Installation and Use

43
GB
VACUUM PUMP
SERVICE CONNECTION
GAS VALVE
SERVICE
CONNECTION
LIQUID
VALVE
COCK
PROTECTION
CAP
2. connect the vacuum pump to the small service valve in the external unit
three-way valve;
3. once you have opened the corresponding valves on the pump, start the
latter and leave it running. Create the vacuum for approximately 20/25 min-
utes;
4. make sure the pressure gauge reads -0.101 MPa (-760 mmHg);
5. shut the cocks on the pump and turn it off . Check that the needle on the
pressure gauge does not move for approximately 5 minutes. If the needle
moves, this means that air is seeping into the system, and you must check
all connections are tight enough and that the piping connections were all
performed correctly; then repeat the procedure from step 3;
6. disconnect the vacuum pump;
7. open the cocks on the two-way and three-way valves fully,
8. screw the cap tightly to the service outlet, ensuring that it is well sealed;
9. after having tightened all the caps, check their entire circumference for gas
leaks.
WARNING:
Always protect the connection cables and pipes to prevent their being
damaged, as they could cause gas leaks when damaged (personal injury
from cold burns)
MONOSPLIT INSTALLATION TECHNICAL SPECIFICATIONS
OUTDOOR UNIT MODEL
MONO UNIV 25
MD0-O
MONO UNIV 35
MD0-O
MONO UNIV 50
MD0-O
Liquid pipe diameter inches 1/4 1/4 1/4
Gas pipe diameter inches 3/8 3/8 1/2
Maximum length of pipe with standard charge m5 5 5
Maximum pipe length* m20 20 25
Standard charge kg 0,8 0,95 1,25
Extra gas recharge g/m 20 20 20
Maximum diff erence in height between internal and external unit** m8 8 10
Type of refrigerant R410A R410A R410A
MULTISPLIT INSTALLATION TECHNICAL SPECIFICATIONS
OUTDOOR UNIT MODEL
DUAL 55
XD0B-O
TRIAL 80
XD0B-O
QUAD 110
XD0B-O
PENTA 121
XC8B-O
Liquid pipe diameter inches
2x 1/4 3x 1/4 4x 1/4 5x 1/4
Gas pipe diameter inches
2x 3/8 3x 3/8 4x 3/8 4x 3/8+1x1/2
Maximum pipe length for single internal unit
with standard charge
m
555 5
Maximum pipe length for single internal unit* m
20 25 30 30
Maximum total length of piping (sum of internal units)* m
30 45 60 75
Standard charge kg
1,7 2,4 3 3,6
Extra gas recharge g/m
15 15 10 10
Maximum diff erence in height between internal and external unit
(internal unit just above the external unit)**
m
15 15 15 15
Maximum diff erence in height between internal and external unit
(internal unit just below the external unit)**
m
10 10 10 10
Maximum diff erence in height between internal units m
10 10 10 10
Type of refrigerant
R410A R410A R410A R410A
(*) at the maximum distance, effi ciency is approximately 90%.
(**) with a diff erence in height over 5 m, we recommend you include a trap.