Related Manuals for Zehnder Rittling ComfoAir Compact CA155WM
Summary of Contents for Zehnder Rittling ComfoAir Compact CA155WM
- Page 1 ComfoAir Compact CA155WM / CA155CM / CA185WM Mechanical Ventilation with Heat Recovery Installation Instructions CA155WM CA155CM CA185WM...
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Page 2: Table Of Contents
Contents Page General Description / Physical Specifications ........3 - 4 Installation Instructions ................General Preparation..................Positioning ....................Configuration....................Mounting ..................... Access for Maintenance................Condensate Drain ..................Ducting Guidelines ..................Electrical ..................... Wiring The Unit ................... Connecting to the BMS ................On-Site Commissioning ................ -
Page 3: General Description / Physical Specifications
1.0 General Description / Physical Specifications Overview The ComfoAir CA155WM / CA155CM / CA185WM is a ventilation system designed to provide improved 1.1.1 indoor air quality in dwellings. As a whole house system, the unit continuously extracts air from the non-habitable rooms and supplies fresh, filtered air to habitable rooms. Heat that is recovered from the air drawn from the bathrooms and kitchen is passed through a heat exchanger and the heat that is recovered is transferred, to temper the supply air in habitable rooms to provide a comfortable indoor environment. A boost speed facility is provided to increase the ventilation rate, e.g. when cooking or showering, providing a 1.1.2 comfortable indoor environment. A ZGS2 Switch Live boost switch can be used to provide this operation (See Section 2.8.5 Electrical). Ancillary Items Required 1.1.3 ComfoAir CA155WM / CA155CM ComfoAir CA185WM 125mm Ducting (rectangular ducting can be used, 150mm Ducting (rectangular ducting can be used,... - Page 4 Physical Specifications Vireo HR155WM side Vireo HR155WM front ComfoAir CA155WM 1.2.1 Front View Side View Vireo HR155CM front ComfoAir CA155CM 1.2.2 Vireo HR155CM side 733.5 Front View Side View Vireo HR185WM front Vireo HR185WM side ComfoAir CA185WM 1.2.3 Front View Side View...
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Page 5: Installation Instructions
2.0 Installation Instructions General Preparation The ComfoAir CA155WM / CA155CM unit is supplied with 4 x 125mmØ spigots. 2.1.1 • 125mm ducting with connectors can be used (see Ancillary Section page 3) to provide performance levels required for compliance with local Building Regulations. The ComfoAir CA185WM unit is supplied with 4 x 150mmØ spigots. 2.1.2 • 150mm ducting with connectors can be used (see Ancillary Section page 3) to provide performance levels required for compliance with local Building Regulations. Installation of the unit should be in accordance with the current editions of local Building Regulations and IEE 2.1.3 or local Wiring Regulations. The design, material specification and installation must only be carried out by "competent persons". Electrical 2.1.4 installation must be carried out by a qualified Electrician. IMPORTANT NOTE: Gases from fuel-burning equipment must not be drawn 2.1.5 into any living areas. -
Page 6: Configuration
Configuration Note: To change the handing of the unit, follow the simple steps within the Commissioning Wizard (See Section 3.0). Automatically done for you via software. ComfoAir CA155WM 2.3.1 INTAKE SUPPLY EXTRACT EXHAUST EXHAUST EXTRACT SUPPLY INTAKE Right Hand (factory setting) Left Hand Right Hand (factory setting) Left Hand ComfoAir CA155CM 2.3.2 INTAKE EXTRACT EXTRACT INTAKE EXHAUST SUPPLY SUPPLY EXHAUST Right Hand (factory setting) Right Hand (factory setting) -
Page 7: Mounting
Mounting The ComfoAir CA155WM / CA185WM unit is supplied with one wall fixing bracket. The bracket is a long strip 2.4.1 and has two adjustable fixing points located at the end of the bracket. Screws and fixings not supplied. Proceed to align the wall bracket taking into account the available wall space to mount the unit, ensuring that 2.4.2 the wall can support 20kg (ComfoAir CA155WM) and 30kg (ComfoAir CA185WM). Use a spirit level to assist mounting and levelling the bracket. Securely fix bracket to wall using 2.4.3 suitable fixings.e ‘V’ slots located top and bottom of bracket to mar The unit fixes to the wall bracket by slotting the bracket attached to the back of the unit and hooking 2.4.4 into place. Fixing Bracket Note: • Fixing Bracket height will be critical in kitchen cupboard. • There should be no movement once correctly located and the filters should be accessible from easily removing the panels on the front of the unit. - Page 8 The unit fixes to the ceiling bracket by slotting the bracket attached to the back of the unit and sliding into 2.4.7 place. First ensure connection is achieved on the “securely” fixed bracket (See Figure 2) and push unit up to ceiling, slide “loosely” fixed bracket to connect with the bracket on the back of the unit (See Figure Securely locate brackets together Figure 2 Figure 3 Tighten loose screws until the unit is securely fitted (See Figure 4), add an additional two screws to the 2.4.8 outside slots. Screw points for both brackets are shown in Figure Figure 4 Figure 5 Note: • There should be no movement once correctly located and the filters should be accessible from easily removing the panels on the front of the unit (See Section 4.1.9, Homeowner Guide).
