INSTALLATION GUIDE Single-room heat recovery air handling unit CIVIC EC LB 00 CIVIC EC LBE 00 CIVIC EC LBE 00 CIVIC EC LB 00-E CIVIC EC LBE 00-E CIVIC EC LBE 00-E CIVIC EC LB 500 CIVIC EC LBE 500 CIVIC EC LBE 500 INSTALLATION Tools required Pencil Drill Screwdriver Dowel ( pcs.) Screws ( pcs.) Sufficient service access to the unit for maintenance or repair operations must be provided. The recommended minimum distances from the unit to the walls are shown below. Make sure the unit has no foreign objects inside before starting it up. The unit is designed for mounting to a horizontal surface adjacent to the wall with the ready-made holes for the air ducts. The fixing brackets with a fastening hole enable fixation of the unit to the wall. The fixing brackets are not included in the delivery set. 74 N. 6th Street, Lafayette, IN 47905 MUI_BUSA4EN-0
min A min B min B 9+ / 6 * Pipe 5 / 6 min 5 / 6 min 5 / 6 U-trap (hydraulic lock) Condensate drain pipe Sewage system min MODEL A [inch] B [inch] СIVIC EC LB(E/E)00 СIVIC EC LB(E/E)00-E 5 / 8 / 4» СIVIC EC LB(E/E)500 / / 4» * the dimension may be increased during adjustment of the unit by means of the levelling feet The levelling feet on the bottom of the unit ensure exact alignment of the unit during mounting. For alignment of the unit loosen the nuts and adjust position of the support disc manually using a wrench. Then tighten the upper and the lower nut. To attain the best performance of the unit and to minimise turbulence-induced air pressure losses while mounting connect straight air duct sections to the unit spigots. Minimum straight air duct length: equal to air duct diameter on outside side equal to air duct diameters on outlet side If the air ducts are too short or not connected at any unit spigot, protect the unit inner parts from ingress of foreign objects by installing a protecting grille or other protecting device with mesh side width not more than / inch to prevent uncontrollable access to the fans. Fasteners for the unit mounting are not included into delivery set and should be ordered separately. While selecting appropriate fasteners consider material of the mounting surface as well as the weigh of the unit, refer to the technical data. For selection of the fasteners for unit mounting please refer to a service technician. 74 N. 6th Street, Lafayette, IN 47905 MUI_BUSA4EN-0
The drain pan in the heat recovery section is equipped with a drain pipe for condensate removal. Connect the pipe, the U-trap or U-trap of the other type (hydraulic lock) that is not included in the delivery set and a sewage system with metal, plastic or rubber connecting hoses. Install the hoses with the minimum slope. Before starting operation of the unit make sure that the water flows freely into the sewage collection system, otherwise condensed water may build up in the unit during heat recovery, which, in turn, may cause equipment failure and water ingress into the premises. Fill up the U-trap with water before using it. When using other U-trap systems read the installation instruction to prepare the condensate drain system for operation. For the units with a drain pump make sure that the flexible hose from the pump must is connected to the sewage system. The drain pump provides timely pumping of the condensed water from the unit. to sewage system MOUNTING OF HUMIDITY SENSOR (NOT INCLUDED IN THE DELIVERY SET) The humidity sensor must be attached inside of the return air duct. Open the unit, take off the upper part of the protecting housing and attach the humidity sensor to the holder located on the return air duct wall. Connect the humidity sensor sockets to a respective plug on the control unit. Update the control configuration after connection of the humidity sensor. Contact the product Seller for doing that. Plug for connection to the Socket for connection to the humidity sensor Holder Humidity sensor 74 N. 6th Street, Lafayette, IN 47905 MUI_BUSA4EN-0
