LLZ-AC Fa'asologa Ta'ai Compressors
“
Fa'amatalaga
- Numera Fa'ata'ita'i: LLZ – A/C
- Puipuiga i totonu: E
- Sapalai Voltagu lautele: F
- Locked Rotor Current: G
- Lubricant Type and Nominal Charge: H
- Fa'aaisa Fa'amaonia: I
Fa'atonuga o le Fa'aaogaina o Mea
Fa'apipi'i ma Au'aunaga
O le faʻapipiʻiina ma le tautuaina o le compressor e tatau ona ave
out by qualified personnel only. Follow the provided instructions
and adhere to sound refrigeration engineering practices for
fa'apipi'i, fa'atonu, tausiga, ma le tautua.
Fa'aoga Taiala
O le compressor e tatau ona faʻaaogaina mo lona faʻamoemoega fuafuaina ma
within its scope of safety regulations. Ensure compliance with
EN378 or other applicable local safety requirements. The compressor
cannot be connected to a nitrogen gas pressure outside the range of
0.3 to 0.7 bar.
Taulimaina Faatonuga
The compressor must be handled with caution, especially when in
a vertical position. Avoid any rough handling that may damage the
compressor.
Feso'ota'iga Fa'aeletise
Refer to the wiring diagram with pump-down cycle for proper
electrical connections. Use ring connect screw terminals in the C
terminal box type according to the provided instructions.
Fesili e Fai soo (FAQ)
Q: What refrigeration systems are the LLZ scroll compressors
talafeagai mo?
A: The LLZ scroll compressors are suitable for refrigeration
systems using approved refrigerants as specified in the manual.
Q: Can the compressor be connected to any nitrogen gas
omiga?
A: No, the compressor must be connected within the specified
nitrogen gas pressure range of 0.3 to 0.7 bar.
Q: Who should handle the installation and servicing of the
compressor?
A: Na'o tagata agavaa e tatau ona taulimaina le fa'apipi'i ma
servicing of the compressor to ensure proper setup and
tausiga.
“`
Faatonuga
Danfoss scroll compressors LLZ – A/C
ABC
DE
A: Numera fa'atusa
B: Numera Fa'asologa
F
C: Technical number D: Manufacturing year
G
E: Internal protection
H
F: Sapalai voltagu tele
I
G: Loka le taimi o le rotor
Ole taimi aupito maualuga ole faagaoioiga
H: Lubricant ituaiga ma tau fa'atatau
I: Fa'aaisa Fa'aaisa
Fa'asa'o vevela (°C)
Fa'asa'o vevela (°F)
Fa'asa'o vevela (°F)
Fa'atapula'a o galuega
LLZ – R404A / R507 – Non Injection
Tu'u le vevela vevela (°C)
65
60
55
50
45
40
20K superheat
35
30
25
20
15
10
5 -45 -40 -35 -30 -25 -20 -15 -10 -5
Saturated suction temperature (°C)
LLZ – R448A/R449A – E leai se tui
Fua Fa'asa'o Fa'asa'o °C
70
60
50
40
SH10K
30
20
RGT 20°C
10
0
-45
-40
-35
-30
-25
-20
-15
-10
-5
Fua Suction Suction °C
R455A – LLZ with LI
Evaporating temperature (°F)
-67 -58 -49 -40 -31 -22 -13 -4 70
5 14 23
65
60
S.H. = 10K
55
50
45
RGT = 20°C
40
35
30
25
20
15
10
5
0
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
vevela fa'asa'o (°F) vevela fa'asa'o (°C)
LLZ – R448A/R449A ma le LI (Tdis tapula'a 120°C)
Fua Fa'asa'o Fa'asa'o °C
70
60
50
SH10K
40
RGT 20°C
30
20
10
0
-45
-40
-35
-30
-25
-20
-15
-10
-5
Fua Suction Suction °C
LLZ – R452A – Le tui
Fua Fa'asa'o Fa'asa'o °C
70
60
50
SH10K
40
RGT 20°C
30
20
10
0
-45
-40
-35
-30
-25
-20
-15
-10
-5
Fua Suction Suction °C
R455A – Non injection
Evaporating temperature (°F)
-67 -58 -49 -40 -31 -22 -13
-4
70
5 14 23
65
60
55
50
45 S.H. = 10K (18°F)
40
35
30
25 RGT = 20°C (68°F)
20
15
10
5
0
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
vevela fa'asa'o (°F) vevela fa'asa'o (°C)
Fa'asa'o vevela (°C)
Fa'asa'o vevela (°C)
R454C – LLZ with LI
Evaporating temperature (°F)
-67 -58 -49 -40 -31 -22 -13
-4
70
5 14 23
65
60
55
S.H. = 10K
50
45
RGT = 20°C
40
35
30
25
20
15
10
5
0
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
