INSTALLATION MANUAL
Contents
1. 1 Cutting liquid reducer 1 th 1 Connection to liquid pipe field supply Ti 2 Connection to liquid joint 20 32 Hp N3 3 Cutting position 2 4 No cutting for 18 Hp a Connection piping m Connect the liquid pipes and equalizer pipes as shown in the figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 m Refer to Dimensions for installation on page 3 m Keep the joint in a horizontal position as shown in view A in the figure below m Connect the liquid reducer 1 in an angle of 40 and bend the field supplied liquid pipe up to the stop valve as shown in the figure see view A in the figure below m Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes m Refer to Pipe size selection and cutting position of the joint on page 3 for the cutting requirements oe 9 10 11 Liquid accessory pipe 1 supplied with the outdoor unit Liquid pipe 1 field supply select the pipe length on site Equalizer accessory pipe 1 supplied with the outdoor unit Liquid joint Liquid reducer 1 Joint angle of 90 field supply refer to table 12 on page 5 Equalizer pipe 2 field supply refer to table 11 on page 5 Equalizer pipe 1 field supply refer to table 11 on page 5 O DAN Oo FP WN Liquid pipe field supply select the pipe length on site _ O Equalizer pipe field supply select2. m Keep the joint in a horizontal position as shown in view A in the figure below m Connect the liquid reducer 1 in an angle of 90 and bend the field supplied liquid pipe up to the stop valve as shown in the figure m Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes m Refer to Pipe size selection and cutting position of the joint on page 3 for the cutting requirements Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 view 90 11 z 2 a3 ON o 5 9 1011 567 9 Liquid accessory pipe 1 supplied with the outdoor unit Liquid joint Liquid reducer 1 Liquid pipe 1 field supply select the pipe length on site Joint angle of 90 field supply refer to table 12 on page 5 Equalizer pipe 2 field supply refer to table 17 on page 7 Equalizer pipe 1 field supply refer to table 17 on page 7 Liquid pipe field supply select the pipe length on site O ON OO a fF WN Equalizer accessory pipe 1 supplied with the outdoor unit _ Equalizer pipe field supply select the pipe length on site Liquid accessory pipe 2 supplied with the outdoor unit 5 AFTER CONNECTION OF THE PIPING Connection piping between the outdoor and indoor unit All piping must be executed according to instructions in the installation manual of the outdoor unit and an air tight test must be performed a
3. INSTALLATION OF SUCTION GAS AND Connection piping HP LP GAS PIPES m Connect the suction gas and HP LP gas pipes as shown in the figure below Cutting the field supplied gas pipes Before connecting the pipes first connect the suction gas joint and the suction gas reducer 1 the HP LP gas joint and the Use the following tables in case dimension A is 300 mm refer to HP LP gas reducers 1 and 2 Dimensions for installation on page 3 m See Dimensions for installation on page 3 for the location If dimension A exceeds 300 mm extend the L dimension of the height of the joint suction gas pipes 1 and 2 and HP LP gas pipes accordingly m Refer to the installation manual delivered with the outdoor unit for m For suction gas pipes only cautions on brazing pipes For L dimension of suction gas pipes 1 and 2 dimension B of m Keep the joint in a horizontal position see view A in the figure the field supplied angled joint as in table 8 on page 4 has been below taken into account If dimension B of the angled joint you use is m Connect the HP LP gas reducer 1 by tilting it 50 and connect different from that dimension B adjust the L dimension of the HP LP gas reducer 2 see view A in the figure below SCHON gas pipes MAESEN m Refer to Pipe size selection and cutting position of the joint on Tabl
4. Suction gas accessory pipe 2 Suction gas pipe 1 Outdoor delivered with the unit field supply unit B mm L mm 18 22 Hp o 137 _ 24 Hp 41 98 a D L 26 Hp 5 137 B 28 32 Hp 41 98 a Cutting position b no cutting required BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 DAIKIN Installation manual m For HP LP gas pipes only For L dimension of HP LP gas pipes 1 3 dimension B of the field supplied angled joint as in table 10 on page 4 has been taken into account Further connection of gas pipes and the field supplied straight size joints are of the type without stoppers If dimension B of the angled joint you use is different from that dimension B and or if the straight size joints have stopppers adjust the L dimension of HP LP gas pipes 1 3 accordingly Table 19 Pipe 1 Pipe 2 Pipe 3 L mm L mm L mm Outdoor unit field supply field supply field supply 18 28 Hp 155 86 94 L 30 32 Hp 119 110 82 Cutting suction gas reducer 1 and 2 and HP LP gas reducer 2 Suction gas Suction gas HP LP gas reducer 1 reducer 2 reducer 2 1 Connection to suction t fs gas pipe 1 field supply Qe 22e20 NP sqejgg6 32HP 2 Connection to suction 3 3 gas joint af 24 28 32 Hp 6 Cutting position 4 Connection to suction gas pipe field supply 5 Connection to HP LP gas Vv
5. 34 40 Hp 80 67 262 59 42 44 Hp 80 97 262 59 L 46 48 Hp 80 97 256 47 Table 27 Joint angle of 90 field supply 3 5 18 19 20 21 2223 Outdoor unit B mm 1 Suction gas joint 1 34 44 Hp 17 2 HP LP gas joint 1 B 3 Suction gas pipe field supply select the pipe length on site 46 48 Hp 23 5 4 HP LP gas reducer 1 5 HP LP gas pipe field supply select the pipe length on site Cutting suction gas reducer 1 and HP LP gas 6 Suction gas pipe 1 field supply refer to table 24 on page 11 reducer 2 7 HP LP gas reducer 2 8 Suction gas reducer 1 Suction gas Suction gas 9 HP LP gas pipe 1 field supply refer to table 26 on page 12 reducer 1 reducer 1 10 Suction gas accessory pipe 1 supplied with the outdoor unit OIRA ete 11 HP LP gas accessory pipe 1 supplied with the outdoor unit T Ta i cay suction gas pipe 1 12 Suction gas joint 2 ie 2 Connection to suction gas 13 EAE Gan PANA 3 3 joint 1 14 Suction gas pipe 2 field supply refer to table 24 on page 11 34 48 Hp ahaa f 36 48 Hp Cutting position 15 HP LP gas pipe 2 field supply refer to table 26 on page 12 2 5 Connection to suction gas pipe 2 16 Suction gas accessory pipe 2 supplied with the outdoor unit dn field supply 17 HP LP gas accessory pipe 2 supplied with the outdoor unit 5 Connection to suction gas 18 Joint 1 angle of 90 field supply refer to table 25 on page 11 Bi 2 Ei 2 ae 19 HP LP gas pipe 4 field supply refer to table 26 on