MOUNTING OF RH, CO OR VOC SENSOR FOR THE UNITS WITH S7 AND S8 AUTOMATION The RH, CO or VOC sensor must be installed in the return air duct. Open the unit, disconnect the upper part of the protective housing and unscrew the holder that retains the inner partition box for the RH/CO /VOC sensor. Disconnect the socket using a screwdriver. Disassemble the RH/CO /VOC sensor as described in the installation instruction and wire it according to the wiring diagram. Assemble the RH/CO /VOC sensor in the reverse order and install it on the holder inside of the unit. Update the control configuration after connection of the RH/CO /VOC sensor. Contact the product Seller for doing that. Holder Sensor RH / СО / VOC RH sensor (DPWC000) wiring supply voltage 4 V AC / DC GND Output 0-0 V 4 5 CO sensor (DPWQ40000) wiring supply voltage 4 V AC / DC GND Output 0-0 V CO xpm 8 VOC sensor (DPWQ06000) wiring GND supply voltage 4 V AC / DC Output air quality 0-0 V 4 74 N. 6th Street, Lafayette, IN 47905 MUI_BUSA4EN-0
CONNECTION TO POWER MAINS The unit is rated for connection to 0 V / 60 Hz power mains. The unit must be connected to power mains using insulated electric conductors (cables, wires). The actual wire cross section selection must be based on the maximum load current, maximum conductor temperature depending in the wire type, insulation, length and installation method. The external power input must be equipped with an automatic circuit breaker built into the stationary wiring to open the electric circuit in case of overload or short-circuit. The circuit breaker installation place must provide quick access for emergency shutdown of the unit. The trip current of the automatic circuit breaker QF must exceed the maximum current consumption of the unit (refer to the technical data table). The recommended trip current of the circuit breaker is the next current in the standard trip current row following the maximum current of the connected unit. Automatic circuit breaker is not included in the delivery set. Route the cables to the control unit through the sealed cabled glands in the unit. All the electric connections must be performed in compliance with external wiring diagram and wired through the terminal block X in the control unit. Extra control units may be optionally connected to the unit. Extra connected control units are not included in the delivery set and must be ordered separately. Extra connections are shown in dotted lines in the wiring diagram. EXTERNAL WIRING DIAGRAM FOR THE UNITS WITH S4 AUTOMATION Connection of the fire alarm panel (PK) contact While connecting the fire alarm panel contact remove the jumper between the terminals 4 and 5. In this case the connection relies on a normally closed dry contact. In case of fire the normally closed dry contact opens the +U Rx Tx GND C NO PK PK PE N L control circuit from the central fire alarm panel and cuts off power supply to the unit. Connecting of the external control unit contact, such as RH/CO /VOC sensor 0 9 8 7 6 5 4 (NO, C). Connect the CO sensor to the terminals 6 and 7. In this case connection relies on a normally open dry contact. Once the contact is closed, the unit starts to run with the maximum speed. +U Rx Tx GND C NO PK PK PE N L The cable for connection of the control panel to the air handling unit must be of 4xAWG0 type and have the maximum length 9 / 8 inch. brown yellow green Control panel white NO-contact of the external control unit (RH/CO /VOC sensor) PK: fire alarm panel min. current A (remove the jumper during connection) PE N L QF EXTERNAL WIRING DIAGRAM FOR THE UNITS WITH S7 AND S8 AUTOMATION Connection of the fire alarm panel (PK) contact While connecting the fire alarm panel contact remove the jumper between the terminals 4 and 5. In this case PE N L NC NC GND R+ R- ~GND ~4 the connection relies on a normally closed dry contact. In case of fire the normally closed dry contact opens the control circuit from the central fire alarm panel and cuts off power supply to the unit. The cable for connection of the control panel to the air handling unit must 4 5 6 7 8 9 0 match the following requirements: PE N L NC NC ~4 ~GND R- R+ GND Cable type Telephone type Shielded cable AWG4 Distance to power supply source max. 64 ft max. 656 ft QF PE N L PK: fire alarm panel min. current A (remove the jumper during connection) ~4 ~GND R- R+ GND Control panel 74 N. 6th Street, Lafayette, IN 47905 MUI_BUSA4EN-0