R454C – Non injection
Evaporating temperature (°F)
-67 -58 -49 -40 -31 -22 -13
-4
70
5 14 23
65
60
55
S.H. = 10K (18°F)
50
45
40
35 RGT = 20°C (68°F)
30
25
20
15
10
5
0
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
OE-000029
R454A – Non injection
Evaporating temperature (°F)
-67 -58 -49 -40 -31 -22 -13
-4
70
5 14 23
65
60
55
Max Tc is 55°C for LLZ034T2
50
45
40 35
S.H. = 10K (18°F)
30
25
20
15
RGT = 20°C (68°F)
10
5
0
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
Danfoss OE-000207
Fa'asa'o vevela (°F)
-67 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0
-55
R454A – LLZ withLI
Evaporating temperature (°F)
-58 -49 -40 -31 -22 -13
-4
5 14 23
Max Tc is 55°C for LLZ034T2 S.H. = 10K (18°F)
RGT = 20°C (68°F)
-50 -45 -40 -35 -30 -25 -20 -15 -10
-5
Fa'asao vevela (°C)
32 41
0
5
50 59 158 149 140 131 122 113 104 95 86 77 68 59 50 41 32
10 15
Danfoss OE-000208
Fa'apipi'i ma le fa'aleleia o le compressor e na'o tagata faigaluega fa'apitoa. Mulimuli i fa'atonuga nei ma faiga fa'ainisinia fa'aa'aisa lelei e fa'atatau ile fa'apipi'iina, fa'atonuina, tausiga ma le tautua.
Fa'asa'o vevela (°F)
The compressor must only be used for its Under all circumstances, the The compressor is delivered under The compressor must be
designed purpose(s) and within its scope of EN378 (or other applicable local nitrogen gas pressure (between 0.3 and handled with caution in the
talosaga (silasila i le "faatapula'a o galuega").
safety regulation) requirements 0.7 bar) and hence cannot be connected vertical position (maximum
Consult Application guidelines available from must be fulfilled.
as is; refer to the «assembly» section for offset from the vertical : 15°)
cc.danfoss.com
fa'amatalaga atili.
© Danfoss | Fofo o le Tau | 2025.04
8510283P01AB – AN261343021873en-000501 | 1
Fa'asa'o vevela (°C)
Faatonuga
Tolu vaega (Fa'ata uaea ma le taamilosaga pamu i lalo)
PULEGA LELEI
F1
F1
KM KA
KA
KS LP
L1 L3 L2 Q1
KA KS
A1 A3
180s A2
TH
PM
T1 HPs
KM
T2 T3
KS
M
DGT
KM
KA
LLSV
KS
Ata uaea ma le taamilosaga pamu i lalo
Feso'ota'iga eletise
CT
STRT
Mama fa'afeso'ota'i fa'amau fa'ailoga C ituaiga pusa fa'amau
tulei
tulei
tulei
1 Folasaga
O nei fa'atonuga e fa'atatau ile LLZ compressors scrolls fa'aoga mo faiga fa'a'aisa. Latou te tuʻuina atu faʻamatalaga talafeagai e uiga i le saogalemu ma le faʻaogaina tatau o lenei oloa.
2 Taulimaina ma teuina
· Uu ma le faaeteete le compressor. Fa'aaogā 'au fa'apitoa i totonu o le afifiina. Fa'aoga le fa'a'u si'i compressor ma fa'aoga meafaigaluega si'i talafeagai ma saogalemu.
· Teu ma felauai le compressor i se tulaga sa'o.
· Teu le compressor i le va o le -35°C ma le 70°C / -31°F ma le 158°F.
· Aua ne'i fa'aalia le compressor ma le afifiina i timuga po'o le siosiomaga pala.
3 Fuafuaga saogalemu a'o le'i fa'apotopotoina
Never use the compressor in a flammable atmosphere. · Mount the compressor on a horizontal flat
luga e itiiti ifo i le 7° fa'ata'atia. · Fa'amautinoa e fetaui le sapalai eletise
the compressor motor characteristics (see nameplate). · When installing a compressor for R452A, R404A/ R507, R448A/R449A, R454C, R455A, R454A, use equipment specifically reserved for HFC refrigerants which was never used for CFC or HCFC refrigerants. · Use clean and dehydrated refrigeration-grade copper tubes and silver alloy brazing material. · Use clean and dehydrated system components. · The piping connected to the compressor must be flexible in 3 dimensions to dampen vibrations. · The compressor must always be mounted with the rubber grommets supplied with the compressor. 4 Assembly
· Fa'asa'oloto lemu le fa'amauina o le nitrogen e ala i va'a lafoa'i ma suction.
