T775R Replacement For W964F Aquatrol Panel With Floating Actuator - Honeywell T775 Series 2000 Application Manual

T775M2030 Replacement for W973A
Logic Panel (continued)
Component/Function
Thermostat
Discharge Sensor
Heating/Cooling Motor
Fan Start
Economizer
Outside Air Changeover
T775R Replacement for W964F
Aquatrol Panel with Floating
Actuator
L
1
N
1 120 V, 60 HZ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 JUMPER BETWEEN B AND D.
TERMINALS Y, T, AND G ARE NOT USED.
3
NOTE: The T775R Replacement for W964F Aquatrol Panel with Floating Actuator continues on the next page.
Table 2. T775M2030 replacement for W973A
W973A Logic Panel
T7067 Sensor A (Room) - C7130B1008.
C7046 Sensor B (Discharge) - C7046D1008.
M954 Series 90, 4-20 mA, 0-10 Vdc, or 2-12 Vdc motor may be used.
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).
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.
H205 Optional – SPDT Changeover (H705).
L N D C B A
2
1 2 3 Y
Fig. 44. W964F wiring connections (pre-existing Control).
T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
In this replacement application, the T775M2030 provides the
following, as described in Table 2.
T775M2030 Replacement
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.
3 2 1 4 4A 5
3
T G W R B
M944B
35
W964F
6 7 T2 T2 T3 T3
T7044A
T7043B
T7043A
M28013
63-7147—05