4 Installation
Installation manual
7
RBLQ011~016CAW1
ROTEX HPSU monobloc compact outdoor unit
4P537991-1 – 2018.08
Drain holes (dimensions in mm)
160
620
261.5
119
161
260
285
279
345
595
416
262
38
71
C
D
E
D
D
D
D
A
B
A
Discharge side
B
Distance between anchor points
C
Bottom frame
D
Drain holes
E
Knockout hole for snow
NOTICE
If drain holes of the outdoor unit are covered by a mounting
base or by floor surface, raise the unit to provide a free
space of more than 150 mm under the outdoor unit.
≥150 mm
Snow
In regions with snowfall, snow might build up and freeze between the
heat exchanger and the external plate. This might decrease the
operating efficiency. To prevent this:
1
Drill (a, 4×) and remove the knockout hole (b).
b
a b
4× Ø6 mm
2
Remove the burrs, and paint the edges and areas around the
edges using repair paint to prevent rusting.
4.2.4
To prevent the outdoor unit from falling
over
In case the unit is installed in places where strong wind can tilt the
unit, take following measure:
1
Prepare 2 cables as indicated in the following illustration (field
supply).
2
Place the 2 cables over the outdoor unit.
3
Insert a rubber sheet between the cables and the outdoor unit
to prevent the cables from scratching the paint (field supply).
4
Attach the ends of the cables and tighten them.
4.3
Connecting the water piping
4.3.1
To connect the water piping
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit. Make sure that the tightening torque does NOT
exceed 30 N•m.
To facilitate service and maintenance, 2 shut-off valves are provided.
Mount the valves on the space heating water inlet and space heating
water outlet. Mind their position: the integrated drain valves will only
drain the side of the circuit on which they are located. To be able to
only drain the unit, make sure the drain valves are positioned
between the shut‑off valves and the unit.
a
b
a
Water inlet
b
Water outlet
1
Install the shut-off valves onto the outdoor unit water pipes.
2
Connect the field piping to the shut-off valves.
3
For how to connect the HPSU monobloc tank, see the
installation manual of the tank.
NOTICE
To protect the water circuit against freezing, add glycol.
For instructions, see the installation manual of the HPSU
monobloc tank.
NOTICE
Install a manometer in the system.
NOTICE
Install air purge valves at all local high points.
