EM-box (damper solution) ................................20 DTBU (damper option) ..................................21 External pre-heating element ................................. 22 Installation of expansion PCB on CTS602 Light circuit board ....................23 Electrical after heating element ..............................24 Water after heating element ................................25 Joint alarm ......................................26 Plumbing installation Connection of water trap .................................
Page 3
Connection of fire damper ................................30 Connecting two fire dampers ................................31 Connection Box for user selection and EM-box/DTBU simultaneous with fire automation system ........31 Alarm code ......................................32 Start-up and annual testing ................................32 Schedule for functional testing ................................ 33 Ventilation installation Duct system .......................................
The instructions can be downloaded from www.nilan.dk. If you have questions regarding installation and operation of the unit after having read the instructions, please contact your nearest Nilan dealer. A list of Nilan dealers is available on www.nilan.dk. ATTENTION The unit must be started up immediately after installation and connection to the duct system.
Unit type Product description The Comfort 350 Top is an energy efficient ventilation unit, offering heat recovery for homes and smaller commercial buildings with ventilation requirements of up to 407 m Comfort 350 Top is a system with compact dimensions that can be built into a cabinet with a width of 60 cm. Comfort 350 Top is deliv- ered tested and ready for operation.
Dimensional drawing Comfort 350 Top All listed measurements are in mm. Right version: Left version: Connections: 1. Outdoor air 2. Supply air 3. Extract air 4. Discharge air 5. Condensate drain NB! Spouts for inlet ring...
Dimensional drawing Comfort 350 Top Polar All listed measurements are in mm. Right version: Left version: Connections: 1. Outdoor air 2. Supply air 3. Extract air 4. Discharge air 5. Condensate drain NB! Spouts for inlet ring...
Functional block diagram Connections 1. Outdoor air 2. Supply air 3. Extract air 4. Discharge air 5. Condensate drain 6. Electrical or water after-heating element connec- tions T1 /T8 Automation T2/T7: Supply air temperature sensor T3: Extract air temperature sensor T4: Discharge air and de-icing temperature sensor T1/T8: Outdoor air temperature sensor T9: Water after-heating element temperature sensor...
Accessories Electrical pre-heating element for frost protection of the unit If your ventilation unit is not a Polar version with an integral pre-heating element, we recommend that you purchase an external pre-heating element as frost protection of the ventilation unit. During prolonged periods of frost, the high efficiency counterflow heat exchanger will ice up.
Fire Connection Box The Comfort ventilation unit has a function in its control system that can control 1-2 fire dampers. If you want to activate this function, Nilan can supply you with a Fire Connection Box, with the following con- nection options: •...
You can control your ventilation unit with a smartphone app via a gateway connection. Connect the Nilan Gateway to a CTS400 or a CTS602 control system. This way, a cloud connection to the unit can be established. The Gateway is available in two different versions - with either a LAN or a WiFi connec-...
Set-up Mounting Positioning of the ventilation unit ATTENTON When positioning the unit, you should always consider future service and maintenance. It must be easy to replace filters, and it must be possible to remove, for instance, the exchanger, and to replace fans or other components.
Duct connections An inlet ring needs to be fitted (not supplied by Nilan) 1. Use size Ø160mm inlet ring. 2. Press the inlet rings firmly into the ventilation nozzles.
Electrical installation Electrical connections Safety ATTENTION All work must be carried out by qualified persons and in compliance with existing legislation and regulations. ATTENTION It is important that the power is off, if you do work to the electrical components of the unit. It is important to check that wires are not damaged or squeezed during connection and use.
ATTENTION If you want a longer cable, use a standard LAN cable, max 50 meters. Nilan offers a 15 meter cable with plugs on both ends. Wall bracket Mount the HMI panel on the wall using the integrated wall bracket..
If you adapt an RJ45 cable yourself, be aware that wire 8 (Brown) can become live with 12V and must not be short circuited. In Nilan’s LAN cable the wires that are not used are not connected up to the RJ45 connector. With Nilan’s LAN cable there is therefore no risk of short circuits.
In that case you can have a potential-free contact that is activated, causing ventilation to increase, for example for an hour, before operation ceases again. Connection via Nilan Functional cable 1. Green/white 2. Green User selection 1 3. Orange/white User selection 2 4.
The CTS602Light control system has open Modbus RS485 communication that allows you to communicate with and control the ventilation unit via external control systems. Please consult the software instructions and the Modbus protocol for further information on settings and registers. Connection via Nilan Functional cable 1. Green/white 2. Green 3.
