PAW GmbH & Co. KG
Böcklerstr. 11, D-31789 Hameln, Germany
Tel.: +49-5151-9856-0, Fax: +49-5151-9856-98
Email: [email protected], Web: www.paw.eu
Installation and Commissioning Instructions
Low Temperature Zone Module
F33 - 1" (DN 25)
1 General information
item no. 994736071xNA – version V01 – issued 2008/02
PAW GmbH & Co. KG
We reserve the right to make technical changes without notice!
Böcklerstr. 11
Printed in Germany – Copyright by PAW GmbH & Co. KG
31789 Hameln, Germany
994736071xNA – V01
2008/02
1 General information
Contents
1
General information............................................................................................................. 4
1.1
Scope of these instructions .......................................................................................... 4
1.2
Designated use............................................................................................................. 4
2
Safety instructions ............................................................................................................... 5
3
Product description.............................................................................................................. 6
3.1
Equipment .................................................................................................................... 7
3.2
Function...................................................................................................................... 10
3.2.1
Mixing valve [specialist] .......................................................................................... 11
3.2.2
Check valve [specialist] .......................................................................................... 14
3.3
4
Accessories: Actuator (not included in delivery) ......................................................... 15
Assembly and installation [specialist] ................................................................................ 16
4.1
Option 1: Installation of the manifold .......................................................................... 16
4.2
Option 2: Installation of the wall brackets with mounting plate ................................... 17
4.3
Installation of the zone module and commissioning ................................................... 18
4.4
Accessories: Compression-ring coupling (not included in delivery)............................ 21
5
Scope of delivery [specialist] ............................................................................................. 22
6
Technical data................................................................................................................... 23
6.1
Pressure drop ............................................................................................................. 24
1 General information
1 General information
1.1
Scope of these instructions
These instructions describe the function, installation, commissioning and operation of the F33 low
temperature zone module. For other components of the installation, such as pumps, controllers and
manifolds, see the manufacturers' instructions. The chapters called [specialist] are directed to
specialists only.
1.2
Designated use
The zone module may only be used in hydronic heating closed-loop systems taking into
consideration the technical limit values indicated in these instructions. The zone module must not
be used in any applications for fuel or oil and domestic water applications such as jacuzzis.
The wrapping materials are made of recyclable materials and can be disposed of with recyclable
materials.
994736071xNA – V01
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2 Safety instructions
2 Safety instructions
The installation and commissioning of the zone module as well as the connection of electrical
components require technical knowledge commensurate with a recognised vocational qualification
as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a
comparable level of knowledge [specialist]. The following must be observed during installation and
commissioning:
•
Relevant local and national prescriptions
•
Accident prevention regulations of the professional association
•
Instructions and safety instructions mentioned in these instructions
All field wiring made during installation must comply with:
•
National Electrical Code NFPA 70 and any other national, state, provincial or local codes or
requirements
•
In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any other local codes
Attention
The F33 PAW zone module may only be used in hydronic heating closedloop systems taking into consideration the technical limit values indicated in
these instructions. The zone module must not be used in any applications
for fuel or oil and domestic water applications such as jacuzzis.
Attention: Material damage due to mineral oils!
It is imperative to avoid that the EPDM sealing elements of the station get
in contact with substances containing mineral oils. Mineral oil products
cause lasting damage to the material, whereby its sealant properties are
lost.
If necessary, ask the manufacturer whether the solar fluid, fats or
installation aids contain mineral oils.
We do not assume liability nor provide warranty for damage to property
resulting from sealants damaged in this way.
3 Product description
Attention: overheating
The in-line aquastat has to be installed to the supply pipe in any case! Only
in this way it is possible to securely avoid overheating of the circuit and
damage of the floor covering.
3 Product description
The F33 zone module is a preassembled fitting group for hydronic heating closed loop systems. It
is equipped with isolation valves, so that the pump can be easily maintained or changed.
It is designed such that it can be directly mounted onto a PAW distribution manifold or a mounting
plate with thread connections. Only use PAW accessories in combination with the zone module.
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3 Product description
3.1 Equipment
F-1
A-1
A-1
Supply (zone)
A-2
Ball valve in the supply with
integrated temperature gauge
F-2
handle
A-2
B-1
E
B
D
D-1
C
C-5
C-2
C-1
B-1
Swivel flanges
B
3-speed pump
C
3-way mixing valve with adjustable
bypass 0-50%
C-1
Supply (boiler loop)
C-2
Return (boiler loop)
C-5
Flow check valves
D-1
D
Return pipe
E
Design insulation with optimized
function
F-2
Ball valve in the return with
integrated temperature gauge
handle
F-1
Return (zone)
3 Product description
The F33 is equipped with swivel flanges for
the integration of flanged and 90° rotated
flanged pumps.
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3 Product description
The insulation consists of three parts:
•
the front shell (E-1)
•
the back shell (E-2)
•
and the return pipe insulation (E-3)
If the pump is too large, you can use an
appropriate knife and cut a hole into the front
insulation shell along the pre-cut lines.
E-1
E-2
E-3
3 Product description
3.2 Function
F33 - Low temperature zone module with 3-way
mixing valve
The supply temperature of the zone module is
controlled by the integrated mixing valve. Hot supply
water and cold return water are mixed to obtain the
desired supply temperature of the zone module. The
supply temperature is adjusted with a thermostatic
head and an aquastat. The three-way actuator is
continuously adjustable (closed… completely open)
The rate of pre-mixing can be adjusted at the mixing
valve bypass and up to 50% of cold return water are
mixed to the hot supply water.
