Navien NHB-055, Руководство по обслуживанию

Страница: 59 / 147

NHB Service Manual 59 Version 1.0
(3) Operation Conditions Settings
1. While in <Special Parameter mode>, press the [+] / [-] button and then press the [Mode] button once when “3. OPR” is displayed on the
front panel.
2. Whenever the [+] / [-] button is pressed, it increases / decreases the operation condition and flashes at intervals of 500msec. If the
condition is not changed for 3 seconds, it works at the displayed operation condition.
a) NORMAL Operation condition → b) 1-Stage MIN → c) DHW 1-Stage MAX →
d) 2-Stage MIN → e) DHW 2- Stage MAX → f) CH 1st Stage MAX →
g) CH 2nd Stage MAX → a) NORMAL Operation condition) ……
3. If the [Reset] button is pressed once, then it returns to the <Special Parameter mode>. (Displayed as the previously entered item “3. OPR”)
4. If there is no button input for 3 hours, then the system automatically returns to the <Normal Operation mode>.
Mode Description Display
(a) NORMAL Operation condition Operated in a Normal operation mode
(b) 1st Stage MIN Operation
condition
Operated in a 1-Stage MIN operation mode
(c) 1st Stage MAX Operation
condition
Operated in a 1-Stage MAX operation mode
(d) 2nd Stage MIN Operation
condition
Operated in a 2-Stage MIN operation mode
(e) 2nd Stage MAX Operation
condition
Operated in a 2-Stage MAX operation mode