6. 28 6 N H ID 031 8 gt D 09 5 5 LID 012 7 a N Ju 2x 1x 1x 2x 2X O OD 015 9 n 4 5 3 ID 031 8 m l ID 28 6 D 041 3 D 034 9 OD 238 1 OD 031 8 D 025 4 ID 228 6 ID 25 4 ID 22 2 gt ID 019 1 1x 1x 1x 1x 1x 3x 1x ox 4x 2x a For both suction gas pipes and HP LP gas pipes NOTE headers and is to be purchased separately For combination of outdoor units follow Engineering Data Do not throw away any of the accessories until installation is completed Be sure to read this manual before installation and follow the instructions carefully when performing installation For installation of the outdoor units refer to the installation manual of the outdoor unit The installation of refrigerant pipes between outdoor and indoor units needs to be arranged by refnet joints and refnet Field supply parts Table 2 Quantity Quantity 907 1357 Selection procedure Parts 907 1357 Selection procedure l l l Suction gas pipes 1x x The joint size must be the same as Insulation for pipes See Pipe size selection and Joint the gas pipe size of the outermost set cutting position of the joint on angle HP LP gas pipes 2x 2x outdoor unit Refer to Pipe size Connection pipes page 3 and on page 10 of 90 l selection and cutting position of the Equalizer pipes 4x SX ioint on page 3 and pag
7. 300 mm standard Outdoor Pipe1 Pipe2 Pipe3 Pipe4 Pipe5 1 Liquid pipe unit L mm L mm L mm L mm L mm 2 Suction gas pipe 18 24Hp 223 193 73 233 64 il 3 HP LP gas pipe 4 Equalizer pipe 26 28 Hp 217 193 97 233 64 IL 5 Bottom frame 30 32 Hp 217 187 97 221 52 NOTE When the dimensions exceed these of the standard Table 16 cia installation extend the pipes between the outdoor unit g and the joint accordingly field supply Joint angle of 90 field supply Joint 3 Joint 4 Outdoor unit B mm B mm 18 24 Hp 17 17 PE 26 28 Hp 23 17 Tate 30 32 Hp 23 23 7 BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 4PW38477 1 Cutting suction gas reducer 1 and HP LP gas reducer 2 Suction gas reducer 1 HP LP gas reducer 2 Lh me Connection to suction gas pipe 1 field supply zig oe HP 2 Connection to suction gas joint 2 40 32 Hp 3 Cutting position 5 4 Connection to HP LP gas pipe 1 q field supply a 5 Connection to HP LP gas reducer 1 6 No cutting for 18 24 Hp Connection piping m Connect the suction gas and HP LP pipes as shown in the figure below Before connecting the pipes first connect the suction gas joint and the suction gas reducer 1 the HP LP joint and the HP LP reducer 1 and 2 m See Dimensions for installation on page 6 for the location height of the joint m Refer to the installation manual delivered w
8. angled joint you use is different from m Connect the HP LP gas reducer 1 by tilting it 50 and connect that dimension B adjust the L dimension of the equalizer pipes 1 and the HP LP gas reducer 2 see view in the figure below 2 accordingly m Refer to Pipe size selection and cutting position of joints on Table 28 Table 29 Joint angle of 90 B mm page 10 for the cutting requirements Equalizer pipe Pipe 1 L mm Pipe 2 L mm y ae 95 60 L 17 B BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 1 2 4PW38477 1 Cutting liquid reducer 1 Liquid reducer 1 Liquid reducer 1 Unit A Unit B 1 Connection to liquid pipe 1 field supply 1 t t pi anaes Aelen Connection to liquid joint 1 3 3 Cutting position psd Connection to liquid joint 2 a B W N No cutting for 34 Hp Connection piping O AON OO LR WN ok a QO N OO Connect the liquid pipes and equalizer pipes as shown in the figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 Refer to Dimensions for installation on page 11 Keep the joint in a horizontal position see view A in the figure below Connect the liquid reducer 1 in an angle of 40 and bend the field supplied liquid pipe up to the stop valve as shown in the figure Refer to the installation manual delivered with the outd
9. mm Outdoor unit field supply field supply field supply 34 44 Hp 155 86 94 L 46 48 Hp 119 110 82 Cutting suction gas reducer 1 2 and 3 and HP LP gas reducer 2 and 3 1 2 Liquid pipe 3 Suction gas pipe HP LP gas pipe 4 Equalizer pipe 2 INSTALLATION OF SUCTION GAS AND Suction gas reducer 1 Unit A f 3 34 48 Hp 2 a Suction gas reducer 2 fts 42 48 Hp lt Suction gas reducer 1 Unit B T ada ada 34 Hp gt 3 153648 Hp 5 Suction gas reducer 3 Te ge en 34 38 42 Hp Connection to suction gas accessory pipe 1 Connection to suction gas joint 1 Cutting position Connection to suction gas accessory pipe 2 Connection to suction gas joint 2 Connection to suction gas pipe field supply Connection to suction gas joint 2 No cutting for 34 40 Hp HP LP GAS PIPES Cutting the field supplied and unit suppled gas pipes HP LP gas HP LP gas m For suction gas pipes only reducer 2 reducer 2 HP LP gas For L dimension of suction gas pipe 1 dimension B of the field Unit A Unit B reducer 3 supplied angled joint as in table 25 on page 11 has been taken 1 Connection to HP LP gas into account Further connection of gas pipes and the field fi pipe 1 supplied straight size joints are of the type without stoppers If 34 48 Hp 2 Conn
10. page 12 Unit A Unit B co HP LP gas pipe 1 20 Joint 2 angle of 90 field supply refer to table 27 on page 12 te ts 7 Connection to HP LP gas 21 m gas pipe 3 POORE bo to p 26 on page E PPRA m E reducer 1 22 Suction gas accessory pipe 3 supplied with the outdoor unit 3 Na 8 Connection to HP LP gas pipe 2 23 HP LP gas accessory pipe 3 supplied with the outdoor unit field supply 24 Suction gas pipe 3 field supply refer to table 24 on page 11 Y Y 9 No cutting for 34 40 Hp Connection piping 4 INSTALLATION OF LIQUID PIPES AND m Connect the suction gas and HP LP gas pipes as shown in the EQUALIZER PIPES figure below Before connecting the pipes first connect the suction gas joint Cutting the field supplied equalizer pipes and the suction gas reducer 1 the HP LP gas joint and the l l l l l HP LP gas reducers 1 and 2 Use the following tables in case dimension A is 318 mm refer to m See Dimensions for installation on page 11 for the location Dimensions ter NSO on page 11 height of the joint If dimension A exceeds 318mm extend the L dimension of the Mm Refer to the installation manual delivered with the outdoor unit for equalizer pipes 1 and 2 accordingly cautions an brazing ppa 7 For L dimension of equalizer pipes 1 and 2 dimension B of the field m Keep the joint in a horizontal position see view in the figure supplied angled joint as in table 29 on page 12 has been taken into below account If dimension B of the
