Honeywell CM737 User Manual

CM737
User instruction
13
3.3 Category 2 parameters: System Settings
Parameter
Para
meter
N:o
Factory Default Setting
Optional Setting
Display
Description
Display
Description
Summer heating in
OTC mode
1:SH
0
Summer heating
disabled
1 to 40
Minimum set point for the
heating and the pump will be
held on.
Economy function
2:SL
20
The outside
temperature at which
the heating will
switch off
10 to 30
The economy function will be
disabled if the setting for
summer heating is not 0
Economy function
3:Pd
10
Diff between outside
and calculated water
supply temperature
If the calculated water
supply temperature is not
greater than the outside
temperature by this amount
the heating will switch off.
3.4 Category 3 parameters: Bolier Settings
Parameter
Para
meter
N:o
Factory Default Setting
Optional Setting
Display
Description
Display
Description
Maximum central
heating setpoint 2)
1:CH
90
90°C or obtained
from the boiler
40 to 90
40°C to 90°C adjustment in
1°C steps
DHW setpoint 2)
2:HS
55
55°C or obtained
from the boiler
40 to 80
40°C to 80°C adjustment in
1°C steps
Supply water
temperature 3)
3:St
Actual
temp
Temperature
obtained from the
boiler (between 0°C
and 99°C)
N/A
Not applicable
Return water
temperature 3)
4:rt
Actual
temp
Temperature
obtained from the
boiler
N/A
Not applicable
DHW temperature
3)
5:Ht
Actual
temp
Temperature
obtained from the
boiler
N/A
Not applicable
Outside
temperature 4)
6:Ot
Actual
temp
Between -30°C and
99°C
N/A
Not applicable
Water pressure 3)
7:Pr
Actual
press
Between 0.0 bar and
4.0 bar
N/A
Not applicable
DHW storage
overnight
8:HO
1
DHW storage
enabled after last
period of day
0
DHW storage disabled after
last period of day
DHW storage
during HOLIDAY
9:HH
0
DHW storage
disabled during
HOLIDAY
1
DHW storage enabled during
HOLIDAY
Low capacity
control
10:LD
1
Not applicable
0
Not applicable

Honeywell CM737 Specifications

General

Brand	Honeywell
Model	CM737
Category	Control Panel
Language	English