Commissioning Of The Options; Type Rm Fast Recooling System - Thermo Scientific VARIOKLAV 25T Operating Manual

INFORMATION
The mains plug socket of the sterilizer must be freely
accessible. In case of failures, it is used to disconnect the
sterilizer from mains.
Actuation of a current-operated e.l.c.b. system:
After long shutdown periods, the resistance of the ceramic insulation in the heating
elements can drop because of condensation, with the result that the actuation of a
current-operated e.l.c.b. system is possible.
Remedy:
♦ Supervised by an expert (electrician, service technician) conduct a
♦ Fill the feed water tank with feed water. Use only deionized or distilled
The steam sterilizer is now ready for use. The first sterilization cycle will use
approximately two litres of feed water.
The heat emanation of the sterilizer to the environment during the heating phase
depends on the heating power: approximately 25 % to 35% of the nominal heating
capacity.

10.5 Commissioning of the options

The Media temperature control, Exhaust air filtration, Water post-feed and Batch
documentation expansion options do not need to be commissioned separately.
They are ready for use when the benchtop sterilizer is delivered.

10.5.1 Type RM fast recooling system

Required connections
Decalcified cooling water or deionized water (or very soft tap water of no more than
5° dH (German hardness)), 0.5 bar minimum supply pressure, max. 6 bar, R ½" on-
site connection, max. 2 m away from unit, R ½" cooling water inlet at sterilizer.
Maximum demand 1.5 l/min, R ½" on-site stop valve and strainer required.
♦ Connect the enclosed pressurized water hose (2 m, R ½") to the cooling
♦ Check if the on-site cooling water supply is secured with a R ½" stop
♦ Connect the pressurized water hose to the on-site cooling water supply.
♦ Connect the disposal hose to the cooling water outlet of the sterilizer.
♦ Connect the disposal hose to the on-site disposal system.
To protect the tap water system, it may be necessary to install a return flow
inhibitor or system disconnector just upstream of the softening or deionizing facility
according to the regulations of the local public utility company (DIN 1988, Part 4 /
Technical Rules for Tap Water Installations, TRWI).
Please observe the maintenance and functioning controls pursuant to DIN 1988,
Part 8.
03/2007
10 Initial commissioning
sterilization cycle or test cycle on mains connection which is not
protected by a current-operated e.l.c.b. system.
water.
water inlet at the sterilizer.
valve and a strainer.
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