11. pipe 3 field supply refer to table 36 on page 16 20 Suction gas accessory pipe 3 supplied with the outdoor unit refer to table 35 on page 16 21 Suction gas pipe 1 field supply refer to table 35 on page 16 22 Joint 3 angle of 90 field supply refer to table 31 on page 14 23 HP LP gas accessory pipe 3 supplied with the outdoor unit 24 Straight size joint field supply 25 HP LP gas pipe 1 field supply refer to table 36 on page 16 figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 m Keep the joint in a horizontal position see view A in the figure below m Bend the field supplied liquid pipe up to the stop valve as shown in view A in the figure below B Referto the installation manual delivered with the outdoor unit for cautions on brazing pipes view A Soei 1 7 0 1 5 Or H gt ar A i iF LNG o pp y La I Ki En eN had Ee l a al is el bn sl gi gra 41 rn EE 1234 5 IS Ecalta 12 A e 1 Liquid joint 1 2 Liquid pipe 1 field supply select the pipe length on site 3 Liquid reducer 1 4 Joint angle of 90 field supply refer to table 29 on page 12 5 Liquid pipe 2 field supply select the pipe length on site 6 Liquid accessory pipe 1 supplied with the outdoor unit 7 Equalizer accessory pipe 1 supplied with the outdoor unit 8 Equalizer pipe field supply select
12. DAIKIN INSTALLATION MANUAL Outdoor unit multi connection piping kit BHFQ23P907 BHFQ23P1357 DAIKIN BHFQ23P907 BHFQ23P1357 Outdoor unit multi connection piping kit Installation manual A IMPROPER INSTALLATION OR ATTACHMENT OF EQUIPMENT OR ACCESSORIES COULD RESULT IN ELECTRIC SHOCK SHORT CIRCUIT LEAKS FIRE OR OTHER DAMAGE TO THE EQUIPMENT BE SURE ONLY TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE SPECIFICALLY DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE THEM INSTALLED BY A PROFESSIONAL IF UNSURE OF INSTALLATION PROCEDURES OR USE ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE AND INFORMATION This kit includes the following parts Table 1 Shape Kit Suction gas HP LP gas Liquid Equalizer Liquid Insulation name joint Suction gas reducer HP LP gas reducer reducer Gas Liquid 1D 9318 1 2 3 1 2 1 ID 228 6 D 019 1 D 19 1 ID 34 9 D 25 4 ID 19 1 D 9 5 ID 22 2 ID 22 2 ID 22 2 L ID 12 7 D ID 25 4 ID 025 4 7 OD 925 4 D ID 28 6 L ID 28 6 A OD 25 4 OD 015 9 rap OD 31 8 O OD 25 4 OD 025 4 LL 1D 025 4 a ID 028 6 ID 25 4 ID 922 2 gt D 019 1 1x 1x 1x 1x 1x 1x 1x 2x 1x 1 1 2 3 1 2 1 ID 38 1 1 ID 31 8 ID 028 6 D 025 4 ID 019 1 ID 31 8 ID 22 2 OD 025 4 OD 031 8 i OD 025 4 ID 25 4 LID
13. TE g When the dimensions exceed these of the standard installation extend the pipes between the outdoor unit and the joint accordingly field supply Installation manual 3 DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 3 INSTALLATION OF SUCTION GAS AND HP LP GAS PIPES reducer 2 Cutting suction gas reducer 1 and HP LP gas m For HP LP gas pipes only For L dimension of HP LP gas pipes 1 7 dimension B of the field supplied angled joint as in table 33 on page 14 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of HP LP Suction gas Suction gas Cutting the field supplied gas pipes reducer 1 reducer 1 Unit A Unit B Use the following tables for standard installation refer to r oen i aod Taf onnection to SUCTION gas pipe Dimensions for installation on page 13 T t field supply If the dimensions exceed these of the standard installation extend ao Connection to suction gas l 3 3 ye the L dimension of the suction gas pipes 1 6 and HP LP gas pipes aa nn joint 1 1 7 accordingly Cutting position m For suction gas pipes only 2 5 Connection to suction gas pipe 5 For L dimension of suction gas pipes 1 6 dimension B of the field supply field supplied angled joint
14. accordingly m For suction gas pipes only For L dimension of suction gas pipes 1 3 dimension B of the field supplied angled joint as in table 25 on page 11 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of suction gas pipes 1 3 accordingly Table 24 Pipe 1 Pipe 2 Pipe 3 Outdoor unit L mm L mm L mm 34 Hp 135 79 256 La 36 38 Hp 135 153 256 40 Hp 135 153 252 L 42 Hp 135 153 256 44 48 Hp 135 153 252 i Table 25 Joint angle of 90 field supply Outdoor unit B mm 1 Liquid joint 1 5 Equalizer pipe 34 38 Hp 23 2 To indoor unit 6 Liquid joint 2 40 Hp 29 ate 3 Suction gas joint 1 7 HP LP gas joint 2 42 Hp 23 4 HP LP gas joint 1 8 Suction gas joint 2 44 48 Hp 59 B Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 m For HP LP gas pipes only For L dimension of HP LP gas pipes 1 2 3 and 4 dimension B of the field supplied angled joint as in table 27 on page 12 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of HP LP gas pipes 1 2 3 and 4 accordingly Table 26 Pipe 1 Pipe 2 Pipe 3 Pipe 4 Outdoor unit L mm L mm L mm L mm
15. ade for pipes with 19 1 a minimal wall thickness of 1 2 mm or more is required and connections need to be brazed Table 21 Outdoor unit 34 48 Hp Suction gas 28 6x1 0 1 2H Pipe size HP LP gas Q22 2x1 0 1 2H 12 7x0 80 O m All required tape is field supply m In case of indoor installation make sure that the tape is of the fireproof type in order to comply with local a OD x minimum wall thickness temper grade type Table 22 LOU Celere s unit Suction gas Pipe size HP LP gas Liquid 34 Hp 22 2x1 0 1 2H 19 1x1 0 1 2H 9 5x0 80 O 36 40 Hp 28 6x1 0 1 2H 19 1x1 0 1 2H 12 7x0 80 O 42 48 Hp 28 6x1 0 1 2H 22 2x1 0 1 2H 12 7x0 80 O a OD x minimum wall thickness temper grade type Table 23 Outdoor unit Suction gas Pipe size HP LP gas regulations 34 38 Hp G22 2x1 0 1 2H 19 1x1 0 1 2H 9 5x0 80 O 42 Hp 22 2x1 0 1 2H 19 1x1 0 1 2H 9 5x0 80 O 40 44 Hp 28 6x1 0 1 2H 19 1x1 0 1 2H 12 7x0 80 O 46 48 Hp 28 6x1 0 1 2H 22 2x1 0 1 2H 12 7x0 80 O a OD x minimum wall thickness temper grade type BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 4PW38477 1 10 m Cut the pipe with a pipe cutter 1 Joint or reducer Cut in order to have a fitting depth of 15 mm 3 Field pipe Ho
