Worcester GREENSTAR HIGHFLOW 440CDI ERP Installation, Commissioning And Servicing Instructions

FAULT FINDING AND DIAGRAMS
Greenstar Highflow CDi
ErP
- 6720818077 (2016/04)46
7.4 Protection function
Internal boiler
temperature
between
8°C & 5°C
Boiler automatic
frost function
(monitors internal boiler
primary temperature)
Internal boiler
temperature
below 5°C
Internal boiler
temperature
rises above 9°C
Pump runs
Pump switches off
after a 3 minute
overrun period
Internal boiler
temperature
rises above 12°C
Central heating
demand switches
off
Pump switches off
after pump
overrun period
Central heating
demand is activated
Pump runs upto 3 minutes
to dissipate heat from
the boiler into the system
End of boiler demand
(central heating, preheat
or domestic hot water)
AUTOMATIC INTERNAL FROST FUNCTION
PUMP OVERRUN FUNCTION
A central heating demand
activated, pump runs
normally
Pump runs 5 seconds
every 24hrs from
last time pump ran
No central heating
demand after
a 24hr period
PUMP ANTISEIZE FUNCTION
6720648665-36.1Wo

Worcester GREENSTAR HIGHFLOW 440CDI ERP Specifications

General

Model	Greenstar Highflow 440CDi ErP
Category	Boiler
Type	Combi
ErP Rating	A
Hot Water Flow Rate	20 l/min
Fuel Type	Natural Gas
Gas Type	Natural Gas
Warranty	5 years
Mounting	Wall Mounted