4.3 Use and change of tools
The freeze clamps are designed for pipes with an
e x t e r n a l d i a m e t e r o f 2 . 1 / 8 “ o r 6 0 m m . S p e c i a l
reduction inserts (fig. 1) are required for freezing
p i p e s w i t h a s m a l l e r d i a m e t e r. G e n e ro u s l y c o a t
t h e c o n t a c t s u r f a c e s w i t h h e a t t r a n s f e r c o m -
pound to avoid insulation by-passing and achie-
ve optimum thermal conductivity and conducting
c a p a c i t y b e t w e e n t h e f re e z e c l a m p s ( a ) , re d u c -
tion inserts (b/d) and pipes (fig. 2).
N O T E :
H e a t t r a n s f e r c o m p o u n d i s re q u i re d f o r
the best possible results!
Treat the precision-made, accurate-to-size reduc-
t i o n i n s e r t s a n d f re e z e c l a m p s w i t h c a re ! C l e a n
them after use with a dry cloth and replace in the
insets provided to prevent damage.
Rags soiled with heat transfer compound can be
disposed of without problem as normal waste.
Important:
T h e f re e z e c l a m p s a n d p i p e s m u s t b e k e p t o u t
of draughts during the freezing process!
5.
Taking out of service
After the work has been completed, pull out the
appliance plug from the mains and allow the fre-
e z e c l a m p s a n d h o s e s t o d e f r o s t , b e f o r e y o u
remove them from the pipe to clean them.
Caution:
do not kink or stretch hoses!
6.
Directions for use
T h e
R O F R O S T T U R B O I I
i s a p l u g - i n c o m p a c t
a p p l i a n c e . I t o p e r a t e s w i t h a h e r m e t i c a l l y s e a -
led cooling circuit on the compression principle.
Continuous operation over several hours or days
presents no problems.
The simple clamping system of the freeze clamps
ensures a firm attachment to the pipe.
For attachment, press the clamp and the appro-
priate inset against the pipe which is to be frozen
a n d s e c u r e w i t h t h e f i x i n g s c r e w. R e m o v e a n y
superfluous heat transfer compound.
Caution:
tighten the fixing screw only by hand!
In addition, it is recommended that the screw be
greased, as this enables the clamps to be deta-
ched more easily after the freezing process.
Working near a wall or in a constrained position
is made possible by the favourable width across
c o r n e r s . T h e f re e z e c l a m p s a re c o n n e c t e d t o a
f l e x i b l e , d i ff u s i o n re s i s t a n t m o n o - h o s e s y s t e m .
As a result, the
ROFROST TURBO II
is extreme-
ly handy, and the 2.5 m long hoses also ensure an
ample working area.
Important:
There can be a temperature difference from dis-
play (L) to display (R) during freezing; this, howe-
v e r, i s n o r m a l l y c o m p e n s a t e d f o r i n t h e m i n u s
range.
In addition, exter nal factors may also play a role,
e.g.:
-
variable initial temperatures of the respective
pipes to be frozen
-
variable pipe diameters
-
variable contacting of the freeze clamp to the
pipe
-
adverse effect of draughts
S w i t c h o n t h e a p p l i a n c e o n l y a f t e r b o t h f re e z e
clamps are securely attached to the pipes which
a re t o b e f ro z e n . T h e c e n t r a l h e a t i n g s y s t e m o r
the pump must be switched off in due time to stop
the water circulation in the pipes.
The metal parts of the freeze clamps reach a tem-
perature of approx. -30°C during the freezing pro-
cess. To prevent frost-bite, the freeze clamps may
only be handled using suitable thermally insula-
ted gloves.
R e - o p e n t h e c i rc u i t o n l y a f t e r t h e t e m p e r a t u re
has reached -18°C and the period stated in the
t a b l e ( a p p ro x i m a t e v a l u e s ) h a s e l a p s e d ( f i g . 4 ) .
The values stated are approximate values, which
w e re d e t e r m i n e d a t a n a m b i e n t t e m p e r a t u re o f
22°C.
7.
Maintenance
The
ROFROST TURBO II
is designed for use on
construction sites and is therefore contained in
a robust sheet steel case. Nevertheless, handle
it carefully. The technical components inside the
appliance are sensitive to rough treatment. As a
result, never drop the appliance or allow it to fall
over.
Should, contrary to expectations, a technical fault
occur in spite of careful handling, please contact
the dealer or the manufacturer directly.
T h e re f r i g e r a t i o n c y c l e m a y o n l y b e o p e n e d b y
qualified personnel of the ROTHENBERGER
WERKZEUGE AG.
When the ROTHENBERGER heat transfer com-
pound has been used up, a further supply can be
ordered quoting order no. 6.2291.
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