16. as in table 31 on page 14 has been 5 Connection to suction gas taken into account If dimension B of the angled joint you use is ite gas died gas joint 2 different from that dimension B adjust the L dimension of i ia eo 6 Connection to HP LP gas pipe 4 suction gas pipes 1 6 accordingly t t field supply 6 8 7 Connection to HP LP gas Table 30 ae er as M reducer 1 Outdoor Pipe1 Pipe2 Pipe3 Pipe4 Pipe5 Pipe6 3 3 8 Connection to HP LP gas pipe 5 unit Hp L mm L mm L mm L mm L mm L mm field supply 34 212 199 164 168 102 244 F Y Y 9 No cutting for 34 40 Hp 36 38 212 195 164 168 168 244 42 212 195 164 168 168 244 l 44 48 512 195 160 168 168 530 m Connect the suction gas and HP LP pipes as shown in the figure below Table 31 Before connecting the pipes first connect the suction gas joint and the suction gas reducer 1 the HP LP gas joint and the Joint angle of 90 field supply HP LP gas reducer 1 and 2 Joint Joint 2 Joint 3 Refer to the installation manual delivered with the outdoor unit for Outdoor unit B mm B mm B mm cautions on brazing pipes 34 Hp 29 23 23 Re n l l Keep the joint in a horizontal position see view A in the figure 36 38 Hp 29 29 23 below a B ae 40 Hp 29 29 29 m Refer to Pipe size selection and cutting position of joints on 42 Hp 29 29 23 B page 10 for the cutting requirements 44 48 Hp 29 29 29 gas pipes 1 7 accordingly Table 32 Outdoor Pipe 1 Pipe2 Pipe3 P
17. e 10 Tape 1 set For insulation Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 Selection procedure Table 3 Kit name 3 units BHFQ23P1357 Number of outdoor units A m The quantity and selection procedure for use of joints with an angle of 90 only apply to front connection installations m For lower front connection and bottom connection installations the quantity and selection procedure are different Please refer to the dedicated instructions m Joints for pipes with the same diameter are only needed for bottom connection installations See dedicated instructions for quantities and specifications RESTRICTIONS ON INSTALLING THE MULTI CONNECTION PIPING KIT T m When installing the multi outdoor system connect the units as shown in the figure below If installed in a different order the outdoor unit multi connection piping kit may not fit properly and some additional field supplied pipe size reducers may be required Outdoor unit multi connection piping kit type Unit capacity A gt B l TN 1 To indoor unit 2 Outdoor unit multi connection piping kit first branch 3 Outdoor unit multi connection piping kit second branch m f the total capacity of the connected indoor units exceeds the total capacity of the outdoor units cooling and heating performance may be reduced when running the indoor units Refer to the capacity table in the Engi
18. e 7 page 3 for the cutting requirements Outdoor unit 18 Hp 61 238 T 20 22 Hp 135 238 24 Hp 135 234 L 26 Hp 135 238 28 32 Hp 135 234 EN Table 8 Joint angle of 90 field supply Outdoor unit B mm 18 22 Hp 23 24 Hp 29 ate 26 Hp 23 X B Eomae Fp 29 10 111213 14 16 17 18 m For HP LP gas pipes only 1 Suction gas accessory pipe 1 supplied with the outdoor unit For L dimension of HP LP gas pipes 1 2 and 3 dimension B of 2 Suction gas pipe 1 field supply refer to table 7 on page 4 the field supplied angled joint as in table 10 on page 4 has been Sey 3 HP LP gas accessory pipe 1 supplied with the outdoor unit taken into account If dimension B of the angled joint you use is a fered a different from that dimension B adjust the L dimension of HP LP Bevel Bn pm gas pipes 1 2 and 3 accordingly 5 HP LP gas joint 6 Suction gas reducer 1 Table 9 7 HP LP gas reducer 1 8 HP LP gas reducer 2 Outdoor unit 9 HP LP gas pipe 1 field supply refer to table 9 on page 4 18 24 Hp 10 HP LP gas pipe field supply select the pipe length on site 26428 Hp 80 245 59 L 11 Suction gas pipe field supply select the pipe length on site 12 Joint 1 angle of 90 field supply refer to table 8 on page 4 30 32 Hp 13 HP LP gas pipe 3 field supply refer to table 9 on page 4 14 Joint 2 angle of 90 field supply refer to table 10 on page 4 Table 10 15 Suction gas pipe 2 field supply refer to table 7 on page 4 Joint an
19. ection to HP LP gas dimension B of the angled joint you use is different from that 3 reducer 1 dimension B and or if the straight size joints have stopppers 5 3 Cutting position adjust the L dimension of suction gas pipe 1 accordingly y 4 Connection to HP LP gas Table 35 for outdoor unit C ppoe 5 No cutting for 34 40 Hp Suction gas accessory l 6 Connection to HP LP gas pipe 3 Suction gas pipe 1 ipe field supply delivered with the unit field supply Pip PPly Outdoor unit B mm L mm f Connection to HP LP gas joint 2 34 38 Hp 0 137 iN 8 No cutting for 34 36 Hp 40 46 Hp 0 a 102 L B 48 Hp 41 98 En a cutting position b no cutting required BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 4PW38477 1 16 Connection piping m Remove the knockout plate on the bottom frame Refer to the installation manual delivered with the outdoor unit m Connect the suction gas pipes and HP LP gas pipes as shown in the figure below Before connecting the pipes first connect the suction gas joint and the suction gas reducer 1 the HP LP gas joint and the HP LP gas reducers 1 and 2 3 INSTALLATION OF LIQUID PIPES AND EQUALIZER PIPES Cutting liquid reducer 1 Liquid reducer 1 Liquid reducer 1 m Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes m Keep the joint in a horizontal position see view A in the figure below m Connect
20. es 1 and 2 dimension B of the field supplied angled joint as in table 29 on page 12 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of the equalizer pipes 1 and 2 accordingly Table 34 Equalizer pipe Pipe 1 L mm Pipe 2 L mm q 65 120 L 1 Cutting liquid reducer 1 Liquid reducer 1 Liquid reducer 1 Unit A Unit B 1 Connection to liquid pipe 1 field supply 1 t t G Hp a Hp Connection to liquid joint 1 Cutting position 2 4 w Connection to liquid joint 2 ao A W N No cutting for 34 Hp Connection piping m Connect the liquid pipes and equalizer pipes as shown in the figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 m Refer to Dimensions for installation on page 13 m Keep the joint in a horizontal position as shown in view A in the figure below m Connect the liquid reducer 1 in an angle of 90 and bend the field supplied liquid pipe up to the stop valve as shown in the figure see view A m Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes m Refer to Pipe size selection and cutting position of joints on page 10 for the cutting requirements 10 2 3115 Liquid joint 1 Liquid reducer 1 Joint angle of 90 field supply refer to table 29 o
