© MHG Heating Ltd
73
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
Web www.mhgheating.co.uk
010711
(Tn) return temp
limitation
2285
Derivative action
time (Tv) return temp
lim
10 s
2290
Bypass pump
switching differential
6 °C
2291
Bypass pump control
According to boiler
return temp
2300
Frost protection for
plant boiler pump
Off
2310
TR function
On
2315
Temperature stroke
min
------- °C
2316
Temperature stroke
max
------- °C
2330
Nominal power boiler
50 kW
2331
Nominal power first
stage
30 kW
Cascade
Line no.
Data point
Value
Unit
3510
Cascade control
strategy
Early on, late off
3511
Power range, lower
limit (Pmin)
20 %
3512
Power range, upper
limit (Pmax)
85 %
3530
Release limit
producer sequence
25
°C*mi
n
3531
Reset limit producer
sequence
20
°C*mi
n
3532
Restart lock time
30
s
3533
Switch-on delay lag
heat source
1 min
3534
Forced time basic
stage during
producer turn on
0 s
3540
Time to automatic
producer sequence
switching
10 h
3541
Exclude at automatic
producer sequence
switching
none
3544
Leading producer
Producer 1
3550
Protective startup
cascade pumpe
Off
3560
Cascade return
setpoint minimum
8 °C
3561
Cascade return
setpoint minimum
OEM
8 °C
3562
Cascade return flow
On
3570
Actuator running
120
s