System Heat Pump Outdoor Unit - MegaFrio
System Heat Pump Outdoor Unit - MegaFrio System Heat Pump Outdoor Unit - MegaFrio
Refrigerant piping installation ◆ The Amount of Refrigerant The calculation of the additional charge should take account of the length of pipe. A B CRUN1008T0 charge = 10.0kg CRUN458S0 charge = 3.5kg Additional charge (kg) = x + Total liquid pipe (m): Ø12.7mm x + Total liquid pipe (m): Ø9.52mm x + Total liquid pipe (m): Ø6.35mm x + Total liquid pipe (m): Ø15.88mm 0.2(kg/m) CF(kg) (Correction Factor) Total amount(kg) WARNING = Regulation for refrigerant leakage(in Europe) : the amount of refrigerant leakage should satisfy the following equation for human safety. ❐ If the above equation can not be satisfied, then follow the following steps. - Selection of air conditioning system: select one of the next 1. Effective opening part Installation 2. Reconfirmation of outdoor unit capacity and piping length 3. Reduction of the amount of refrigerant 4. 2 or more security device installation of alarm for gas leakage - Change indoor unit type : installation position should be over 2m from the floor (Wall mounted type → Cassette type) - Adoption of ventilation system : choose ordinary ventilation system or building ventilation system - Limitation in piping work : design for earthquake-proof and prevention against thermal stress 28 Outdoor Unit + 0.12(kg/m) 0.06(kg/m) 0.025(kg/m) CRUN458S0 : CF = 1.0 CRUN1008T0 : CF = 4.9 A B Total amount of refrigerant in the system Volume of the room at which indoor unit of the least capacity is installed A A B C X c d e 3 B 4 B 5 B a B Outdoor Unit(CRUN1008T0) Indoor Unit A: ø15.88, 60m B: ø9.52, 20m C: ø12.7, 20m 1 Additional Charge = A x 0.2 + B x 0.06 + C x 0.12 + (a+b+c+d+e) x 0.025 + CF = 60 x 0.2 + 20 x 0.06 + 20 x 0.12 + (10 x 5) x 0.025 + 4.9 = 21.75 (kg) b 0.3 ( kg / m 3 ) 2 B a: ø6.35, 10m b: ø6.35, 10m c : ø6.35, 10m d: ø6.35, 10m e: ø6.35, 10m
Branch pipe Fitting A A Y branch Header Insulator (included with kit) Horizontal plane B B Viewed from point A in direction of arrow Liquid and gas pipe joints A Refrigerant piping installation A To Outdoor Unit B To Branch Piping or Indoor Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) C Within +/- 10° Insulator for field piping A To outdoor unit B To indoor unit Facing upwards • There is no limitation on the joint mounting configuration. • If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint, the connecting section should be cut with a pipe cutter. • Branch pipe should be insulated with the insulator in each kit. Tape (field supply) • The indoor unit having larger capacity must be installed closer to than smaller one. • If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint, the connecting section should be cut with a pipe cutter. Pipe cutter • When the number of pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches. Installation Manual 29 ENGLISH
- Page 1 and 2: System Heat Pump Outdoor Unit INSTA
- Page 3 and 4: Safety Precautions Safety Precautio
- Page 5 and 6: Install the air conditioner accordi
- Page 7 and 8: Do not install the outdoor unit at
- Page 9 and 10: Cautions before the test run Turn o
- Page 11 and 12: Combination with indoor and Outdoor
- Page 13 and 14: Installation Space Individual Insta
- Page 15 and 16: Collective / Continuous installatio
- Page 17 and 18: Installation Location of anchor bol
- Page 19 and 20: Refrigerant piping installation A T
- Page 21 and 22: Refrigerant piping system ◆ Y bra
- Page 23 and 24: ◆ Header Method CRUN458S0 Example
- Page 25 and 26: ◆ Combination of Y branch/header
