Configuring the Sequence of Operation (SeqOpera) - Johnson Controls - 24-9890-1397 - T612DFH-4 - T612DFH-4+PIR - T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability

T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability Installation Guide

Brand
Johnson Controls
Product name
T612DFH-4 and T612DFH-4+PIR Thermostat Controllers with Fan Control and Occupancy Sensing Capability
Document type
Installation Guide
Document number
24-9890-1397
Document revision
B
Revision date
2021-01-07
Product status
Discontinued
Language
English

Choose the appropriate sequence of operation using Table 1 or Table 2. The modes presented are user-dependent on the sequence of operation selected. For two-pipe applications using a changeover sensor, choose the selection option (0): Cooling Only. Changeover occurs between Cooling Only and Heating Only. See Figure 1 through Figure 6 for sequence of operation examples.

Table 1. Selection Options for Sequence of Operation in Two-Pipe Applications
Selection Option Control Curve Terminal Numbers Used (See Table 1 and Figure 1)
On/Off Control Floating Control
(0): Cooling Only See Figure 1.

10: Normally Open (N.O.) Cooling

11: Normally Closed (N.C.) Cooling

10: Open Cooling

11: Closed Cooling

(1): Heating Only See Figure 2.

10: N.O. Heating

11: N.C. Heating

10: Open Heating

11: Closed Heating

(2): Cooling and Reheat See Figure 3.

6 and 7: Reheat

10: N.O. Cooling

11: N.C. Cooling

6 and 7: Reheat

10: Open Cooling

11: Closed Cooling

(3): Heating and Reheat See Figure 4.

6 and 7: Reheat

10: N.O. Heating

11: N.C. Heating

6 and 7: Reheat

10: Open Heating

11: Closed Heating

Table 2. Selection Options for Sequence of Operation in Four-Pipe Applications
Selection Option Control Curve Terminal Numbers Used (See Table 1 and Figure 1)
On/Off Control Floating Control
(0): Cooling Only See Figure 1.

10: N.O. Cooling

11: N.C. Cooling

10: Open Cooling

11: Closed Cooling

(1): Heating Only See Figure 2.

8: N.O. Heating

9: N.C. Heating

8: Open Heating

9: Closed Heating

(2): Cooling and Reheat See Figure 3.

6 and 7: Reheat

10: N.O. Cooling

11: N.C. Cooling

6 and 7: Reheat

10: Open Cooling

11: Closed Cooling

(3): Heating and Reheat See Figure 4.

6 and 7: Reheat

8: N.O. Heating

9: N.C. Heating

6 and 7: Reheat

8: Open Heating

9: Closed Heating

(4): Cool/Heat Four-Pipe See Figure 5.

8: N.O. Heating

9: N.C. Heating

10: N.O. Cooling

11: N.C. Cooling

8: Open Heating

9: Closed Heating

10: Open Cooling

11: Closed Cooling

(5): Cool/Heat Four-Pipe and Reheat See Figure 6.

6 and 7: Reheat

8: N.O. Heating

9: N.C. Heating

10: N.O. Cooling

11: N.C. Cooling

6 and 7: Reheat

8: Open Heating

9: Closed Heating

10: Open Cooling

11: Closed Cooling

Figure 1. Cooling Only, Two- or Four-Pipe Applications
Figure 2. Heating Only, Two- or Four-Pipe Applications
Figure 3. Cooling with Reheat, Two- or Four-Pipe Applications
Figure 4. Heating with Reheat, Two- or Four-Pipe Applications
Figure 5. Heating/Cooling, Four-Pipe Applications
Figure 6. Heating/Cooling with Reheat, Four-Pipe Applications