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Page 9: Access For Maintenance
Access for Maintenance HR155WM Footprint of ComfoAir CA155WM 2.5.1 500mm Top View HR155CM Footprint of ComfoAir CA155CM 2.5.2 500mm Top View Footprint of ComfoAir CA185WM 2.5.3 HR185WM 600mm Top View... -
Page 10: Condensate Drain
Condensate Drain It is important that any condensate MUST be drained away. 2.6.1 • The ComfoAir CA155WM / CA185WM unit is provided with a condensate drain located at the base of the unit underneath (See Figures 6-10). • The ComfoAir CA155CM unit is provided with a condensate drain located at the side of the unit and can be rotated for ease of connection. (See Figures 11-13) The drain plug allows a condensate drain hose (21.5mm diameter) to be push connected and solvent welded/sealed. Please ensure a water tight seal is achieved. The drain must have a continuous minimum fall of 6mm per 1m run and can either be chased into the wall or 2.6.2 run downwards from the unit into the nearest waste water network. Ensure that steps are taken to minimise the risk of mechanical damage to the drainage pipe work. IMPORTANT NOTE: The condensate drain must incorporate a U bend to create an air block and avoid leakage of smells back into the unit. -
Page 11: Ducting Guidelines
ComfoAir CA155CM HR155CM FRONT ComfoAir CA155CM HR155CM SIDE ComfoAir CA155CM Figure 11 - Close up view Figure 12 - Front View Figure 13 - Side View of condensate Ducting Guidelines Please refer to design drawings for proposed ducting layout. 2.7.1 Four spigots are provided for connection of the ducting; 2.7.2 • ComfoAir CA155WM / CA155CM - 125mm nominal diameter •... -
Page 12: Electrical
The intake fresh air should be directly from the outside. 2.7.7 • If drawn through a wall, an external grille should be fitted. • If drawn through a roof, a recognised roof terminal should be fitted. • Roof terminal to have a minimum equivalent free area of 10,000mm The exhaust air must exit to the outside through a wall or roof and must be protected by a wall grille or 2.7.8 recognised roof terminal. • Roof terminal to have a minimum equivalent free area of 10,000mm Intake and exhaust pipes should be installed at least 1m apart to avoid the cross contamination of airflows. 2.7.9 Electrical WARNING: The appliance MUST be earthed. 2.8.1 All wiring must conform to IEE or local Wiring Regulations. The installation must be carried out by a qualified Electrician. 2.8.2 All units are suitable for a 230V ~ 50Hz single phase supply fused at 3A. 2.8.3 A triple-pole switch having a minimum contact separation of 3.0mm must be used to provide isolation for 2.8.4 the unit. -
Page 13: Wiring The Unit
Wiring The Unit Step 1 Undo four screws from electrical connection cover and remove HR155CM ComfoAir CA155WM ComfoAir CA185WM ComfoAir CA155CM HR185WM HR155WM PCB CLOSEUP Figure 14 - Top View Figure 15 - Top View Figure 16 - Top View Wiring Step 2 Wire as per wiring diagram into the PCB terminal block. Upon completion, replace cover and secure with the four screws. - Page 14 Using suitably sized cabling, carefully remove the BMS terminal block and connector pins and wire to 2.9.3 respective pin locations. • 1 - 2 allows for remote high (boost) speed options. • 3 - 5 allows for remote fault indication. Relay will be energised upon detection of a fault. Upon completion of wiring, carefully push fit back onto PCB. Pin Function Connection to External Circuit Boost Volt free contact for additional sensors to High Ground 0V connection to PSU and High Speed Signal Isolated relay normally closed contact Isolated relay normally open contact 1 2 3 4 5 Common Isolated relay common contact Figure 22 - Close-up of PCB with BMS connection points...
