elco THISION S PLUS User Manual

16
Installation
Hydraulics
Circulation pumps
Pump modulation
A number of functions are available for
the modulating boiler pump.
• None(Functionisswitched-o󰀨)
• Demand (Do not use this function)
• Boiler setpoint (Do not use this
function)
• Tempdi󰀨erentialnominal
• Burner output (Do not use this
function)
Temp di󰀨erential nominal
The LMS continues to control the
boiler’s output such that the boiler
temperature setpoint is maintained.
Pump speed control controls the boiler
pump’s speed in a way that the
parameterized nominal temperature
di󰀨erentialofboilerreturnandboiler
owismaintained.
Ifthee󰀨ectivedi󰀨erentialisgreater
thanthenominaldi󰀨erential,the
pump’s speed is increased, otherwise it
is decreased.
The pump’s speed is limited by the
parameterized minimum and maximum
speed.
Recommended settings:
Radiators 20K
Underoorheating 10K
Mixed systems 10K
System separation (LV 20K
header/Plate heat exchanger)
GRUNDFOS UPM3 25-70
Boiler type
Circulating water volume (T=20K) Residual head Energy consumption
l/min l/u mbar kPa PWM (%) Pmax pump
[W]
EEI
13 9,5 570 200 20 45 15 < 0,20
19 13,0 781 200 20 55 25 < 0,20
24 15,8 950 200 20 60 28 < 0,20
34 24,1 1444 200 20 75 55 < 0,20
35L* 24,6 1473 200 20 55 25 < 0,20
46* 32,3 1938 200 20 70 49 < 0,20
54* 38,0 2279 200 20 90 60 < 0,20
Combi 24 15,8 950 200 20 60 28 < 0,20
Combi 34 24,1 1444 200 20 80 57 < 0,20
* Note:
This boiler has to be connected to a
low velocity header and secondary
circuit pump.
Line no. Selection possibilities Factory setting
2317 Tempdi󰀨erentialnominal 20
1)
2320 Pump modulation Tempdi󰀨erentialnominal
2)
2321 Starting speed 100
2322 Pump speed min 45
2323 Pump speed max THI S PLUS 13: 45
THI S PLUS 19: 55
THI S PLUS 24 / Combi 24: 60
THI S PLUS 34 / Combi 34: 75
THI S PLUS 35L: 55
THI S PLUS 46: 70
THI S PLUS 54: 90
1)
Adjust value to hydraulic system
2)
Do not adjust this value
Minimum speed of the boiler pump
Values less than 45% only set in case
ofownoisesduringcommissioning.
In this case read new residual head
from chart and adjust the bypass
accordingly.
The use of a low velocity header or
plate heat exchangers can be set up to
min. 25% (OEM limitation).
Note:
Too low pump speeds can lead to
unfavorable temperature conditions
during ignition load and may result in
error messages.

elco THISION S PLUS Specifications

General

Model	THISION S PLUS
Category	Boiler
Fuel Type	Natural Gas, LPG
Installation	Wall-mounted
Heat exchanger material	Stainless Steel
Water Pressure	Max 6 bar
Available models	THISION S PLUS 35
Weight	34 kg to 36 kg