Discharge Air Cool Setpoint Adjustment
• Single Zone VAV units will require traditional zone heating (if heat installed) and cooling setpoints that are used on single speed units in addition to a new setpoint: Discharge Air Cool Setpoint limit. Discharge
Air Cool Setpoints will be customer selectable via a potentiometer (DACR) adjacent to the RTOM with a
range of 40- 70°F.
• The table below lists the discharge air cool setpoints on the DACR.
Note: The recommended setting is 50°F.
Table 12. Discharge air cool setpoints (DACR)
Setpoint (°F) | Voltage (Vdc) | Setpoint (°F) | Voltage (Vdc) |
40 | <0.1 | 56 | 1.7 |
41 |
0.2 |
57 | 1.75 |
42 | 0.3 | 58 | 1.83 |
43 | 0.45 | 59 | 1.9 |
44 | 0.55 | 60 | 1.95 |
45 | 0.7 | 61 | 2 |
46 | 0.8 | 62 | 2.05 |
47 | 0.95 | 63 | 2.1 |
48 | 1.05 | 64 | 2.13 |
49 | 1.15 | 65 | 2.17 |
50 | 1.25 | 66 | 2.21 |
51 | 1.3 | 67 | 2.27 |
52 | 1.35 | 68 | 2.3 |
53 | 1.45 | 69 | 2.35 |
54 | 1.55 | 70 | >2.4 |
55 | 1.65 |
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.