Daikin Rotex PGMK User manual

Output 05/2017
EN
 Read manual before use!
 Observe all safety information!
 Keep manual for future use!
156077 PGDK
156075 PGMK
English

About these operating instructions
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1 About these operating instructions
These operating instructions describe the pump assembly with and without
mixer (also referred to as "product" in these operating instructions).
These operating instructions are part of the product.
• You may only use the product if you have fully read and understood these
operating instructions.
• Verify that these operating instructions are always accessible for any type
of work performed on or with the product.
• Pass these operating instructions as well as all other product-related doc-
uments on to all owners of the product.
• If you feel that these operating instructions contain errors, inconsisten-
cies, ambiguities or other issues, contact the manufacturer prior to using
the product.
There operating instructions are protected by copyright and may only be
used as provided for by the corresponding copyright legislation. We reserve
the right to modifications.
The manufacturer shall not be liable in any form whatsoever for direct or con-
sequential damage resulting from failure to observe these operating instruc-
tions or from failure to comply with directives, regulations and standards and
any other statutory requirements applicable at the installation site of the prod-
uct.

Information on safety
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2 Information on safety
2.1 Safety messages and hazard categories
These operating instructions contain safety messages to alert you to poten-
tial hazards and risks. In addition to the instructions provided in these oper-
ating instructions, you must comply with all directives, standards and safety
regulations applicable at the installation site of the product. Verify that you are
familiar with all directives, standards and safety regulations and ensure com-
pliance with them prior to using the product.
Safety messages in these operating instructions are highlighted with warning
symbols and warning words. Depending on the severity of a hazard, the
safety messages are classified according to different hazard categories.
In addition, the following symbols are used in these operating instructions:
DANGER
DANGER indicates a hazardous situation, which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation, which, if not avoided,
can result in serious injury or equipment damage.
NOTICE
NOTICE indicates a hazardous situation, which, if not avoided, can
result in equipment damage.
This is the general safety alert symbol. It alerts to injury haz-
ards or equipment damage. Comply with all safety instruc-
tions in conjunction with this symbol to help avoid possible
death, injury or equipment damage.
This symbol alerts to hazardous electrical voltage. If this
symbol is used in a safety message, there is a hazard of
electric shock.

Information on safety
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2.2 Intended use
This product may only be used to circulate the following liquids in intrinsically
safe, sealed, thermal heating systems:
• Heating circuit water as per VDI 2035
• Water/glycol mixtures with a maximum admixture of 20 %
Any use other than the application explicitly permitted in these operating
instructions is not permitted and causes hazards.
Verify that the product is suitable for the application planned by you prior to
using the product. In doing so, take into account at least the following:
• All directives, standards and safety regulations applicable at the installa-
tion site of the product
• All conditions and data specified for the product
• The conditions of the planned application
In addition, perform a risk assessment in view of the planned application,
according to an approved risk assessment method, and implement the
appropriate safety measures, based on the results of the risk assessment.
Take into account the consequences of installing or integrating the product
into a system or a plant.
When using the product, perform all work and all other activities in conjunc-
tion with the product in compliance with the conditions specified in the oper-
ating instructions and on the nameplate, as well as with all directives, stand-
ards and safety regulations applicable at the installation site of the product

Information on safety
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2.3 Predictable incorrect application
The product must never be used in the following cases and for the following
purposes:
• Use with drinking water
• Use with adherent, corrosive or flammable fluids
• Operation in systems with temperatures exceeding 110 °C
(for example, solar systems)
2.4 Qualification of personnel
Only appropriately trained persons who are familiar with and understand the
contents of these operating instructions and all other pertinent product doc-
umentation are authorized to work on and with this product.
These persons must have sufficient technical training, knowledge and expe-
rience and be able to foresee and detect potential hazards that may be
caused by using the product
All persons working on and with the product must be fully familiar with all
directives, standards and safety regulations that must be observed for per-
forming such work.
2.5 Personal protective equipment.
Always wear the required personal protective equipment. When performing
work on and with the product, take into account that hazards may be present
at the installation site which do not directly result from the product itself.
2.6 Modifications to the product
Only perform work on and with the product which is explicitly described in
these operating instructions. Do not make any modifications to the product
which are not described in these operating instructions.

Transport and storage
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3 Transport and storage
The product may be damaged as a result of improper transport or storage.
NOTICE
DAMAGE TO THE PRODUCT
• Verify compliance with the specified ambient conditions during transport or
storage of the product.
• Use the original packaging when transporting the product.
• Store the product in a clean and dry environment.
• Verify that the product is protected against shocks and impact during trans-
port and storage.
Failure to follow these instructions can result in equipment damage.

Product description
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4 Product description
The product is a pre-assembled, tightness-tested and heat-insulated pump
assembly.
The universal insulation allows for the installation of virtually any standard cir-
culation pump (with G11/2connection and a length of 180 mm) without major
reworking of the insulation.
The second ball valve in the return line lets you replace the pump without
draining the system.
In addition, the system is modular so that the flow line can be mounted at the
left or the right side. Optional temperature probes Ø 6 mm can be mounted
to all ball valves.

