NW Global Vending – TECHNICAL MANUAL
This document was produced by MARK AC for the exclusive use of the technical personnel in the after-sales service.
. No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING
. All rights reserved.
New dispenser “KORO” 07/10/2005 page 26 / 42
OPEN-TOP BOILER
Boiler temperature °C Value in ohm Allowed tolerance
0 35875 +/-7 ohm
25 12000 +/- 4 ohm
50 2900 ,,
85 1475 ,,
90 1260 ,,
100 963 ,,
CALDAIA
NOTE: The open-top is made of special thermoplastic material and coated with insulat
ing material for more efficient heat
insulation; two overheating protections are fitted for safety.
1) Dry operation protection.
2) Anti-boiling protection.
In the event of failure to the control system and boiler without water, thermostat 1 is triggered
at approximately 125°C and
disconnects the power supply; in order to reactivate everything the malfunction must be identified and the thermostat must be
reset by pressing the central red button.
In the event of failure to the control system and the boiler full, upon reaching boiling temperature, as the steam exits from tube A
it touches and triggers the two thermostats 2.
Proceed as above to reset them; see specific chapter to identify the type of malfunction.
See relevant section in the functional unit
manual for details, photos and complete description: BOILERS
The internal temperature control (in both boilers) is by means of an NTC type electronic probe fitted with an internal 12K ohm (±
4 ohm) resistance at a temperature of 25°C.
SIDE VIEW WITHOUT PROTECTIVE CASING –
OPEN-TOP BOILER COMPARTMENT
DETAIL OF SOLENOID VALVES AND OVERHEATING PROTECTIONS
To Next Page
Loading...
Need help?
General