Example: Radiant heating systems require a low
temperature level with small temperature differences
and high flow rates. It is therefore sufficient to mix the
return water that is still quite warm with only a small
amount of hot water.
Applications
•
Zones with supply temperature that are
considerably lower than the boiler supply
temperature
•
Small zones with low power outputs and few
requirements regarding the control
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3 Product description
3.2.1
Mixing valve [specialist]
The supply temperature of the zone module is controlled by the mixing valve. Hot water from the
boiler and cold return water are mixed to obtain the desired supply temperature. The mixing valve is
suitable for low temperature heating zones which are operated with a constant supply temperature.
In case of maintenance of the mixing valve, please order the special gasket set which is available
as spare part.
zone
return
supply
C-4
bypass screw
C-3
C-5
adjustment
check valve
knob
return
supply
boiler loop
3 Product description
F33 is designed to provide constant
C-6
supply temperatures to the radiant
system. Depending on the geographic
location of the installation, periodic
adjustments to the temperature may or
may not be necessary.
The thermostatic head (C-6) serves to
adjust the desired supply temperature.
Rotating the dial of the thermostatic
head to a higher number will provide for
hotter temperatures. The designer of the
radiant system must ensure that the
range of temperatures provided by the
control is suitable for the installation.
The mixing valve is equipped with an additional flow channel serving as adjustable bypass.
Through the bypass water from the return is being mixed to the outgoing supply. Like this, the
flow temperature sinks, but the flow inside the system rises. The following diagram shows the
relationship between the warm-up time and the position of the bypass.The bigger the volume
flow and the more open the bypass, the longer it takes to reach adjusted temperature.
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3 Product description
1. During the start-up of the
system, determine the correct
bypass position in a trial and
error process.
•
When the bypass screw
(C-4) is turned by 90° so that
the slot is in a vertical position,
the bypass is closed. Usually,
this is the operation position for
smaller floor zones. The
temperature might be a bit
higher than adjusted on the
thermostatic head.
C-4
•
When the slot of the bypass
screw (C-4) is in horizontal
position, the bypass is
completely open. This means
that the biggest possible flow
volume flows from the return to
the supply. The supply
temperature is reduced and
might even be lower than
adjusted on the thermostatic
head.
2. Check the bypass adjustment
during operation. Take care
that there is a sufficient flow
volume to the radiant floor and
that the desired temperature is
reached
3 Product description
3.2.2
Check valve [specialist]
The zone module F33 is equipped with a check valve in the return pipe (D-1) and in the return of
the mixing valve (C-5). The check valve is spring-operated. The opening pressure is 2 kPa.
Operation
During operation the mark must be
directed to "Z".
Æ The check valve is operating.
Æ Flow only in one direction
For filling, emptying and bleeding
Filling, emptying, bleeding
the mark must be directed to "A".
Æ The check valve is lifted
(not operating)
Æ Flow in both directions
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3 Product description
3.3 Accessories: Actuator (not included in delivery)
The PAW actuator type SR10 - 24/3P is available as
an accessory (item # 7054). It is for weathercompensated control and includes a cable and a
mounting set for halting assembly onto the PAW
mixing valves. It operates the mixing valve.
4 Assembly and installation [specialist]
4 Assembly and installation [specialist]
The F33 zone module must be mounted either on a PAW distribution manifold or on a set of
wall bracket and mounting plate. The distribution manifold, the wall brackets and the mounting
plate are not included in delivery.
Attention
The location of installation must be dry, load-carrying and frost-proof to
prevent material damage to the installation.
4.1 Option 1: Installation of the manifold
4 13/32"
(112 mm)
1 3/8"
(35 mm)
2 5/32"
1
(55 mm)
Install the distribution manifold to the
wall either with wall brackets (1) or onto
a mounting plate (2) as described in the
instructions.
2
If possible, choose the largest distance
to the wall, so that the insulation of the
manifold can be easily mounted and
changed.
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4 Assembly and installation [specialist]
4.2 Option 2: Installation of the wall brackets with mounting plate
3. Choose the position for installation.
4. Copy the mounting holes for the wall
bracket onto the mounting surface.
5. Drill the holes and insert the wall
anchors.
6. Fix the wall bracket to the wall with the
screws and washers.
7. Screw the mounting plate onto the wall
bracket.
4 Assembly and installation [specialist]
4.3
Installation of the zone module and commissioning
The zone module can be installed
•
Option 1: on a PAW distribution
•
manifold
Option 2: on a PAW mounting plate
with thread connections
zone
zone
return
supply
return
supply
return
return
supply
supply
boiler loop
boiler loop
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4 Assembly and installation [specialist]
1. Take off the temperature gauge
flange
handles (A-2, F-2) and remove the
(top view)
1
front insulation shell (E-1) of the zone
nut
2
module. Remove the return pipe
insulation (E-3).
2. Screw off the union nuts (C-1, C-2)
3
and take off the sealing rings of the
zone module.
3. Flip the two nuts over the two flanges
flange
(side view)
as shown in the figure.
4 Assembly and installation [specialist]
3. Insert the sealing rings into the nuts.
sealing ring
4. Put the zone module onto the two
nuts.
5. Tighten the nuts. Take care that the
nuts do not get jammed and that the
sealing rings do not slip.
6. