HM199 Datasheet | IES

Engineering sample data MODULE ASSEMBLY 2003 Nov 26 HM199 m o .c U 4 t e e h S a t a .D w Refrigeration control with audible w w condensor alarm and lockout INTEGRATED ELECTRONIC SOLUTIONS 1BUTLER DRIVE HENDON SA 5014 AUSTRALIA m o .c U 4 t e e h S a at .D w w w Integrated Electronic Solutions, Hendon, South Australia Engineering sample data Refrigeration control with audible condensor alarm and lockout CONTENTS 1 2 3 4 5 6 7 8 8.1 9 10 11 12 12.1 12.2 12.3 12.4 12.5 13 13.1 13.2 13.3 13.3.1 13.3.2 13.3.3 13.3.4 13.4 14 15 16 Features GENERAL DESCRIPTION QUICK REFERENCE DATA ORDERING INFORMATION CONNECTION DRAWING DIMENSIONS ASSEMBLY DRAWINGS FUNCTIONAL DESCRIPTION OM1894 Technical background IMPORTANT: ELECTRICAL SAFETY WARNING RATINGS CHARACTERISTICS CIRCUIT FUNCTION The refrigerator cabinet control circuit The evaporator control circuit The condenser alarm circuit Accuracy Failure table APPLICATION INFORMATION Application Check List Thermistor mounting considerations Heatsink and triac temperature and load considerations Thermal considerations Triac specifications Heatsink temperature rise Current rating Radio Frequency Interference DEFINITIONS3 IES INFORMATION DISCLAIMER 2003 Nov 26 2 Integrated Electronic Solutions, Hendon, South Australia Engineering sample data Refrigeration control with audible condensor alarm and lockout 1 Features HM199 evaporator which will not allow cooling to begin until the evaporator has reached a preset temperature above zero degrees, and all ice on the evaporator has melted. Also if the evaporator falls below - 10°C the pression cycle is concluded, to enforce defrosting of the evaporator. An audible alarm is controlled by a third thermistor mounted on the refrigerant condenser. If the accumulation of dust and...