Air-Vac DRS24NC Installation Download Page 1

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Diffuser Heater Installation for DRS Units

Page 1

August, 2008

Diffuser Heater

Installation for DRS Units

Tools Needed: American Standard Allen Wrenches, Multi-Meter

30 Progress Avenue
Seymour, CT 06483
Tel: (203) 888-9900
Fax: (203) 888-1145

AIR-VAC ENGINEERING
COMPANY, INC.

www.air-vac-eng.com

ISO 9001:2000 Certified

Please note that a burned out heater could possibly cause other parts of the system to fail.

Perform these quick steps to ensure the new heater will not fail prematurely.

NOTE:

To determine whether a heater is good or not, check with a mulit-meter:
Test across the two power leads, 26.0

Ω +/− 5.0

(coil). Across the two thermocouple

leads should have continuity.

Power Leads

Thermocouple Leads

Summary of Contents for DRS24NC

Page 3: ...lacement for DRS24 25 Models 1 Solid State Relays are located in the right side of unit power module 2 Remove panel via four 4 screws 3 Open panel to the power module right to left Locate bad diffuser relay and replace Nozzle Relay Left Diffuser Relay Right Diffuser Relay ...

Page 4: ...for DRS24NC Models 1 Solid State Relays are located in the right side of unit power module 2 Open right box 3 Located inside are the relays Remove the protective plexiglass cover and the bad diffuser relay Power Module Right Box Nozzle Relay Left Diffuser Relay Right Diffuser Relay ...