elco TRIGON L PLUS - Hydraulics and Circulation Pumps

19
Installation
Hydraulics Circulation pumps
Pumpheaddiagram,boilertype60–70 Pumpheaddiagram,boilertype120–140
Pumpheaddiagram,boilertype100 Pumpheaddiagram,boilertype170–200
Boiler type Pump type Circulating water volume heat cell
(m
3
/h - l/min)
Residual head
(mH
2
O - mbar - kPa)
ΔT20 (K) ΔT25 (K) ΔT20 (K) ΔT25 (K)
60 1 x WILO PARA 8 2,4 - 40,6 1,9 - 32,5 3,0 - 300 - 30 5,2 - 520 - 52
70 1 x WILO PARA 8 2,8 - 46,7 2,2 - 37,4 1,5 - 150 -15 4,0 - 400 - 40
100 1 x WILO PARA 9 3,8 - 64,7 3,1 - 51,7 - 2,0 - 200 - 20
120 2 x WILO PARA 8 2x 2,4 - 40,6 2x 1,9 - 32,5 3,3 - 330 - 33 5,4 - 540 - 54
140 2 x WILO PARA 8 2x 2,8 - 46,7 2x 2,2 - 37,4 1,5 - 150 - 15 4,0 - 400 - 40
170 2 x WILO PARA 9 2x 3,8 - 64,7 2x 3,1 - 51,7 - 2,0 - 200 - 20
200 2 x WILO PARA 9 2x 3,8 - 64,7 2x 3,1 - 51,7 - 2,0 - 200 - 20
For single boiler installation the connection to a low velocity header and secondary circuit pump is strongly
suggested.
For installation of cascaded boilers the connection to a low velocity header and secondary circuit pump is
mandatory.
Temp di󰀨erential nominal
TheWILOPARA8or9circulationpump,whichisinstalledatthefactoryfortheboiler,operatescontinuouslyandadaptsits
pumpspeedtoheatrequirements(ΔT).
TheATGelectronic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.