Operation
Slim Jim Idrocompresso User manual
page 24
Machine cool-down
As the steam boiler is isolated, the temperature in the steam boiler will drop very slowly when heating
is turned off and the machine is otherwise untouched. It will take about 3.5 hrs to cool down to its ECO
temperature of 70°C. The coffee boilers, which are not isolated, will cool down faster and will reach
ECO temperature (50°C) after 1.5-2 hrs.
Figure 20. Graph showing typical cool-
down of the boilers when the machine is turned to “NO HEAT”
when it is at operational temperature.
If it is needed to cool down the machine quickly, turn the heating circuits to OFF and open both steam
taps until no more steam escapes from the tips. That will cool down water in the steam boiler to 100°C
but be aware that there will be some latent heat within the stainless steel of the boiler and heat
exchanger. Pull all brew levers down for a few minutes to have cold water running via the heat
exchanger towards the groups.
0
10
20
30
40
50
60
70
80
90
100
110
120
130
0
30
60
90
120
150
180
210
te
m
p
er
a
tu
re
(
°C)
time (minutes)
Typical cool down
times of Slim Jim
steamboiler
coffeeboiler
ECO coffee
ECO steam