- Page 27: ◆ Indoor Unit Connection 50m H A
- Page 31 and 32: Airtight Test and Evacuation (1) Ai
- Page 33 and 34: Electrical Wiring Areas of Caution
- Page 35 and 36: Transmission and Power Lines 1) Tra
- Page 37 and 38: ◆ Example Connection of Transmiss
- Page 39 and 40: ◆ The Procedure of Automatic Addr
- Page 41 and 42: Group Number Setting for Indoor Uni
- Page 43 and 44: ◆ Position of rotary switch on th
- Page 45 and 46: Test Run Checks Before Test Run 1 2
- Page 47 and 48: Self-Diagnosis Function Error Indic
- Page 49 and 50: Position of the LED01Y in inverter
- Page 51 and 52: Piping Diagram CRUN458S0 4way valve
- Page 53 and 54: Preparation of Piping Appendix Main
- Page 55 and 56: HEAT INSULATION Appendix 1. Use the
- Page 57 and 58: 3. Grouped drain piping Appendix 1)
- Page 59 and 60: Indoor unit A B C D E F G H I J K L
- Page 61 and 62: Prior to power on Outdoor unit Indo
- Page 63 and 64: MANUALE D’INSTALLAZIONE MODELLO N
- Page 65 and 66: Precauzioni di sicurezza Precauzion
- Page 67 and 68: Installare il condizionatore d’ar
- Page 69 and 70: Non installare l’unità esterna s
- Page 71 and 72: Avvertenze per l’esecuzione dei t
- Page 73 and 74: Combinazione con le unità interne
- Page 75 and 76: Spazio necessario attorno all’uni
- Page 77 and 78: Installazione multipla e installazi
Refrigerant piping installation<br />
◆ The Amount of Refrigerant<br />
The calculation of the additional charge should take account of the length of pipe.<br />
A<br />
B<br />
CRUN1008T0 charge = 10.0kg<br />
CRUN458S0 charge = 3.5kg<br />
Additional charge (kg)<br />
= x<br />
+ Total liquid pipe (m): Ø12.7mm x<br />
+ Total liquid pipe (m): Ø9.52mm x<br />
+ Total liquid pipe (m): Ø6.35mm x<br />
+<br />
Total liquid pipe (m): Ø15.88mm 0.2(kg/m)<br />
CF(kg)<br />
(Correction Factor)<br />
Total amount(kg)<br />
WARNING<br />
=<br />
Regulation for refrigerant leakage(in Europe)<br />
: the amount of refrigerant leakage should satisfy the following equation for human safety.<br />
❐ If the above equation can not be satisfied, then follow the following steps.<br />
- Selection of air conditioning system: select one of the next<br />
1. Effective opening part Installation<br />
2. Reconfirmation of outdoor unit capacity and piping length<br />
3. Reduction of the amount of refrigerant<br />
4. 2 or more security device installation of alarm for gas leakage<br />
- Change indoor unit type<br />
: installation position should be over 2m from the floor (Wall mounted type → Cassette type)<br />
- Adoption of ventilation system<br />
: choose ordinary ventilation system or building ventilation system<br />
- Limitation in piping work<br />
: design for earthquake-proof and prevention against thermal stress<br />
28 <strong>Outdoor</strong> <strong>Unit</strong><br />
+<br />
0.12(kg/m)<br />
0.06(kg/m)<br />
0.025(kg/m)<br />
CRUN458S0 : CF = 1.0<br />
CRUN1008T0 : CF = 4.9<br />
A B<br />
Total amount of refrigerant in the system<br />
Volume of the room at which indoor unit of the least capacity is installed<br />
A<br />
A<br />
B<br />
C X<br />
c d<br />
e<br />
3 B 4 B 5 B<br />
a<br />
B<br />
<strong>Outdoor</strong> <strong>Unit</strong>(CRUN1008T0)<br />
Indoor <strong>Unit</strong><br />
A: ø15.88, 60m<br />
B: ø9.52, 20m<br />
C: ø12.7, 20m<br />
1<br />
Additional Charge = A x 0.2 + B x 0.06 + C x 0.12<br />
+ (a+b+c+d+e) x 0.025 + CF<br />
= 60 x 0.2 + 20 x 0.06 + 20 x 0.12<br />
+ (10 x 5) x 0.025 + 4.9<br />
= 21.75 (kg)<br />
b<br />
0.3 ( kg / m 3 )<br />
2<br />
B<br />
a: ø6.35, 10m<br />
b: ø6.35, 10m<br />
c : ø6.35, 10m<br />
d: ø6.35, 10m<br />
e: ø6.35, 10m