21. f the joint Select the correct pipe size according the tables below and cut the joints and reducers on the correct cutting point with a pipe cutter 1 Main pipe see table 4 on page 3 2 Joint refer to Restrictions on Mp installing the multi connection 5 piping kit on page 2 gi i 3 Pipe between joint and the outdoor th unit A see table 5 on page 3 ot m 4 Pipe between joint and the outdoor H unit B see table 6 on page 3 te pris f Table 4 Su on Z m Select the pipe size in function of the total capacity of the S outdoor unit Total capacity Pipe size of outdoor 1 Liquid joint 4 HP LP gas joint units Suction gas HP LP gas 2 To indoor unit 5 Equalizer pipe 18 Hp 28 6x1 0 1 2H 22 2x1 0 1 2H 015 9x1 0 O 3 Suction gas joint 20 22 Hp G28 6x1 0 1 2H G28 6x1 0 1 2H G15 9x1 0 O 24 Hp 034 9x1 21 1 2H G28 6x1 0 1 2H 15 9x1 0 O 26 32 Hp 034 9x1 21 1 2H G28 6x1 0 1 2H O19 1x1 0 1 2H o DIMENSIONS FOR INSTALLATION a OD x minimum wall thickness temper grade type m When upsizing the main pipe use gas reducer 3 Top view Freontview m When using pipes of 019 1 or larger make sure to use pipes with 1 2H temper grade with a wall thickness of 1 0 mm In case there is no alternative and you use the O temper grade for pipes lt with 19 1 a minimal wall thickness of 1 2mm or more is required and connection
22. f the standard installation extend the L dimension of the suction gas pipes 1 4 and HP LP gas pipes 1 5 accordingly m For suction gas pipes only For L dimension of suction gas pipes 1 4 dimension B of the field supplied angled joint as in table 14 on page 6 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of suction gas pipes 1 4 accordingly Table 13 Outdoor Pipe 1 Pipe 2 Pipe 3 Pipe 4 unit L mm L mm L mm L mm 18 Hp 216 181 102 244 T 20 22 Hp 212 181 168 244 24 Hp 212 177 168 232 L 26 Hp 212 181 168 244 28 32 Hp 212 177 168 232 1 Liquid joint 3 To indoor unit 2 HP LP gas joint 4 Suction gas joint Table 14 5 Equalizer pipe Joint angle of 90 field supply Joint 1 Joint 2 Outdoor unit B mm B mm 2 DIMENSIONS FOR INSTALLATION 18 Hp 23 23 Dimensions for standard installation eee 23 23 BT 24 Hp 29 29 a 26 Hp 29 23 5 28 32 Hp 29 29 m For HP LP gas pipes only For L dimension of HP LP gas pipes 1 5 dimension B of the field supplied angled joint as in table 16 on page 6 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of HP LP gas pipes 1 5 accordingly 198 181 152 Table 15 A
23. fter complete installation of the piping Insulation of joints Step 1 Fit the insulation 1 around the reducer 2 and keep it in place with tape mm 3 Step 2 Cut the insulation 5 along the slit 4 Fit the insulation around the joint 6 and keep it in place with tape mm 7 without leaving a gap between the two insulated parts Step 3 Seal the seam between the insulation and the field piping insulation with tape mm 8 Step 4 Cover the insulated parts completely with tape mm without leaving any gaps 9 B All required tape is field supply m Incase of indoor installation make sure that the tape is of the fireproof type in order to comply with local regulations IN CASE OF BOTTOM PIPING 1 EXTERIOR 1 Liquid pipe 3 Suction gas pipe 2 HP LP gas pipe 4 Equalizer pipe 2 INSTALLATION OF SUCTION GAS AND HP LP GAS PIPES Cutting the field supplied and unit supplied gas pipes m For suction gas pipes only For L dimension of suction gas pipe 1 dimension B of the field supplied angled joint as in table 8 on page 4 has been taken into account Further connection of gas pipes and the field supplied joints for same diameter are of the type without stoppers If dimension B of the angled joint you use is different from that dimension B and or if the joints for same diameter pipes have stopppers adjust the L dimension of suction gas pipes 1 accordingly Table 18 for outdoor unit B
24. g may result in malfunctioning of the unit Pipe size selection and cutting position of joints Select the correct pipe size according with the tables below and cut the joints and reducers on the correct places with a pipe cutter A B C m Main pipe Select the pipe size in function of the total capacity of the outdoor unit units A B C m Connection inbetween connection joints 1 Main pipe see table 20 on page 10 2 First joint refer to Restrictions on installing the multi connection piping kit on page 2 3 Pipe between the first joint and outdoor unit A see table 21 on page 10 Piping inbetween connection joints Pipe between the second joint and outdoor unit B see table 22 on page 10 6 Pipe between the second jount and outdoor unit C see table 23 on page 10 Select the pipe size in function of the total capacity of the outdoor units to be connected upstream units B C Table 20 Total capacity outdoor units Suction gas Pipe size HP LP gas 34 Hp 34 9x1 21 1 2H 28 6x1 0 1 2H 19 1x1 0 1 2H 36 Hp O41 3x1 43 1 2H 28 6x1 0 1 2H 19 1x1 0 1 2H 38 48 Hp 041 3x1 43 1 2H 34 9x1 21 1 2H 19 1x1 0 1 2H a OD x minimum wall thickness temper grade type m When using pipes of 019 1 or larger make sure to use pipes with 1 2H temper grade with a wall thickness of 1 0 mm In case there is no alternative and you use the O temper gr
25. gle of 90 field supply 16 HP LP gas pipe 2 field supply refer to table 9 on page 4 Outdoor unit B mm 17 Suction gas accessory pipe 2 supplied with the outdoor unit 18 HP LP gas accessory pipe 2 supplied with the outdoor unit 18 28 Hp 17 Tus 30 32 Hp 23 w Cutting suction gas reducer 1 and HP LP gas reducer 2 Suction gas HP LP gas reducer 1 reducer 2 f ta Connection to suction gas 6 pipe 1 field supply Se S Hp Connection to suction gas joint pet20 32 Hp Cutting position 5 Connection to HP LP gas pipe 1 y field supply ec Connection to HP LP gas reducer 1 No cutting for 18 24 Hp BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 4PW38477 1 4 4 INSTALLATION OF LIQUID PIPES AND EQUALIZER PIPES Cutting the field supplied equalizer pipes Use the following tables in case dimension A is 300 mm refer to Dimensions for installation on page 3 If dimension A exceeds 300 mm extend the L dimension of the equalizer pipes 1 and 2 accordingly For L dimension of equalizer pipes 1 and 2 dimension B of the field supplied angled joint as in table 12 on page 5 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of the equalizer pipes 1 and 2 accordingly Table 11 Table 12 Equalizer pipe Pipe 1 L mm Pipe 2 L mm 4 Joint angle of 90 B mm Ar B 95 60 L 17
