Liebherr GGU 1550 Premium - Manual (Page 25)

48 49
Temperature stability and consistency:
NF X15. 140
All laboratory refrigerators and freezers
are checked in the state-of-the-art
Liebherr development facilities using the
procedure NF X 15-140 for measuring
temperature stability. This involves meas-
uring the temperature at nine different
points on the appliance interior.
Gradient H0- : 1.8 K (+ 0.9 K / – 0.9 K deviation from
the set temperature
Max. fluctuation: 1.0 K
A
ABS frame .................................... 32
ActiveGreen ..................................... 6
Air distribution system ................ 11, 39
B
Bakery standard .............................. 19
Bar handle ...................................... 23
Baskets .......................................... 32
Branding, chest freezers .................. 35
Branding, drinks .............................. 27
C
Calibration function ......................... 41
Casters .......................................... 34
Ceiling lighting:
Catering & bakery ...................... 14
Laboratory ................................. 43
Condenser ..................................... 29
Cooling system ............................... 21
D
Data memory .................................. 40
Display ........................................... 24
Door ................................... 16, 25, 44
Door hinges,
interchangeable .................. 18, 26, 46
Door open alarm ........................ 13, 42
E
Energy efficiency ............................... 7
Explosion protection ........................ 47
Evaporator surface ares ............. 10, 38
F
Fans.......................................... 10, 38
Fan cut-out function ........................ 21
Feet ............................................... 16
Flip-top lid ....................................... 33
Foot pedal ...................................... 16
G
Gastronorm .................................... 19
Glass frame .................................... 32
Grip handle ..................................... 22
Grid shelves ......................... 14, 26, 44
H
Hot-gas condensate evaporation:
Gastronomy & bakery ................... 9
Laboratory ................................. 37
Hot-gas defrosting:
Catering & bakery ........................ 9
Laboratory ................................. 37
Hot-gas frame heater ...................... 29
Housing:
Drinks........................................ 23
Impulse sales chest storage
appliances ................................. 33
I
Infrared interface ....................... 12, 40
Inner container:
Catering & bakery ................. 17,19
Drinks........................................ 24
Laboratory ................................. 45
Insulation............................. 15, 29, 43
Key words index
13
8,0 °C
7,5 °C
7,0 °C
6,5 °C
6,0 °C
5,5 °C
5,0 °C
4,5 °C
4,0 °C
3,5 °C
3,0 °C
2,5 °C
2,0 °C
t1 t2 t3 t4 t5 t6 t7 t8 t9
Probes
H0 = Gradient
max (0
mj
+ U
mj
) = mean value warmest probe + expanded measurement uncertainty
min (0
mj
– U
mj
) = mean value coldest probe – expanded measurement uncertainty
The evaluation of air temperatures of the LKPv and LGPv models according to NF X 15-140 using a PT 100 temperature probe with 25 g copper thermal mass
shows the following results:
LKPv 6522
Results according to NF X 15-140
8,0 °C
7,5 °C
7,0 °C
6,5 °C
6,0 °C
5,5 °C
5,0 °C
4,5 °C
4,0 °C
3,5 °C
3,0 °C
2,5 °C
2,0 °C
t1 t2 t3 t4 t5 t6 t7 t8 t9
Probes
Set temperature Average probe temperature
Set temperature Average probe temperature
Gradient H0- : 1.8 K (+ 0.9 K / – 0.9 K from
set temperature)
Max. fluctuation: 1.0 K
LKPv 6520
H0= Gradient
max(0m4+Um4) = average warmest measurement channel + expanded measurement uncertainty
min(0m6-Um6) = average coldest measurement channel – expanded measurement uncertainty
Gradient H0- : 2.3 K (+1.4 K / – 0.9 K from
set temperature)
Max. fluctuation: 1.6 K
LKPv and LGPv laboratory appliances with Profi-Controller