Safety Instructions This instrument was manufactured and tested according to the applicable technical standards. It complies with all the safety regulations as shipped from the factory. Installation and startup must be performed by skilled personnel. Failure to install and operate the unit in accordance with these instructions may result in damage or injury.
24 VDC vehicles Pin 4: B+ (Heater), 36 VDC heater power for freezer option on 36 VDC vehicles Pin 5: Power, (12.0 to 15.0 VDC) supplied from Curtis Model 1297 motor controller Pin 6: Data Input from Curtis Model 1297 motor...
4. OPERATION Being a communication device, Model 840 will operate with user intervention based on signals received from a Curtis Model 1297 motor controller. Upon initial power-up, the instrument will go through a self-diagnostic routine in which all display elements will be illuminated for 1 second and then blanked for 1 second.
5. TROUBLESHOOTING For any deviation in operation as described in Section 4, verify model number to ensure that the voltage rating of the unit matches the power supply and check connector seating for full engagement.
6. MAINTENANCE Model 840 is not serviceable in the field. Units returned to the factory within the warranty period (see inside backcover) without damage will be replaced without charge.
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This guarantee is limited to repair or replacement F.O.B. our factory. There is no further warranty or implied representation, guarantee, promise or agreement as to any Curtis Instruments product and/or component. Curtis Instruments, Inc., cannot assume responsibility or accept invoices for unauthorized repairs to its products and/or components, even though defective.
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CURTIS INSTRUMENTS, INC. 200 Kisco Avenue, Mt. Kisco, NY 10549 Tel. (914) 666-2971 • FAX (914) 666-2188 53027 REV A 10/01...