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Page 15: On-Site Commissioning
3.0 On-Site Commissioning This section covers set-up, configuration of the unit for installation and altering pre-set factory settings. 3.1.1 For instructions on how to operate the LCD display user menu, maintenance options and indicator warning information, please refer to the User / Homeowner Guide. Once the wiring connections have been checked, switch the mains supply on and check that the system is 3.1.2 operating correctly. Lift cover of commissioning wizard located at the top of the unit. Upon connection of electrical supply, the commissioning wizard will automatically turn on (See Section 3.1.4). Integral LCD Display 3.1.3 Control Information Panel Control Button Summer Frost Service/Fault By-Pass Protection SETUP COMMISSIONING WIZARD SETUP COMMISSIONING WIZARD Below are examples/explanations of what you would see through the Commissioning Wizard. Below are examples/explanations of what you would see through the Commissioning Wizard. Example 1: Function selection screen O R T C O N F I G :... - Page 16 Commissioning Wizard 3.1.4 To progress through the commissioning wizard, rotate the controls central button to required configuration and press the button to select (at each section the text will flash until it has been selected, whereby it will then go solid). You can move backwards and forwards throughout the process until all settings are correct. • When first turning the power onto the unit, the "Setup Wizard" prompt will be shown. • Press the central button to start the commissioning wizard. • Refer to design drawings for setting up the required rates. The steps of the wizard are as follows: Step 1 Port Configuration Set-up Rotate button to choose either RH (Right Hand Configuration) or P O R T C O N F I G : LH (Left Hand Configuration) < R H > Press button to select Rotate button and choose FWD to move to next section or BACK to return to set-up Press button to select Step 2 Extract High Set-up Factory airflow set at 66%, rotate button to required airflow % E X T R A C T...
- Page 17 Valve Set-up 3.1.5 • Switch the unit to the highest operating position. • Close external windows and doors. • With the system operating in high mode, proceed to open the extract valves to their maximum. • Measure the total air volume at the extract valves. • Regulate the extract valves to the required flow per room. • Switch the unit to low speed to confirm desired extract rate is achieved. It should normally not be necessary to adjust the extract valves further. • Repeat tests for supply air valves. Once the unit is commissioned check that the system is operating correctly by turning the hardwired switch to 3.1.6 the differing settings, i.e. the ZGS2 switch will activate the unit between low and high speed settings. • Performance levels can be verified at both extract and supply air valves using an appropriate method such as a rotating vane anemometer and air cone kit. • Refer to performance graphs for ComfoAir CA155WM / CA155CM / CA185WM airflow characteristics (See Section 3.1.7 and 3.1.8). Note: All settings are stored within the ComfoAir unit’s memory and should NOT be lost in the event of a power failure.
- Page 18 Vireo HR155WM/HR155CM Performance Graph - Airflow Characteristics for ComfoAir CA155WM / CA155CM 3.1.7 100% Air ow Vireo HR185WM Performance Graph - Airflow Characteristics for ComfoAir CA185WM 3.1.8 100% Air ow To Re-activate Commissioning Set-up Wizard 3.1.9 In the event that the unit needs to be adjusted once the commissioning wizard has been completed; • Press the control button to activate the unit. < S E T U P M E N U > • Rotate button until the screen displays "Setup Menu". p a s s w o r d e n t r y •...
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Page 19: Guarantee
4.0 The Guarantee Period This Zehnder product (ComfoAir CA155WM / CA155CM / CA185WM) has a 2 Year Guarantee. This does not affect your statutory rights. 4.1.1 Full details available on request. 4.1.2... - Page 20 All information is believed correct at time of going to press. E&OE. All goods are sold according to Zehnder’s Standard Conditions of Sale which are available on request. All dimensions referred to are in millimetres unless otherwise stated. Zehnder Group International Sales reserves the right to change specifications and prices without prior notice. © Copyright Zehnder Group 2013 Zehnder Group International Sales • Almweg 34 • 77933 Lahr • Germany T +49 7821 586-392 • F +49 7821 586-406 international.sales@zehndergroup.com • www.zehnder-systems.com 05.10.1020 Issue 1 Sept 2013...
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