26. gth on site 14 Suction gas accessory pipe 2 supplied with the outdoor unit refer to table 19 on page 9 15 Suction gas pipe 1 field supply refer to table 18 on page 8 16 Joint 2 angle of 90 field supply refer to table 8 on page 4 17 HP LP gas pipe 1 field supply refer to table 19 on page 9 18 Straight size joint field supply 19 HP LP gas accessory pipe 2 supplied with the outdoor unit 3 INSTALLATION OF LIQUID PIPES AND EQUALIZER PIPES Cutting liquid reducer 1 T 1 Connection to liquid pipe field supply ims 2 Connection to liquid joint 20 32 Hp N3 3 Cutting position 2 4 No cutting for 18 Hp dmz Connection piping m Remove the knockout plate on the bottom frame Refer to the installation manual delivered with the outdoor unit m Connect the liquid pipes and equalizer pipes as shown in the figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 m Keep the joint in a horizontal position see view A in the figure below m Bend the field supplied liquid pipe up to the stop valve as shown in the figure below m Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes m Refer to Pipe size selection and cutting position of the joint on page 3 for the cutting requirements Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 Liquid joint Liqu
27. id accessory pipe 1 supplied with the outdoor unit Liquid pipe 1 field supply Select the pipe length on site Equalizer accessory pipe 1 supplied with the outdoor unit Joint angle of 90 field supply refer to table 12 on page 5 Liquid reducer 1 Liquid pipe 2 field supply Select the pipe length on site Equalizer pipe field supply select the pipe length on site O AON OO a fF WN Liquid accessory pipe 2 supplied with the outdoor unit 4 AFTER CONNECTION OF THE PIPING Connection piping between the outdoor and indoor unit All piping must be executed according to instructions in the installation manual of the outdoor unit and an air tight test must be performed after complete installation of the piping Insulation of joints 1 w Step 1 Fit the insulation 1 around the reducer 2 and keep it in place with tape mm 3 Step 2 Cut the insulation 5 along the slit 4 Fit the insulation around the joint 6 and keep it in place with tape mm 7 without leaving a gap between the two insulated parts Step 3 Seal the seam between the insulation and the field piping insulation with tape mm 8 Step 4 Cover the insulated parts completely with tape mm without leaving any gaps 9 FoR BHFG2SP1357 A Refer to the installation manual of the outdoor unit for selection and restriction for the piping between outdoor branches Not observing restrictions on the interconnecting pipin
28. ipe4 Pipe5 Pipe6 Pipe 7 unit Hp L mm L mm L mm L mm L mm L mm L mm 34 40 217 206 176 97 73 233 64 42 44 217 200 176 97 97 233 64 JL 46 48 217 200 170 97 97 221 52 7 15272627 28 29 28 30 28 Table 33 f 1 Suction gas joint 1 Joint angle of 90 field supply 2 HP LP gas joint 1 Joint 4 Joint 5 Joint 6 Outdoor unit B mm B mm B mm 3 Joint 1 angle of 90 field supply refer to table 31 on page 14 34 40 Hp 23 17 17 4 Suction gas pipe 4 field supply refer to table 30 on page 14 42444 Hp 23 23 17 B 5 Suction gas reducer 1 6 HP LP gas reducer 2 46 48 Hp 23 23 23 B 7 Suction gas pipe field supply select the pipe length on site 8 Joint 4 angle of 90 field supply refer to table 33 on page 14 9 Suction gas pipe 1 field supply refer to table 30 on page 14 10 HP LP gas pipe 1 field supply refer to table 32 on page 14 11 Suction gas accessory pipe 1 supplied with the outdoor unit 12 HP LP gas accessory pipe 1 supplied with the outdoor unit 13 HP LP gas pipe 4 field supply refer to table 32 on page 14 14 HP LP gas reducer 1 15 HP LP gas pipe field supply select the pipe length on site 16 Joint 2 angle of 90 field supply refer to table 31 on page 14 BHFQ23P907 1357 DAIKIN Installation manual Outdoor unit multi connection piping kit 4PW38477 1 14 17 Suction gas
29. ith the outdoor unit for cautions on brazing pipes m Keep the joint in a horizontal position see view A m Connect the HP LP gas reducer 1 by tilting it 40 and connect the HP LP gas reducer 2 see view A in the figure below m Refer to Pipe size selection and cutting position of the joint on page 3 for the cutting requirements 5943 2 1 21 22 23 24 8 9 10 1112 131415 161718 19 18 20 18 1 HP LP gas accessory pipe 1 supplied with the outdoor unit 2 Suction gas accessory pipe 1 supplied with the outdoor unit 3 HP LP gas pipe 1 field supply refer to table 15 on page 6 4 Suction gas pipe 1 field supply refer to table 13 on page 6 5 Joint 1 angle of 90 field supply refer to table 14 on page 6 6 Joint 3 angle of 90 field supply refer to table 16 on page 6 7 HP LP gas pipe 3 field supply refer to table 15 on page 6 8 Suction gas joint 9 Suction gas pipe 3 field supply refer to table 13 on page 6 10 HP LP gas joint 11 Suction gas reducer 1 12 HP LP gas reducer 2 13 HP LP gas reducer 1 14 Suction gas pipe field supply select the pipe length on site 15 HP LP gas pipe field supply select the pipe length on site 16 Suction gas pipe 4 field supply refer to table 13 on page 6 17 Joint 2 angle of 90 field supply refer to table 14 on page 6 18 Joint 4 angle of 90 field supply refer to table 16 on page 6 19 HP LP gas pipe 5 field supply refer
30. n page 12 Equalizer pipe field supply select the pipe length on site Equalizer pipe 2 field supply refer to table 34 on page 15 Liquid accessory pipe 1 supplied with the outdoor unit Liquid pipe field supply select the pipe length on site Equalizer accessory pipe 1 supplied with the outdoor unit O DAN Oa FF WN Equalizer pipe 1 field supply refer to table 34 on page 15 Liquid joint 2 Equalizer joint tk N oO Liquid pipe accessory 2 supplied with the outdoor unit 13 Liquid pipe accessory 3 supplied with the outdoor unit 2 AFTER CONNECTION OF THE PIPING Follow the instructions on 2 After connection of the piping on page 8 Installation manual 15 DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 For HP LP gas pipes only For L dimension of HP LP gas pipes 1 3 dimension B of the field supplied angled joint as in table 27 on page 12 has been taken into account Further connection of gas pipes and the field supplied joints for same diameter are of the type without stoppers If dimension B of the angled joint you use is different from that dimension B and or if the joints for same diameter pipes have stopppers adjust the L dimension of HP LP gas pipes 1 3 accordingly IN CASE OF BOTTOM PIPING u 1 EXTERIOR A Be sure to foresee enough space for brazing and piping work under the unit Table 36 Pipe 1 Pipe 2 Pipe 3 L mm L mm L
