Utica Boilers UB95M-200 参照ガイド

17

minimum fan 

speed dHW

2250 to 6000

22 to 60

 (100’s of rpm)

initial reading:

• Use this parameter to increase the mini-
mum  input  of  the  boiler.  increasing  fan 
speed  increases  boiler  input;  decreasing 
fan speed decreases input.

P

.  

1

7

after 2 to 3 seconds:

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Setting

• NEVER set outside values shown at left.

19

ignition fan 

speed

3000 to 3600

30 to 36   

(100’s of rpm)

initial reading:

•  Use  this  parameter  to  increase  the  mini-
mum  input  of  the  boiler  during  ignition.   

•  Increasing  fan  speed  increases  boiler  in-
put;  decreasing  fan  speed  decreases  input. 

• SET ONLY at recommended (default) values.

P

.

1

9

after 2 to 3 seconds:

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Setting

20

Postpump 

time CH

0  

(10 seconds)  

1 to 99

(minutes)

0 to 99

initial reading:

Parameter  20  is  the  length  of  time  the 
boiler circulator continues to operate after 
completing a central heating cycle.

P

.  

2

0

after 2 to 3 seconds:

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Setting

21

Postpump 
time dHW

0 to 306          

seconds

0 to 30

(times 10.2 

seconds)

initial reading:

Parameter  21  is  the  length  of  time  the 
boiler circulator continues to operate after 
completing a dHW cycle.

P

.

2

1

after 2 to 3 seconds:

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Setting

22

CH modula-

tion differen-

tial On

0 to 36°F

0 to 36

initial reading:

•  Differential  may  also  be  referred  to  as 
“hysteresis”

P

.  

2

2

after 2 to 3 seconds:

•This  is  the  temperature  the  boiler  water 
must  drop  below  setpoint  temperature  to 
turn the boiler on.

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Setting

23

CH modula-

tion differen-

tial OFF

0 to 18°F

0 to 18

initial reading:

•  Differential  may  also  be  referred  to  as 
“hysteresis”

P

.

2

3

• This is the temperature the boiler water 
must not must rise above setpoint temper-
ature to turn the boiler off.

after 2 to 3 seconds:

• As outlet temperature increases, the con-
trol  module  reduces  boiler  input.  if  tem-
perature  continues  to  rise  with  boiler  with 
minimum  input,  the  boiler  will  shut  down 
when  the  temperature  reaches  setpoint 
temperature plus Parameter 23.

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Setting

24

dHW modu-

lation differ-

ential On

-2° to 54°F

-2 to 54

initial reading:

•  Differential  may  also  be  referred  to  as 
“hysteresis”

P

.  

2

4

• This is the temperature boiler water must 
drop  below  setpoint  temperature  to  turn 
the  boiler  on.  Boiler  outlet  water  setpoint 
temperature is 180°F during dHW mode.)

after 2 to 3 seconds:

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Setting

25

dHW modu-

lation differ-

ential OFF

-6° to 54°F

-6 to 54

initial reading:

•  Differential  may  also  be  referred  to  as 
“hysteresis”

P

.

2

5

• This is the temperature boiler water must 
rise  above  setpoint  temperature  to  turn 
the  boiler  off.  (as  outlet  temp.  increases, 
the control module reduces boiler input. if 
temperature  continues  to  rise  with    boiler 
at minimum input, the boiler will shut down 
when  the  temperature  reaches  setpoint 
temperature plus Parameter 23.)

after 2 to 3 seconds:

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Setting