Product description
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4.1 Overview
1. Return
2. Flow
A. Ball valve, can be shut off,
with thermometer blue
and gravity brake
B. Ball valve, can be shut off,
with thermometer red
C. Circulation pump (various
manufacturers)
D. Ball valve
E. 3-way mixer with actuator
F. Insulation
Fig. 1: PrimoTherm® components
12
B
C
D
E
F
A

Product description
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4.2 Versions
The variable insulation can be used for applications with flow at the left and
flow at the right.
Fig. 2: Flow right (left figure)
Fig. 3: Flow left (centre figure)
Fig. 4: Without actuator (right figure)

Product description
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4.3 Dimensions and connections
Approx.250 Approx.
Approx. 475
Approx.152

Product description
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4.4 Approvals, conformities, certifications
See operating instructions of the manufacturer of the circulation pump for ver-
sions with circulation pump.
A. G1
B. G1½
B
1
B
B
A
Approx. 125
Approx.60

Product description
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4.5 Technical specifications
Parameter Value
General specifications
Dimensions with insulation
(W x H x D)
250 x 475 x 152 mm
Weight Approx. 5.5 kg with mixer
Approx. 7.2 kg without mixer
Material of fittings Brass
Insulation material Polypropylene EPP
System pressure Max. 10 bar
(observe maximum pressure of
circulation pump used)
Axis distance 125 mm
System connections Boiler R11/2
Heating circuit Rp1
Flow coefficient Kvs 4.8 m3/h
Operating temperature range
Medium Max. 110 °C
Pressure loss
Flow line Flow coefficient Kvs = 6.9 m3/h
Return line Flow coefficient Kvs = 6.7 m3/h
Total: Flow coefficient Kvs = 4.8 m3/h

Mounting
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5 Mounting
5.1 Preparing mounting
Verify that the product is mounted in such a way that no external forces
can act on the components after it has been installed.
Verify that the product is not overheated by welding or soldering work per-
formed on the system.
- Install the product after completion of such welding or soldering work.
Verify that the nominal pressure of the product corresponds to the speci-
fication value of the system.
Verify that the liquid in the system and the application area of the product
are compatible.
Verify that the pipes are thoroughly flushed prior to installation of the prod-
uct.
- Impurities such as weld beads, hemp or metal chips cause leaks of the
product.
WARNING
BURNS CAUSED BY HOT LIQUID
Water in heating systems is under high pressure and can have temperatures of
more than 100 °C.
• Verify that the heating water has cooled down before opening the system and
mounting the product.
Failure to follow these instructions can result in death, serious injury or
equipment damage.

Mounting
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5.1.1 Interchanging flow/return
Unless otherwise specified, all information in these operating instructions
relates to the installation type "flow right".
A. Return
B. Flow
C. Red thermometer ball
valve
D. Blue thermometer ball
valve
Fig. 5: Flow right (condition as supplied)
B
A
C
B
D

Mounting
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A. Flow
B. Return
C. Blue thermometer ball
valve
D. Red thermometer ball
valve
Fig. 6: Flow left
D
A
AB
C
D

Mounting
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1. Interchange left and right
lines.
2. Turn the pump head.
3. Change the actuator.
- Flow right
4. Uninstall the actuator.

Mounting
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5.1.2 Mounting the temperature probe (optional)
5. Re-install the actuator.
- Flow left
6. Fit the upper insulation.
Depending on the type of the
temperature probe (B), it may
be necessary to shorten the
ferrule (A).
A B

Mounting
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5.2 Mounting the product
5.2.1 Mounting the product to a module manifold
1. Remove the insulation.
2. Screw the pump assembly to module manifold.
3. Screw the pipes of the heating circuit to the top connections (no
mechanical stress).
4. Fit the complete insulation.
5.2.2 Wall mounting
NOTICE
MECHANICAL LOADS AND STRESS
• Verify that the product is not subjected to mechanical loads and stress when
connecting the product.
• If necessary, install a corrugated pipe compensator to compensate for
mechanical stress or tension.
Failure to follow these instructions can result in equipment damage.
NOTICE
MECHANICAL LOADS AND STRESS
• Verify that the product is not subjected to mechanical loads and stress when
mounting the product to the wall.
Failure to follow these instructions can result in equipment damage.

Mounting
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9. Fit the product with the bottom insulation and secure it with a washer and
a nut.
10.Connect the pipes of the heating circuit to the connections of the fittings
(no mechanical stress).
11.Fit the upper insulation.
1. Remove the upper insulation.
2. Hold the product to the wall and
align it with a level.
3. Draw six marks.
4. Interconnect the opposing marks.
5. Drill holes (Ø 10 mm) at the posi-
tion of the two centre marks.
6. Insert the enclosed dowels.
7. Screw the long hanger bolt into
the top hole.
8. Screw the short hanger bolt into
the bottom hole.

Mounting
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5.3 Electrical connection
1. Connect the circulation pump and the actuator in accordance with the
instructions of the manufacturer.
DANGER
ELECTRIC SHOCK
• Verify that the degree of protection against electric shock (protection class,
double insulation) is not reduced by the type of electrical installation.
Failure to follow these instructions will result in death or serious injury.
DANGER
ELECTRIC SHOCK CAUSED BY LIVE PARTS
• Disconnect the mains voltage supply before performing the work and ensure
that it cannot be switched on.
• Verify that no hazards can be caused by electrically conductive objects or
media.
Failure to follow these instructions will result in death or serious injury.