Watts Industries POWERS Accritem Controller 3 Technical Instructions Download Page 7

Page: 7 / 8

Figure 8.

Additional information on controller action and applications.

Continued

Operation

APPLICATION

HEATING

COOLING

MIXING

DIRECT Acting

Normally OPEN valve

Normally CLOSED valve

Hot piped to Normally OPEN

port of valve

Valve OPENS on air failure

Valve CLOSES on air failure

Valve opens to HOT flow

on air failure

REVERSE Acting

Normally CLOSED valve

Normally OPEN valve

Hot piped to Normally CLOSED

port of valve

Valve CLOSES on air failure

Valve OPENS on air failure

Valve opens to COLD flow

on air failure

ACTION:

Summary of Contents for POWERS Accritem Controller 3

Page 1: ...uthorities for additional local requirements WARNING WARNING Flush all pipes thoroughly before installation Installation and field adjustment are the responsibility of the installer WARNING Need for P...

Page 2: ...nse time Also see Figure 8 on page 7 Figure 1 Operation Instructions n 2 The sensitivity of the Accritem controller is adjusted by turn ing the restriction screw Figure 2 The restriction screw is fact...

Page 3: ...Both Air and Water Controllers To disassemble Refer to Parts Drawing and Figure 5 1 Remove knob 3 after loosening its set screw 2 Remove cover plate 2 3 Remove spring retainer screw 8 and lever sprin...

Page 4: ...ighten the knob set screw very firmly 8 Turn the adjusting knob to the desired control temperature for approximate calibration 9 Recalibrate as required after the controller is installed and connected...

Page 5: ...1 Stainless Steel 10 Cover Screw 030 041 030 041 6 Brass 11 O Ring Not used 047 050 1 Silicone Rubber 12 Retaining Ring 100 124 100 124 1 Phos Bronze 13 Valve 744 155 744 163 1 Phos Bronze 15 Valve Sp...

Page 6: ...744 107 Dotted line item not included Provides materials necessary to reduce the incoming air supply pressure to within the supply pressure range of the Accritem WATER Accessory Kit No 744 180 Dotted...

Page 7: ...e Normally CLOSED valve Hot piped to Normally OPEN port of valve Valve OPENS on air failure Valve CLOSES on air failure Valve opens to HOT flow on air failure REVERSE Acting Normally CLOSED valve Norm...

Page 8: ...on This expresswarranty is in lieu of and excludes all otherwarranties guarantees or representations express of implied There are no impliedwarranties oF merchantability or of fitness for a particular...