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Multi Variable Heat Pump Floor and Ceiling Type Indoor Unit

 

 

Fig.4.1.3 

4.2 Refrigerant Pipe Connection 

(1)    Align the flaring port of copper pipe with the center of screwed joint and then tighten the flaring nut by 

hand as shown in Fig. 4.2. 

(2)    Tighten the flaring nut with torque wrench. 

 

Fig.4.2 

(3) Use pipe bender when bending the pipe. The bending angle should not be too small. 

(4) Wrap the connection pipe and joint with sponge and secure firmly with tape. 

4.3 Drainage Pipe Installation and Drainage System Testing 

4.3.1 Notice for Installation of Drainage Pipe 

(1)    The drainage pipe should be as short as possible and the downward slope should be at least 1%~2% 

in order to drain condensation water smoothly. 

(2)  The diameter of drainage hose should be bigger or equal to the diameter of drainage pipe joint. 
(3)    Install drainage pipe according to the following Fig. and wrap insulation around the drainage pipe. 

Improper installation may lead to water leakage. 

(4)    Use normal hard PVC pipe for the drainage pipe. During connection, insert the end of PVC pipe into the 

drainage hole and then tighten it with drainage hose and wire binder. Never connect the drainage hole 
and drainage hose with glue. 

(5)    When the drainage pipelines are used for several units, the position of pipeline should be about 100mm 

(4 inch) lower than the drainage port of each unit. In this case, larger pipes should be applied. 

 

Fig.4.3.1.1 

Содержание BDFC-11.2-AK

Страница 1: ...AK BDFC 9 0 30 AK BDFC 11 2 36 AK BDFC 12 5 42 AK BDFC 14 0 48 AK z Please read this owner s manual carefully before operation and retain it for future reference z Specifications illustrations subjec...

Страница 2: ...nd provide the following information 1 Content on the nameplate model number cooling capacity serial number and manufacture date 2 Malfunction details before and after the malfunction occurred 7 Each...

Страница 3: ...ECTION 8 4 3 DRAINAGE PIPE INSTALLATION AND DRAINAGE SYSTEM TESTING 8 4 4 WIRED CONTROLLER INSTALLATION 11 5 WIRING WORK 11 5 1 CONNECTION OF WIRE AND PATCH BOARD TERMINAL 11 5 2 POWER CORD CONNECTION...

Страница 4: ...shock may occur 16 Do not expose the unit to the wet or corrosive circumstances 17 Under cooling mode please don t set the room temperature too low Keep the temperature difference between indoor and...

Страница 5: ...66 2 35 95 0 24 75 2 Rated Heating 20 68 0 15 59 0 7 44 6 6 42 8 2 3 Unit Functions Unit Functions Wired Controller WRC1 Optional Remote Controller RC Standard Operation Mode Cooling Heating Fan Dehum...

Страница 6: ...Paper pattern for installation 1 Locate the drill hole on ceiling or wall 8 Fastener 4 To fasten the sponge 3 2 Selecting a Location for Installation 1 The supporting structure to be used must have a...

Страница 7: ...3 Requirements of Communication Wire Selection Note If air conditioner is installed in or near a stong electromagnetic field STP shielded twisted pair communication cable must be used 3 3 1 Selection...

Страница 8: ...cuit breaker and power cord specification listed above are based on max power max current of the unit The power cord specification listed above is based on ambient temperature of 40 C 104 F The circui...

Страница 9: ...1 4 12 7 1 2 BDFC 5 0 18 AK 9 52 3 8 15 9 5 8 BDFC 7 1 24 AK BDFC 9 0 30 AK 9 52 3 8 15 9 5 8 BDFC 11 2 36 AK BDFC 12 5 42 AK BDFC 14 0 48 AK 9 52 3 8 15 9 5 8 Note Installtion and mounting must be ca...

Страница 10: ...drainage will become much smoother as shown in Fig 4 1 2 3 Floor type Fig 4 1 2 2 Ceiling type Fig 4 1 2 3 4 1 3 Leveling The water level test must be done after installing the indoor unit to make sur...

Страница 11: ...rt as possible and the downward slope should be at least 1 2 in order to drain condensation water smoothly 2 The diameter of drainage hose should be bigger or equal to the diameter of drainage pipe jo...

Страница 12: ...es 3 Insert the drainage hose into drain socket tighten the metal clamp securely 4 Warp the sealing pad over drain hose and metal clamp for heat insulation 5 Make sure to perform insulation work for a...

Страница 13: ...g 4 3 2 5 9 Prepare the local piping at the connection point for the drain pipe as shown in the installation drawings Fig 4 3 2 6 4 3 3 Test of Drainage System 1 Please test drainage system after elec...

Страница 14: ...than 2 5mm2 The unit should be powered by independent circuit and specific socket The wiring should have a dedicated power supply Install circuit breaker for branch circuit according to related regula...

Страница 15: ...ng tool 4 Use the screwdriver to tighten the terminal LJ LJ 5 2 Power Cord Connection Note All indoor units must have dedicated power supply so that they can be powered ON OFF at the same time For uni...

Страница 16: ...rovided with each ODU 5 4 Connection of Communication Wire for Wired Controller 1 Open the electric box of the IDU 2 Lead the communication wire through the wiring holes 3 Connect the communication wi...

Страница 17: ...Communication wire of indoor unit to outdoor unit or indoor unit is connected to D1 D2 2 Wired controller is connected to H1 H2 3 One indoor unit can connect two wired controllers One must be set as...

Страница 18: ...ontrolled by a single wired controller 2 When the indoor unit is controlled by two wired controllers the addresses of the two wired controllers should have different address setting Address 1 is for m...

Страница 19: ...ror code displayed after turning on power 6 3 Post Seasonal Maintenance 1 Set the unit in fan mode for half a day on a sunny day to dry the inner parts of unit 2 When the unit won t be used for a long...

Страница 20: ...is higher than 43 C 110 F Poor cooling effect The filter is dirty Too heavy heat load of room e g too many people Doors or windows are open Inlet or outlet of IDU are blocked Thermostat setting temper...

Страница 21: ...Specifications illustrations subject to change without notice or incurring obligations O Fallon MO 12 15 Nortek Global HVAC LLC 2015 All Rights Reserved 553E 1215...

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