White Rodgers 8A18Z-2 manual

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Table of contents for the manual

  • Page 1

    To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete. Do not use on circuits exceeding specified volt- age. Higher voltage will damage control and could cause shock or fire hazard. Printed in U.S.A. 8A18Z-2 Evaporative Cooler Control FAILURE TO [...]

  • Page 2

    2 N P2 F2 L1 R W Y G LO HI L2 P2 F2 P1 120V 120V 120V 240V 240V 240V Fan connections Pump connections Line connections Low voltage transformer Pump relay Fan speed relay Low voltage thermostat connections Fan timer relay 8A18Z-2 Figure 1. Panel assembly SPECIFICA TIONS The 8A18Z-2 Evaporative Cooler Control consists of three relays and a low voltag[...]

  • Page 3

    3 INST ALLA TION (cont’d) 5. Select an appropriate location for mounting the con- trol. Position the case on a smooth flat surface in a vertical position only (with electrical knockouts down). Mount the case using flat washers and screws (not provided) through the four mounting holes in the back of the case. Install conduit, then run wiring and i[...]

  • Page 4

    READ ALL INSTRUCTIONS CAREFU LLY BEFORE INSTALLING OR OPERATI NG THIS CONTROL The 1F51-619 lo w voltage thermostat is designed to operate with the White-Rodgers 8A18Z -1 Evaporative Cooler Control. For versatility, the thermostat sub-base has a System Switch that lets you select VENT, COOL, or OFF positions, while the Fan Switch offers the selectio[...]

  • Page 5

    _____________________________________INSTALLATION______________________________________ Attaching Sub-Base to Wall 1. Route w ire from cooling equi pment to thermostat location and pull wires through hol e in wall so that 6 in. of cable protrudes. 2. Pull wires through opening near center of sub-b ase and connect wires beneath proper terminal screw[...]

  • Page 6

    If you need further information about this product, please write to White-Rodgers Division, Emerson Electric Co. 9797 Reavis Road St. Louis, MO 63123-5398 Attention: Technical Service Department[...]