13
9 TEST RUNNING
Operate according to "key points for test running" on the electric
control box cover.
CAUTION
●
Test running can not start until the outdoor unit has been
connected to the power for 12 hours.
●
Test running can not start until all the valves are affirmed open.
●
Never make the forced running .(Or the protector sits back,
danger will occur.)
A[kg]
B[m
3
]
≤
critical thickness
10 PRECAUTIONS ON REFRIGERANT
LEAKAGE
This heat pump adopts inncouous and nonflammable refrigerant. The
locating room of the HP should big engough that any refrigerant
leakage is unable to reach critical thickness.So certain esssential
action can be taken on time.
1) Critical thickness------the Max. thickness of Freon without any harm
to person.
2) Refrigerant critical thickness: 0.44[kg/m
3
] for R410A.
●
Confirm the critical thickness through follow steps, and take
necessary actions.
●
Calculate the sum of the charge volume (A[kg]) Total
Refrigerant volume of 10HP=factory refrigerant volume +
superaddition.
●
Calculate the indoor cubage (B[m
3
]) (as the minimum cubage.
●
Calculate the refrigerant thickness.Counter measure against
over high thickness
3) Install mechanical ventilator to reduce the refrigerant thickness
under critical level. (ventilate regularly).
4) Install leak alarm facility related to mechanical ventilator if you can
not regularly ventilate.
10
11
1 Power supply for the main PCB(CN250)
2 Port for pressure sensor(CN36)
3 Port for sunction temperature sensor(CN4)
4 Port for discharge temperature sensor(CN8)
5.1 Port for outdoor temperature sensor(CN9)
5.2 Port for condenser outlet temperature sensor(CN9)
6.1 Port for high pressure switch(CN6)
6.2 Port for low pressure switch(CN6)
10 Port for electrical expansion value(CN22)
11 Port for power supply(CN41)
12 Power supply for hydro-box
control board(CN6)
13 PFC control port(CN63)
14 Reserved(CN64)
15 Port for 4-way value(CN65)
16 Port for eletric heating tape(CN66)
17 PTC control(CN67)
18 Reserved(CN68)
19 Port for down fan(CN19)
20 Port for up fan(CN17)
21 Power supply port for module(CN70\71)
22 Communication port for IPDU(CN201)
23 Port for voltage check(CN205)
24 Refrigerant recovery button(SW1)
25 Check button(SW2)
1
24
2
25
3 4 5.1 5.2 6.1
6.2
7
13
12
14
15
16
17
18
19
21 20
22
23
PCB C
3-phase 12~16kW
Summary of Contents for SHERPA S2 E 12
Page 101: ...262482A ...
