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T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS

35 63-7147—05

T775M2030 Replacement for W973A

Logic Panel (continued)

In this replacement application, the T775M2030 provides the

following, as described in Table 2.

T775R Replacement for W964F

Aquatrol Panel with Floating

Actuator

This replacement example illustrates how a T77R is

configured to replace a W964F Aquatrol Panel.

• Fig. 45 illustrates the wiring connections for the W964F

Aquatrol Panel.

• Fig. 46 and Table 4 on page 34 illustrate the wiring and

configuration of the T775R controller.

Fig. 44. W964F wiring connections (pre-existing Control).

NOTE: The T775R Replacement for W964F Aquatrol Panel with Floating Actuator continues on the next page.

Table 2. T775M2030 replacement for W973A

Component/Function W973A Logic Panel T775M2030 Replacement

Thermostat T7067 Sensor A (Room) - C7130B1008.

Discharge Sensor C7046 Sensor B (Discharge) - C7046D1008.

Heating/Cooling Motor M954 Series 90, 4-20 mA, 0-10 Vdc, or 2-12 Vdc motor may be used.

Fan Start Fan Start Relay If a relay is available, it can be used for fan control (e.g., 1 stage Heat and 2

stage Cool using the T775M2030).

Economizer M955 With the T775M2030 there are two modulating outputs. Therefore, two of the

three functions (Heat, Cool, or Economizer) are available to be used. The

example in Fig. 35 uses the Heat and Cool functions; no Economizer.

Outside Air Changeover H205 Optional – SPDT Changeover (H705).

L 54A4123ABCDN T3T3T2T276

T7044A

T7043A

T7043B

T123Y BRWG

M944B

W964F

120 V, 60 HZ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

JUMPER BETWEEN B AND D.

TERMINALS Y, T, AND G ARE NOT USED.

M28013

Honeywell T775A2009 User Manual

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