When you connect up an external fire automation system, it will be necessary for the ventilation unit to restart automatically. You can set for this to happen on the control panel. Please consult the software instructions for further information. Connection via Nilan Functional cable 1. Green/white 2.
When balancing the damper, the small stop blocks on the damper must be positioned so that the basic ventilation rate is maintained from the other rooms. The EM-box damper option it easy to connect up to Nilan’s CTS602 Connection Box. ATTENTION Information on connecting User selection output and GND can be found under: CTS602 Connection Box.
DTBU damper that it is to close for extraction from other rooms. However, the damper does not close complete- ly and a reduced level of air extraction from other rooms will still take place. The DTBU damper option it easy to connect up to Nilan’s CTS602 Connection Box. ATTENTION Information on connecting User selection output and GND can be found under: CTS602 Connection Box.
External pre-heating element It is possible to purchase an external electric pre-heating element for frost protection of the ventilation unit. The electric preheating element is mounted in the outdoor air duct before the unit with the necessary temperature sensor. If it is desired to see the actual outdoor air temperature on the control panel, the temperature sensor T1 / T8 must be led out into the duct before the preheating surface.
5. Connect the wires up in accordance with the wiring diagram. ATTENTION The expansion PCB and the connections must be installed by a certified electrician. The expansion PCB is an accessory for the CTS602 circuit board. Nilan does not supply external components.
0-10V Expansions PCB Connection on the CTS602 Expansion PCB: Connection on the CTS602 Light circuit board: T7: Temperature sensor (Black) 0-10V (Brown) - GND (Blue) Run the wires along the duct and through a grommet on the unit down to the circuit board. Connect the wires in accordance with the wiring diagram.
Joint alarm It may be difficult to notice alarms if the unit is located in a place where access is difficult or infrequent, and if the control panel is locat- ed in the same place. An external alarm indicator in the form of an electric bulb or an acoustic signal can be connected to the ventilation unit and announce when an alarm occurs.
Plumbing installation Connection of water trap It is important that the water trap complies with the measurements below. If the water trap is placed outside the climate screen, it should be protected against frost. Ø20 mm min. 50 mm min. 50 mm Illustration of connection at the bottom of the unit ATTENTION There is positive pressure in the condensate drain in the ventilation unit and it is therefore not necessary to install a wa-...
Supply flow 2. Actuator and regulation valve Danfoss AME 140/24V 0-10V signal, 2-way valve VZ2 Kv 0.4 (Nilan supply) the Kvs value must be checked against the power supply. Differential pressure: 0.1 - 0.6 bar. With a flow temperature of 60°C and at max- imum heat output, the temperature is esti- mated to fall with 20°C over the heating...
It is important to check that wires are not damaged or squeezed during connection and use. Usage Nilan's fire automation system is used to monitor, test and check the fire protection components of the ventilation system: • Fire and smoke damper, and fire thermostat Important functions: •...
Electrical connection fire automation system Connection of fire damper As an optional extra you can purchase Nilan's Fire Connection Box for connection of fire dampers. The fire automation system is integrated into the control system. Belimo fire damper Connection to the wiring harness 24 /230V AC...
EM-box/DTBU damper, Nilan can supply a Connection Box for connecting up the EM-box/DTBU damper. You can connect up the Connection Box to the Nilan Fire Connection Box (as illustrated). The fire damper is also connected up here. Connection Box for user selection and EM-box/DTBU...
Alarm code Set an alarm 96 - "Damper test" if a position (open / closed) has not been fulfilled within the maximum moving time of 120 seconds. The test will fail if: • Current starting position (open) is incorrect • Current position (open and closed) has not altered within the first 12 seconds of moving in each direction •...
Schedule for functional testing ATTENTION DS428 requires written documentation of the annual test of the Fire automatic system. Date: Comments: Tested by:...
This is to avoid vibrations from the unit being transmitted to the duct system. It will also make it easier to move the unit, which may be necessary during future services of the unit. Nilan can supply Soundflex tubes that you can use as flexible connections between the ventilation unit and the duct system. They will also reduce sounds from the system considerably.
Extract air Install the extract air valves in high-humidity rooms and place them strategically where they can extract humid and vitiated air from the dwelling/building most efficiently. High-humidity rooms are, for example: • Bathroom • Lavatory • Kitchen • Utility room Supply air Install supply air valves in living areas.
Balancing Important information ATTENTION To ensure the ventilation system operates optimally, it is important that it is balanced correctly. We recommend that experts do this. It is important to measure the total supply air and the total extract air. The system must have a minimum vacuum, which means it draw out more air than it blows in.