Worcester GREENSTAR HEATSLAVE 12/18 Instruction Manual page 11

c)
MAXIMUM PIPE RUN FOR SINGLE PIPE SUCTION LIFT WITH DE-AERATOR
FUEL FLOW RATE
HEAD 2.5kg/h 5kg/h 10kg/h
8mmØ 8mmØ 8mmØ 10mmØ
0 100 55 26
0.5 95 45 23
1.0 80 40 20
1.5 70 35 17
The table and illustration above is a guide only and does not in any way override the
de-aerator manufacturers instructions.
P
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR HEATSLAVE 12/18-18/25-25/32
6 720 802 432 issue A 04/2012
M
A
D
B C H B
N
K
E
FUEL FLOW RATE
10kg/h HEAD 2.5kg/h
8mmØ
100 2.0 60
2.5 45
100
3.0 35
90
3.5 25
75
P
R
H
S
T
OIL SUPPLY
F
G
c) Single pipe suction lift with de-aerator
Maximum suction height 3.5 metres. The oil
tank (A) must be positioned below the oil pump
(J). Create an inlet and return loop between the
de-aerator (M) and oil pump (J).
J
A non-return valve must be incorporated within
the de-aerator or fitted to the oil line between
the oil storage tank (A) and the de-aerator (M).
A top feed oil tank fitted with a de-aerator
using an internal non-return valve should have
any non-return valves fitted in the base of the
tank to the suction line removed to assist
5kg/h 10kg/h 10kg/h
purging air from the oil line.
8mmØ 8mmØ 10mmØ
30 14 65
25 11 50
15 8 35
10 5 20
Pipework
4 Use copper pipe of the correct diameter
•
4 Slide nut (P) and olive (R) onto the oil
4 Slide insert (S) into the pipe.
4 Offer the pipe to the fitting (T) and tighten the
4 Use flexible hoses to connect to the oil pump (J).
4 Lay the oil supply pipe (H) as straight and
4 Install a manual isolating valve (B) to the oil
4 Fit an oil strainer and water separator (C) to
4 Fit a fire valve in accordance with BS 5410.
according to the information shown opposite.
If using soft copper pipe (R220) with a
compression fitting, an insert must be used
to prevent the pipe from collapsing or
distorting when the fitting is tightened.
supply pipe (H).
nut (P).
level as possible to avoid air pockets and
unnecessary friction losses. Route away
from the boiler access door or other hot
surfaces.
supply pipe (H), as close to the oil storage
tank (A) as possible.
the oil supply pipe, near the oil storage tank.
Fit an additional oil filter (N, 70μ max
filtration size) close to the boiler, but not
inside the boiler casing.
The fire valve (D) should be fitted externally
to the building with the fire valve sensor (F)
located within the appliance case.
A fire valve with a shut off temperature of
85°C or higher must be fitted to avoid
the possibility of nuisance shut offs.
A capillary type valve provides a neat and
simple installation. Alternatively, a fusible
link or electrical system may be used.
Under no circumstances should a
combination isolating/fire valve be used
as the sole fire protection device.
OIL SUPPLY
11