· Fa'afeso'ota'i le compressor i le faiga i se taimi vave e aloese ai mai le fa'aleagaina o le suau'u mai le susū ambient.
· Aloese mai mea e ulu atu i totonu o le masini a'o tipi faagaau. Aua ne'i vili pu i mea e le mafai ona aveese ai pupuni.
· Do not exceed the maximum tightening torque
for rotolock connections
So'oga Rotolock 1″ Rotolock
1″ 1/4 Rotolock 1″ 3/4 Rotolock
Malosi fa'amau 80 Nm±10Nm 90 Nm±10Nm 110 Nm±10Nm
· Connect the required safety and control devices. When the schrader port, if any, is used for this, remove the internal valve. 5 Leak detection
Aua lava nei oomiina le taamilo i le okesene po o le ea mago. E mafai ona tupu ai se afi po'o se pa. · Aua le fa'aogaina le vali e iloa ai le liki. · Fa'atino se su'ega su'esu'e le leak i le mae'a
faiga. · Ole mamafa ole su'ega ole itu e le tatau ona sili atu ile 31
pa / 450 psi. · A maua se liki, toe lipe le liki ma
toe fai le su'eina o le liki.
6 Fa'amama le vai
· Aua le fa'aogaina le compressor e aveese ai le masini.
· Fa'afeso'ota'i se pamu mama i itu uma e lua o le LP & HP.
· Pull down the system under a vacuum of 500 µm Hg (0.67 mbar) / 0.02 inch Hg absolute.
· Aua ne'i fa'aogaina se megohmmeter pe fa'aogaina foi le malosi i le compressor a'o i lalo ole vacuum aua e ono afaina ai totonu.
7 Feso'ota'iga eletise
· Switch off and isolate the main power supply. · All electrical components must be selected as per
local standards and compressor requirements. · Refer to page 1 for electrical connections details.
For three phase applications, the terminals are labeled T1, T2, and T3. · Danfoss scroll compressors will only compress gas while rotating counter-clockwise (when viewed from the compressor top). Three-phase motors, however, will start and run in either direction, depending on the phase angles of the supplied power. Care must be taken during installation to ensure that the compressor operates in the correct direction. · Use ø 4.8 mm / #10 – 32 screws and ¼” ring terminals for the power connection with ring connect screw terminal (C type). Fasten with 3 Nm torque.
· Fa'aaogā le sikulima e fa'afeso'ota'i le komipi i le eleele.
8 Faatumu le faiga
· Taofi pea le compressor e tape. · Taofi le tau o le pusaaisa i lalo ifo o le mea ua faailoa mai
tapula'a totogi pe a mafai. I luga atu o lenei tapulaa; puipuia le compressor mai lologa-tua vai i se taamilosaga pamu-lalo po'o le suction laina accumulator. · Aua ne'i tu'ua le fa'atumu fa'atumu e feso'ota'i i le ta'amilosaga.
Fa'ata'ita'iga compressor Tapula'a tau fa'aaisa
LLZ013-015-018
4.5 kilokalama / 10 lb
LLZ024-034
7.2 kilokalama / 16 lb
9 Fa'amaonia a'o le'i fa'atonuina
Fa'aoga masini saogalemu e pei o le su'ega oona ma le alavai fesoasoani fa'ainisinia e tusa ai ma tulafono fa'alotoifale ma fa'alotoifale fa'atatau ma tulaga saogalemu. Ia mautinoa o lo'o fa'agaioiina ma fa'atulaga lelei.
Siaki e le sili atu le maualuga o le mamafa o le fa'aoga o so'o se vaega o le masini. · O se ki maualalo-oomi e fautuaina e aloese mai ai
galuega mamafa maualalo.
Fa'atonuga maualalo mo R404A/R507 1.3 pa (atoa) / 19 psia
Fa'atonuga maualalo mo R452A
1.2 pa (atoa) / 17.6 psia
Fa'atonuga maualalo mo R448A/R449A 1.0bar (atoa) / 14.5psia
Minimum setting forR454C
1.0bar (atoa)/14.5 psia
Minimum setting forR455A
1.0bar (atoa)/14.5 psia
Minimum setting forR454A
1.1bar (atoa)/16 psia
· Fa'amautinoa o feso'ota'iga eletise uma o lo'o fa'amau lelei ma fa'amalieina tulafono fa'alotoifale.
· A mana'omia se fa'avevela afi, e tatau ona fa'aosoina ia le itiiti ifo i le 24 itula a'o le'i amataina ma fa'aola pe a uma ona tapuni umi.
10 Amataina
· Aua ne'i amataina le compressor pe a leai se pusaaisa e molia.
· Aua ne'i tu'uina atu so'o se paoa i le compressor se'i vagana ua matala alatotoa o le susua ma le fa'amalo, pe a fa'apipi'i.
