, BS ISO Applied atial Standards: BS848 Parts 1, 2.2 and 5 ote: All standards used were current and valid at the date of signature. Signature of manufacture representatives: ame: Positi: Date: 1) C. Biggs Technical Director ) A. Jes Manufacturing Director IFORMATIO FOR SAF ISTAATIO, OPRATIO AD MAITAC OF UAIR VTIATIO QUIPMT To comply with C Council Directives 98/37/C Machinery Directive and 2014/30/U (MC). To be read in cjuncti with the relevant Product Documentati (see 2.1) 1.0 GRA 1.1 The equipment referred to in this Declarati of Incorporati is supplied by uaire to be assembled into a ventilati system which may or may not include additial compents. The entire system must be csidered for safety purposes and it is the respsibility of the installer to ensure that all of the equipment is installed in compliance with the manufacturers recommendatis and with due regard to current legislati and codes of practice. 2.0 IFORMATIO SUPPID WITH TH QUIPMT 2.1 ach item of equipment is supplied with a set of documentati which provides the informati required for the safe installati and maintenance of the equipment. This may be in the form of a Data sheet and/or Installati and Maintenance instructi. 2.2 ach unit has a rating plate attached to its outer casing. The rating plate provides essential data relating to the equipment such as serial number, unit code and electrical data. Any further data that may be required will be found in the documentati. If any item is unclear or more informati is required, ctact uaire. 2.3 Where warning labels or notices are attached to the unit the instructis given must be adhered to. 3.0 TRASPORTATIO, HADIG AD STORAG 3.1 Care must be taken at all times to prevent damage to the equipment. ote that shock to the unit may result in the balance of the impeller being affected. 3.2 When handling the equipment, care should be taken with corners and edges and that the weight distributi within the unit is csidered. ifting gear such as slings or ropes must be arranged so as not to bear the casing. 3.3 quipment stored site prior to installati should be protected from the weather and steps taken to prevent ingress of ctaminants. 4.0 OPRATIOA IMITS 4.1 It is important that the specified operatial limits for the equipment are adhered to e.g. operatial air temperature, air borne ctaminants and unit orientati. 4.2 Where installati accessories are supplied with the specified equipment eg. wall mounting brackets. They are to be used to support the equipment ly. Other system compents must have separate provisi for support. 4.3 Flanges and cnecti spigots are provided for the purpose of joining to duct work systems. They must not be used to support the ductwork. 5.0 ISTAATIO RQUIRMTS In additi to the particular requirements given for the individual product, the following general requirements should be noted. 5.1 Where access to any part of equipment which moves, or can become electrically live are not prevented by the equipment panels or by fixed installati detail (eg ducting), then guarding to the appropriate standard must be fitted. 5.2 The electrical installati of the equipment must comply with the requirements of the relevant local electrical safety regulatis. 5.3 For MC all ctrol and sensor cables should not be placed within 50mm or the same metal cable tray as 23 switched live, lighting or power cables and any cables not intended for use with this product. 6.0 COMMISSIOIG RQUIRMTS 6.1 General pre-commissiing checks relevant to safe operati csist of the following: nsure that no foreign bodies are present within the fan or casing. Check electrical safety. e.g. Insulati and earthing. Check guarding of system. Check operati of s/ctrols. Check fastenings for security. 6.2 Other commissiing requirements are given in the relevant product documentati. 7.0 OPRATIOA RQUIRMTS 7.1 quipment access panels must be in place at all times during operati of the unit, and must be secured with the original fastenings. 7.2 If failure of the equipment occurs or is suspected then it should be taken out of service until a competent pers can effect repair or examinati. (ote that certain ranges of equipment are designed to detect and compensate for fan failure). 8.0 MAITAC RQUIRMTS 8.1 Specific maintenance requirements are given in the relevant product documentati. 8.2 It is important that the correct tools are used for the various tasks required. 8.3 If the access panels are to be removed for any reas the electrical supply to the unit must be isolated. 8.4 A minium period of two minutes should be allowed after electrical discnecti before access panels are removed. This will allow the impeller to come to rest. B: Care should still be taken however since airflow generated at some other point in the system can cause the impeller to windmill even when power is not present. 8.5 Care should be taken when removing and storing access panels in windy cditis eaflet umber