Daikin EKSRPS4AB [11/44] X installation
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Daikin EKSRPS4AB [11/44] X installation

Daikin EKSRPS4AB [11/44] X installation
4 x Installation
Daikin EKSRPS4
Daikin Control and pump unit for solar systems
008.1624644 – 08/2015
Operating and installation instructions
11
4.2.2 Installation FlowSensor, FlowGuard (optional)
FlowSensor
The FlowSensor FLS 20 (fig. 4-17) is a measuring device that
simultaneously determines the flow rate in the solar panel and the
flow temperature. The measuring ranges are 0...20 l/min (flow
quantity) and 0...120°C (inflow temperature). The measured
values are displayed on the Solar R4 control system.
By controlling the speed of the P
S
solar circulation pump, the
Solar R4 automatically adjusts the optimum flow quantity.
1. Insert the seal (b) on the solar flow connection (a) of the hot
water storage tank.
2. Screw the FlowSensor (c) onto the solar flow connection (a)
of the hot water storage tank.
3. Insert the seal (e) and fit the plug fitting (f) to the inlet to the
FlowSensor (c).
4. Shorten the flow line (g) (Ø 15 mm) to the required length and
insert into the plug fitting (f).
5. Lay FlowSensor cable between FlowSensor (c) and Solar R4
control unit.
6. Connect FlowSensor cable to FlowSensor (c) and to the Solar
R4 control system printed circuit board edge at position FLS
(4-pin, see fig. 4-23).
FlowGuard
The FlowGuard FLG (fig. 4-19) is also available as an accessory.
It is a regulating valve with integrated flow indicator which can be
used to set the flow rate through the solar panel array.
The display range is 2...16 l/min.
1. Insert the seal in the flow connection (see fig. 4-18).
2. Mount the FlowGuard, and screw it tight.
3. Insert the seal and install the plug fitting into the input to the
FlowGuard.
4. Insert a prepared flow pipe into the plug fitting of the
FlowGuard.
CAUTION!
In the case of longer pipe runs with only a minimum
gradient, it is possible for water pockets to develop
due to thermal expansion of the plastic pipes between
the mounting points with siphon action:
● Use support troughs (TS).
● Always make sure that pipe runs have a
continuous gradient of at least 2 %.
Note the direction of flow when installing the FlowSen-
sor.
Fig. 4-16 Mounting FlowSensor FLS
Fig. 4-17 FlowSensor FLS supplied with 3 m cable
Fig. 4-18 Work step 1+2
Fig. 4-19 Accessory FlowGuard FLG

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