31. neering Data Book for more details attached to the joint comes to the top Do not tilt the joint more than 15 see view A m Install the joints horizontally so that the caution label 1 m Use piping with temper grade in function of the pipe diameter as listed in the table below m The pipe thickness of the refrigerant piping must comply with relevant local and national regulations The minimum pipe thickness for R410A piping must be in accordance with the table below for design pressure of 4 0 MPa 40 bar Temper grade 1 2H type Minimum thickness 0 80 0 80 0 80 t mm 1 00 1 10 1 21 1 32 1 48 O Annealed 1 2H Half hard m Make sure that the total length of the piping connected to the joint is absolute straight for more than 500 mm Only if a straight field piping of more than 120mm is connected more than 500 mm of straight section can be ensured B Improper installation may lead to malfunction of the outdoor unit BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 DAIKIN Installation manual For BHFQ23P9S07 IN CASE OF FRONT PIPING A Refer to the installation manual of the outdoor unit for selection and restrictions for the piping between outdoor 1 EXTERIOR branches Not observing restrictions on the interconnecting piping may result in malfunctioning of the unit Pipe size selection and cutting position o
32. oor unit for cautions on brazing pipes Refer to Pipe size selection and cutting position of joints on page 10 for the cutting requirements ee 7 VA I Or 7 ie Iz Ti a LA 8 2 6 74 9 Liquid pipe accessory 1 supplied with the outdoor unit Liquid pipe field supply select the pipe length on site Liquid joint 1 Equalizer pipe 1 field supply refer to table 28 on page 12 Liquid reducer 1 Joint angle of 90 field supply refer to table 29 on page 12 Equalizer pipe 2 field supply refer to table 28 on page 12 Equalizer pipe field supply select the pipe length on site Equalizer accessory pipe 1 supplied with the outdoor unit Liquid joint 2 Equalizer joint Liquid pipe accessory 2 supplied with the outdoor unit Liquid pipe accessory 3 supplied with the outdoor unit o AFTER CONNECTION OF THE PIPING Follow the instructions in the paragraph After connection of the piping on page 5 IN CASE OF LOWER FRONT PIPING 1 EXTERIOR A GO NO Liquid joint 1 HP LP gas joint 1 To indoor unit Suction gas joint 1 Equalizer pipe Liquid joint 2 HP LP gas joint 2 Suction gas joint 2 O NOA 2 DIMENSIONS FOR INSTALLATION Dimensions for standard installation 198 181 152 Ee EN SAED ARN ao fF Q N a Liquid pipe Suction gas pipe HP LP gas pipe Equalizer pipe Bottom frame NO
33. pipe 5 field supply refer to table 30 on page 14 18 Suction gas joint 2 19 HP LP gas joint 2 20 HP LP gas pipe 5 field supply refer to table 32 on page 14 21 Joint 5 angle of 90 field supply refer to table 33 on page 14 22 Suction gas pipe 2 field supply refer to table 30 on page 14 23 HP LP gas pipe 2 field supply refer to table 32 on page 14 24 Suction gas accessory pipe 2 supplied with the outdoor unit 25 HP LP gas accessory pipe 2 supplied with the outdoor unit 26 Suction gas pipe 6 field supply refer to table 30 on page 14 27 Joint 3 angle of 90 field supply refer to table 31 on page 14 28 Joint 6 angle of 90 field supply refer to table 33 on page 14 29 HP LP gas pipe 7 field supply refer to table 32 on page 14 30 HP LP gas pipe 6 field supply refer to table 32 on page 14 31 Suction gas pipe 3 field supply refer to table 30 on page 14 32 HP LP gas pipe 3 field supply refer to table 32 on page 14 33 Suction gas accessory pipe 3 supplied with the outdoor unit 34 HP LP gas accessory pipe 3 supplied with the outdoor unit 4 INSTALLATION OF LIQUID PIPES AND EQUALIZER PIPES Cutting the field supplied equalizer pipes Use the following tables for standard installation refer to Dimensions for installation on page 13 lf dimensions differ from standard installation adjust the L dimension of the equalizer pipes 1 and 2 accordingly For L dimension of equalizer pip
34. pipe 1 field supply 6 Connection to HP LP gas reducer 1 7 No cutting for 18 24 Hp Connection piping Remove the knockout plate on the bottom frame Refer to the installation manual delivered with the outdoor unit Connect the suction gas and HP LP gas pipes as shown in the figure below Before connecting the pipes first connect the suction gas joint and the suction gas reducer 1 the HP LP gas joint and the HP LP gas reducers 1 and 2 Refer to the installation manual delivered with the outdoor unit for cautions on brazing pipes Keep the joint in a horizontal position see view A in the figure below Connect the HP LP gas reducer 1 by tilting it 450 and connect the HP LP gas reducer 2 see view A Refer to Pipe size selection and cutting position of the joint on page 3 for the cutting requirements 1213 1415 16 8 17 1 Suction gas accessory pipe 1 supplied with the outdoor unit 2 HP LP gas joint 3 Suction gas joint 4 Suction gas reducer 1 5 HP LP gas reducer 2 6 Suction gas reducer 2 7 HP LP gas reducer 1 8 Joint 4 angle of 90 field supply refer to table 10 on page 4 9 HP LP gas accessory pipe 1 supplied with the outdoor unit 10 HP LP gas pipe 2 field supply refer to table 19 on page 9 11 HP LP gas pipe 3 field supply refer to table 19 on page 9 12 Suction gas pipe field supply select the pipe length on site 13 HP LP gas pipe field supply select the pipe len
35. s need to be brazed Upsizing main pipe For units with total capacity of 24 32 Hp the suction gas reducer 3 has to be used Connect the reducer to the suction gas jointas pott shown in the figure below ms ooo 24 32 Hp 198 181 Table 5 A 300 mm standard Total capacity Pipe size 1 Liquid pipe of outdoor l TS 2 Suction gas pipe units Suction gas HP LP gas Liquid 3 HP LP gas pipe 18 Hp 22 2x1 0 1 2H O19 1x1 0 1 2H G9 5x0 80 O iam 20 24Hp 28 6x1 0 1 2H 19 1x1 0 1 2H 012 7x0 80 O epe 26 32Hp 028 6x1 0 1 2H 022 2x1 0 1 2H 12 7x0 80 O ee nnn a NOTE In case dimension A exceeds 300 mm extend the field Table 6 s 25 supplied interconnection piping between the joint and Total capacity Pipe size the outdoor unit of outdoor units Suction gas HP LP gas Liquid 18 22Hp 22 2x1 0 1 2H 19 1x1 0 1 2H 9 5x0 80 O 24 28 Hp G28 6x1 0 1 2H D19 1x1 0 1 2H G12 7x0 80 O 26 Hp 22 2x1 0 1 2H 19 1x1 0 1 2H 9 5x0 80 O 30 32 Hp 28 6x1 0 1 2H G22 2x1 0 1 2H 12 7x0 80 O a OD x minimum wall thickness temper grade type m Cut the pipe with a pipe cutter 1 Joint or reducer Cut in order to have a fitting depth of 15 mm 3 Field pipe Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 3
