Lochinvar CP-M Series, Инструкции по установке, пусконаладке и обслуживанию, Страница: 67 / 94

67
FIGURE 13.1 SETTING PARAMETERS
Operating screen:
H E A T I N G : S T A N D - B Y
> > > : 1 2 3 . 4
o
C ( 1 2 3 . 4
o
C )
Press [MENU]
Select "Parameter" using [◄] & [►]
M a i n M e n u
P a r a m e t e r
Press [ENTER]
Parameter menu:
I n s t a l l e r c o d e
0 0 0 0
Enter the 4-digit code with the [◄] & [►] and the
[▲] & [▼] buttons and select [ENTER]
The code will blink a few seconds and when entered
correctly, the following parameters will be displayed.
Menu A: Heating
A 1 S t e p m o d u l
1
Menu A: Heating
A 2 H E s o f f 1 3
4 o C
Menu A: Heating
A 3 H E s P r b 1 3
2 5 o C
Menu A: Heating
A 4 H E s c D i f 1 3
1 0 o C
Menu A: Heating
A 5 H E s l n t 1 3
6 0 S e c
Menu A: Heating
A 6 H E c O f f 3
4 o C
> > > Continued on next page < < <
This parameter sets the CH integration time. This is the time period over which
an average temperature is recorded in order to determine the firing rate.
This parameter sets the Cascade CH offset value. This is the value above the
setpoint temperature that each boiler in the cascade boiler can reach before
shutting down.
NOTE: The two codes are user defined and give access to the parameters
which can be viewed and modified (as detailed in
Table 13.1 )
This parameter activates the step modulation feature. Step modulation holds
the firing of the appliance at defined rates for pre-defied time periods. A
value of 0 disables this function, a value of 1 enables it.
This parameter sets the CH offset value. This is the value above the setpoint
temperature that the boiler can reach before shutting down.
This parameter sets the CH proportional band. This is the temperature range
below the setpoint temperature in which the boiler will modulate.
This parameter sets the CH differential. This is the temperature below the offset
temperature which the boiler must reach before the firing sequence will restart.