Fujitsu Airstage UTP-RU01AH, Service Manual

Page: 21 / 246

01-15
Check Contents Judgement Present Status
Refrigerant Circuit : Name _________________, Address ________(00 99)
Conducted by
Service Tool
Degree of sub-cool at OU sub - cooler side should be,
(2 C Tshe 5 C).And,
Pulse value EEV3 should be,
Yes / No
Discharge refrigerant pressure should be,
363psi Pd 479psi(
Yes / No
Suction refrigerant pressure should be,
102psi Ps 174psi(
Yes / No
Discharge refrigerant temp. should be,
Discharge refrigerant superheat should be,
Yes / No
IU refg. superheat should be,
RB group SV (SBS & SVB1) should be ON AND
Pulse value IU EEV should be, EEV 1000P
Yes / No
Ps between Master & Slave OUs should be,
( Ps 29psi(0.2Mpa))
Yes / No
Air temperature of each RB group IU should be,
Tair c ooling
>
14.4 F(8 C)
Yes / No
No water fall from IU
No abnormal noise from IU
Yes / No
2.5MPa Pd 3.3MPa)
0.7MPa Ps 1.2MPa)
EEV3 400P
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
F( C)
( Tshd >18 F(10 C)
Tsc
EEV3 P
Pd Psi(MPa)
Ps Psi(MPa)
Td
Tshd
Tshe
SBS & SVB1 ON
IU EEV P
Ps Psi(MPa)
Tair c ooling
Tsc = Saturated liquid temperature of HPS - TH5
Tshd = TH1- Saturated liquid temperature of HPS
Tshe = TH24 - TH22
Tair c ooling = TH21 - Outlet Air temperature
Td = TH1
Pd = HPS
Ps = LPS
Reference mark of Service tool
Check Contents Judgement Present Status
Refrigerant Circuit : Name _________________, Address ________(00 99)
Test-run operation
Heating mode
Conducted by
Service Tool
Discharge refrigerant pressure should be,
Suction refrigerant pressure should be,
Discharge refrigerant temperature should be,
Discharge refrigerant superheat should be,
Degree of sub cool (at IU side) should be,
7.2 F 12.6 F
RB group SV (SBD1 & SVB2) should be ON
Refrigerant superheat (at OU side) should be,
Pd between Master & Slave OUs should be,
T
OUHE
at each OU connected in series should be,
Air temperature of each RB group IU should be,
363psi Pd 479psi (2.5MPa Pd 3.3MPa)
44psi Ps 174psi (0.3MPa Ps 1.2MPa)
Td 212 F (100 C) AND
Tshd > 18 F(10 C)
Tsc 7 ) AND
(4
3.6 F Tshe1& Tshe2 9 F(2 C Tshe1& Tshe2 5 C)
T
OUHE
>9 F(5 C)
Ps 29psi (0.2MPa))
Tair heating
>
27 F (15 C)
Tsc = Saturated liquid temperature of HPS - TH22
Tshd = TH1- Saturated liquid temperature of HPS
Tshe1 = TH7 - Saturated vapor temperature of LPS
Tair heating = TH21 - Outlet Air temperature
Reference mark of Service tool
Yes / No
Yes / No
Yes / No
Yes / No
Yes / No
Yes / No
Yes / No
Tsc
Pd Psi(MPa)
Ps Psi(MPa)
Td
Tshd
Tshe
SVD1 & SVB2 ON
Ps Psi(MPa)
Tair heating
T
OUHE
Tshe2 = TH8 - Saturated vapor temperature of LPS
T = TH4 - TH9
OUHE 1
T = TH4 - TH10
OUHE 2
Test-run operation
Cooling mode
1-3-5 Operation check sheet
Td 212 F(100 C).And,
(3.6 F Tshe 9 F)
9 F TSC 36 F(5 C Tsc 20 C) AND
Tsc