
PIPE INSTALLATION
GENERAL
Pipe installation must be carried out in accordance with
current norms and directives.
The accumulator tank/water heater must be fitted with the
necessary valves, such as a safety valve, shut-off valve and
non-return valve.
The accumulator tank/water heater must be provided with
a mixing valve, which limits the temperature of outgoing
hot water to 60 °C. If this valve is not fitted, some other
measure must be taken to prevent the risk of scalding.
Internal support bushes must be fitted when a plastic or
annealed copper pipe is used. An overflow pipe must be
routed from the safety valve to a suitable drain. The overflow
pipe must be the same size as the safety valve. Route the
overflow pipe from the safety valve, sloping along its entire
length and ensure that it is frost proof. The mouth of the
overflow pipe must be visible and not placed close to elec-
trical components.
NOTE
Beware of any water splashes.
There is a risk of scalding.
Ensure that incoming water is clean. When using a private
well, it may be necessary to supplement with an extra water
filter.
If uncertain, contact a plumber alternatively see applicable
standards.
INSTALLATION
NIBE SP is installed upright or horizontally. For upright in-
stallation, NIBE SP is levelled using four adjustable feet. For
horizontal installation, the mounting rail is used.
A separate floor stand is available as an accessory for hori-
zontal installation.
SP 300 can be supplied for upright installation, with an
electric heater ELK-213 if threaded flanges are first installed
on the connections (XL35), threaded flanges are available
as an accessory.
For horizontal installation, a circulation pump must be in-
stalled.
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electrician,
and in accordance with applicable electrical safety
regulations.
Connections
The accumulator tank/hot water heater is suppled with
compression ring couplings or threaded connections. Two
covers for plugging the electric heater connections (XL35)
are enclosed.
Venting valve
Used for the upright version.
The T-pipe can be rotated freely, as long as the drainage
hole discharges downwards.
Pressure drop diagram
00 1000 2000 3000 4000
0,5
1,0
1,5
Tryckfall, primärsida
(kPa)
Flöde
(l/h)
Pressure drop, primary side
(kPa)
Flow
(l/h)
FILLING
Fill the accumulator tank/water heater as follows:
1. Open a hot water tap in the system.
2. Fill the accumulator tank/hot water heater through the
cold water connection (XL3).
3. The hot water tap can be shut off when the accumulator
tank/water heater is filled, which is when only water
comes out of the tap (initially an air-water mixture
comes out of the tap).
13NIBE SP | EN