# CW5200 T-503 thermostat set to constant temperature mode

**URL:** <https://forum.cloudray.com/t/cw5200-t-503-thermostat-set-to-constant-temperature-mode/248>\
**Category:** Industrial Chiller\
**Created:** [April 12, 2021, 7:49am UTC](https://forum.cloudray.com/t/cw5200-t-503-thermostat-set-to-constant-temperature-mode/248 "2021-04-12T07:49:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Technician](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/technician/32/15_2.png) [@Technician](https://forum.cloudray.com/u/Technician)\
**Post date:** [April 12, 2021, 7:49am UTC](https://forum.cloudray.com/t/cw5200-t-503-thermostat-set-to-constant-temperature-mode/248/1 "2021-04-12T07:49:06Z")

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1. Hold down the “▲” and “SET” keys simultaneously

2. Wait until 5, 6 seconds, the interface displays 0

3. Press “▲” to set the password “8” (factory setting is 8)

4. Press the “SET” key to enter the menu setting, at this time the interface displays F0

5. Press the “▲” key to adjust F0 to F3 (F3 represents the control mode)

6. Press the “SET” key to enter the setting, the interface displays 1

7. Press “▼” to change “1” to “0” (1 stands for smart mode, 0 stands for constant temperature mode) 8. At this time, the chiller is already in constant temperature mode

8. Press “SET” to confirm and return to the menu setting

9. Press “▼” to adjust F3 to F0

10. Press the “SET” key to enter the set temperature state

11. Adjust the water temperature to 25°C by pressing “▲” and “▼” (assuming a constant temperature of 25 degrees)

12. Finally press “RST” to confirm, save and exit