· Energize the compressor. It must start promptly. If the compressor does not start, check wiring
2 | AN261343021873en-000501 – 8510283P01AB
© Danfoss | Fofo o le Tau | 2025.04
Faatonuga
conformity and voltage on terminals. · Eventual reverse rotation can be detected by
following phenomena; the excessive noise, no pressure differential between suction and discharge, and line warming rather than immediate cooling. A service technician should be present at initial start-up to verify that supply power is properly phased and that the compressor is rotating in the correct direction. For LLZ compressors, phase monitors are required for all applications. · If the internal overload protector trips out, it must cool down to 60°C / 140°F to reset. Depending on ambient temperature, this may take up to several hours.
11 Siaki i le compressor o lo'o ta'avale
Siaki le ata ma voltagu. Fua o amps ma volts i le taimi o le taʻavale e tatau ona ave i isi vaega i totonu o le eletise, ae le o totonu o le pusa eletise compressor. · Siaki le vevela tele suction e faʻaitiitia ai le lamatiaga o
slugging. · Observe the oil level in the sight glass (if
provided) for about 60 minutes to ensure proper oil return to the compressor. · Respect the operating limits. · Check all tubes for abnormal vibration. Movements in excess of 1.5 mm / 0.06 in require corrective measures such as tube brackets. · When needed, additional refrigerant in liquid phase may be added in the low-pressure side
as far as possible from the compressor. The compressor must be operating during this process. · Do not overcharge the system. · Never release refrigerant to atmosphere. · Before leaving the installation site, carry out a general installation inspection regarding cleanliness, noise and leak detection. · Record type and amount of refrigerant charge as well as operating conditions as a reference for future inspections.
12 Tausiga
O le mamafa i totonu ma le vevela o luga e matautia ma e ono mafua ai se manu'a tumau. E manaʻomia e tagata faʻapipiʻi ma faʻapipiʻi tomai ma meafaigaluega talafeagai. O le vevela o le paipa e ono sili atu i le 100°C / 212°F ma e mafai ona mafua ai le mu tuga.
Ia fa'amautinoa e fa'atino asiasiga fa'avaitaimi e fa'amautinoa ai le fa'atuatuaina o faiga ma pei ona mana'omia e tulafono fa'alotoifale. Ina ia puipuia fa'afitauli o le compressor e feso'ota'i i le faiga, e fautuaina le mulimulita'i fa'avaitaimi: · Fa'amautinoa o lo'o fa'aogaina masini saogalemu ma
faatulaga lelei. · Ia mautinoa o loʻo liki le masini. · Siaki le ata o lo'o iai nei compressor. · Faʻamaonia o loʻo faʻaogaina le faiga i se auala
consistent with previous maintenance records and ambient conditions. · Check that all electrical connections are still
adequately fastened. · Keep the compressor clean and verify the
absence of rust and oxidation on the compressor shell, tubes and electrical connections. · Acid / moisture content in system and oil should be checked regularly.
13 – Fa'amaonia
Fa'asalalauina i taimi uma le numera fa'ata'ita'iga ma le numera fa'asologa i so'o se tagi filed e uiga i lenei oloa. E ono fa'aleaogaina le fa'amaonia o oloa i tulaga nei: • Le'i iai se fa'ailoga igoa. · Suiga i fafo; aemaise le viliina,
u'u, vae gau ma fa'ailoga te'i. · Ua tatala pe toe fa'afo'i le fa'amaufa'ailoga. · Ele, vai po'o le vai e iloa ai le vai i totonu
compressor. · Use of a refrigerant or lubricant not approved by
Danfoss. · So'o se 'ese'ese mai fa'atonuga fautuaina
fa'atatau ile fa'apipi'iina, fa'aogaina po'o le tausiga. · Fa'aoga i talosaga feavea'i. · Fa'aoga i totonu o le ea pa. · Leai se numera fa'ata'ita'i po'o se numera fa'asologa na tu'uina atu fa'atasi ma le tagi fa'amaonia.
14 Lafoaiina
Ua fautuaina e Danfoss ia compressor ma compressor oil e tatau ona toe fa'aaogaina e se kamupani talafeagai i lona nofoaga.
© Danfoss | Fofo o le Tau | 2025.04
8510283P01AB – AN261343021873en-000501 | 3
4 | AN261343021873en-000501 – 8510283P01AB
© Danfoss | Fofo o le Tau | 2025.04
Pepa / Punaoa
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Danfoss LLZ-A-C Series Scroll Compressors [pdf] Faatonuga LLZ - R404A - R507, LLZ - R448A-R449A, LLZ - R452A, LLZ-A-C Series Scroll Compressors, LLZ-A-C Series, Scroll Compressors, Compressors |