Specifications

3916067 01.13

3.3 Connection of the Proven Draft Switch and Stack Probe

The Proven Draft Switch (PDS) must be installed indoors, in the vertical position (pre-drilled knockouts face down).

 Mountthecontroluprighttoawallorotheratsurface.DoNOTlaythecontroldownormounthorizontally.

A Proven Draft Switch (PDS) must be used with the ADC100 control as a system safety device. The PDS monitors the

 pressureinsidethestackandsignalsthecontroltoshutdowntheapplianceifinsufcientdraftexists.Astackprobe 

senses the pressure read by the PDS and is connected via silicone tubing.

The silicone tubing supplied with the PDS should be connected to the NEGATIVE (-) port of the PDS. This is the bottom

port on the switch. The standard tube length is 6 feet. The distance can be extended up to 25 feet by using 1/4” rigid

plastic or copper tubing as temperature allows (not supplied).

3.4 Installation of the Chimney Probe

The probe must be installed between the appliance and the exhaust fan. If a damper is used in the system, the probe

should be installed between the appliance and damper.

 Locatetheprobeatleastadistancethree(3)ventdiametersawayfromanyelbow,teeordamper.Forreplace 

installations, the probe should be installed close to the fan inlet. See Fig. 5.

To produce an accurate pressure reading, theprobeshouldbeinstalledushwiththeinnerwallofthechimneyor 

 stack.Ifdoublewalledstackisused,theprobeshouldbeushwiththeinnermostwall.

NEGATIVE PRESSURE POR

Fig.3

DAMPER

CHIMNEY

PROBE

CHIMNEY

PROBE

Fig.4