36. the HP LP gas reducer 1 by tilting it 50 and connect the HP LP gas reducer 2 see view A Unit A Unit B f f Connection to liquid pipe 1 5 field supply napa Qe 48 HP 2 Connection to liquid joint 1 Na a quid joint 1 5 i 3 Cutting position dm 4 Connection to liquid joint 2 5 No cutting for 34 Hp Refer to Pipe size selection and cutting position of joints on page 10 for the cutting requirements Connection piping m Remove the knockout plate on the bottom frame Refer to the installation manual delivered with the outdoor unit m Connect the liquid pipes and equalizer pipes as shown in the 18 5 10 20 212217 1 HP LP gas joint 1 2 Suction gas joint 1 3 Suction gas reducer 1 4 HP LP gas reducer 2 5 Suction gas pipe field supply Select the pipe length on site 6 Suction gas accessory pipe 1 supplied with the outdoor unit 7 HP LP gas accessory pipe 1 supplied with the outdoor unit 8 HP LP gas reducer 1 9 Suction gas reducer 2 10 HP LP gas pipe field supply select the pipe length on site 11 HP LP gas reducer 3 12 HP LP gas joint 2 13 Suction gas joint 2 14 Suction gas accessory pipe 2 supplied with the outdoor unit 15 HP LP gas accessory pipe 2 supplied with the outdoor unit 16 HP LP gas pipe 2 field supply refer to table 36 on page 16 17 Joint 6 angle of 90 field supply refer to table 33 on page 14 18 Suction gas reducer 3 19 HP LP gas
37. the pipe length on site ok oh Liquid accessory pipe 2 supplied with the outdoor unit o AFTER CONNECTION OF THE PIPING Connection piping between the outdoor and indoor unit All piping must be executed according to instructions in the installation manual of the outdoor unit and an air tight test must be performed after complete installation of the piping Insulation of joints N SN 7 N N a SG N A iss KS a N Step 1 Fit the insulation 1 around the reducer 2 and keep it in place with tape mm 3 Step 2 Fit the insulation 4 around the joint 5 and keep it in place with tape mm 6 without leaving a gap between the two insulated parts Step 3 Seal the seam between the insulation and the field piping insulation with tape mm 7 Step 4 Cover the insulated parts completely with tape mas without leaving any gaps 8 A z All required tape is field supply In case of indoor installation make sure that the tape is of the fireproof type in order to comply with local regulations Installation manual DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 IN CASE OF LOWER FRONT PIPING 3 INSTALLATION OF SUCTION GAS AND HP LP GAS PIPES 1 EXTERIOR Cutting the field supplied gas pipes Use the following tables for standard installation refer to Dimensions for installation on page 6 If the dimensions exceed these o
38. the pipe length on site 9 Liquid joint 2 10 Equalizer joint 11 Liquid accessory pipe 2 supplied with the outdoor unit 12 Liquid pipe 3 field supply select the pipe length on site 13 Liquid accessory pipe 3 supplied with the outdoor unit 4 AFTER CONNECTION OF THE PIPING Follow the instructions on After connection of the piping on page 10 Installation manual 17 DAIKIN BHFQ23P907 1357 Outdoor unit multi connection piping kit 4PW38477 1 NOTES DAIKIN EUROPE NV Zandvoordestraat 300 B 8400 Oostende Belgium Copyright Daikin 4PW3847 7 1
39. to table 15 on page 6 20 HP LP gas pipe 4 field supply refer to table 15 on page 6 21 Suction gas pipe 2 field supply refer to table 13 on page 6 22 HP LP gas pipe 2 field supply refer to table 15 on page 6 23 Suction gas accessory pipe 2 supplied with the outdoor unit 24 HP LP gas accessory pipe 2 supplied with the outdoor unit 4 INSTALLATION OF LIQUID PIPES AND EQUALIZER PIPES Cutting the field supplied equalizer pipes Use the following tables for standard installation refer to Dimensions for installation on page 6 If dimension differ from standard installation adjust the L dimension of the equalizer pipes 1 and 2 accordingly For L dimension of equalizer pipes 1 and 2 dimension B of the field supplied angled joint as in table 12 on page 5 has been taken into account If dimension B of the angled joint you use is different from that dimension B adjust the L dimension of the equalizer pipes 1 and 2 accordingly Table 17 Equalizer pipe Pipe 1 L mm Pipe 2 L mm 95 120 L Cutting liquid reducer 1 th 1 Connection to liquid pipe field supply me 2 Connection to liquid joint 20 32 Hp N3 3 Cutting position 2 4 No cutting for 18 Hp E Connection piping m Connect the liquid pipes and equalizer pipes as shown in the figure below Before connecting the pipes first connect the liquid joint and the liquid reducer 1 m Refer to Dimensions for installation on page 6
40. w to install the reducers m Suction gas pipe For 34 Hp connect the suction gas reducer 5 to the suction gas joint 1 as shown in the figure below For 36 48 Hp connect the suction gas reducer 4 to the suction gas joint 1 as shown in the figure below Dm ee B HP LP gas pipe For 38 48 Hp connect the suction gas reducer 5 to the HP LP gas joint 1 as shown in the figure below Os ooo m Using piping inbetween connection joints suction gas pipe For 40 48 Hp connect two times the suction gas reducer 5 to Top view 318 mm standard Liquid pipe HP LP gas pipe Equalizer pipe Bottom frame A 1 2 Suction gas pipe 3 4 5 2 DIMENSIONS FOR INSTALLATION Front view the suction gas joints 1 and 2 as shown in the figure below 1 2 3 2 i NOTE In case dimension A exceeds 318 mm extend the field cia supplied interconnection piping between the joint and the outdoor unit OT PS iere min AL fas 1 Suction gas joint 1 2 Suction gas reducer 5 4 Suction gas joint 2 IN CASE OF FRONT PIPING Cutting the field supplied gas pipes 3 Field supplied gas pipe 34 9 3 INSTALLATION OF SUCTION GAS AND HP LP GAS PIPES Use the following tables in case dimension A is 318 mm refer to Dimensions for installation on page 11 If dimension A exceeds 318 mm extend the L dimension of the gas 1 EXTERIOR pipes 1 3 and HP LP gas pipes 1 4
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