If the pipe has a small diameter, create a 90 degree turn in the line flow direction with
a tee fitting. Place the sensor pocket in the outlet that is parallel to the original line. The
probe itself should extend upstream from the turn. This will allow you to install even a
long sensor pocket (150–200 mm) along the line. The sensor pocket is available as an
accessory, see section
Accessories.
Tee fitting with sensor pocket ver. 1
Pos.
Item
A
Flow direction
B
Tee fitting
C
Sensor probe in pocket
D
Sensor pocket connection
Using a tee connector to install a sensor pocket in a small-diameter pipe.
Sensor cable
The cable can be extended if required. Use a regular insulated copper twin cable for
connecting the cable and extending the cable (0.5 mm
2
, length < 40 m).
● Join or splice the cable ends in a way that causes no additional electrical resistance
in the wires.
● Protect the joint against moisture and oxidation.
Shared cascade flow sensor
By default, in two-unit RE models (and in multi-unit heat pump configurations), a single
shared flow temperature sensor (B10) is used to control the entire cascade. The heat
pump comes with the sensor already connected. Install the sensor to the condenser’s
flow line downstream from the last heat pump in the cascade. See the instructions
above.
An example of shared cascade flow sensor installation. M: Master, S1: Slave 1, S2: Slave 2 (Slave 2 not
present in standard two-unit RE configurations).
The shared cascade flow line and the heat pumps’ individual flow lines are shown in red.
18 (74)
M8009 2147EN
Summary of Contents for Lampoassa RE 28-48
Page 1: ...M8009 2147EN 25 October 2021 Installation and operation manual RE 28 48 RE 56 96...
Page 2: ......
Page 45: ...RE 04 dimensions single unit configuration Two units M8009 2147EN 43 74...
Page 46: ...RE 04 dimensions two unit configuration 44 74 M8009 2147EN...
Page 61: ...7 4 EN 14285 Technical data sheets RE 28 RE 28 Technical data sheet ver 1 M8009 2147EN 59 74...
Page 62: ...RE 33 RE 33 Technical data sheet ver 1 60 74 M8009 2147EN...
Page 63: ...RE 38 RE 38 Technical data sheet ver 1 M8009 2147EN 61 74...
Page 64: ...RE 42 RE 42 Technical data sheet ver 1 62 74 M8009 2147EN...
Page 71: ...Wilo Stratos 40 1 12 Wilo Yonos MAXO 40 0 5 16 M8009 2147EN 69 74...
Page 77: ......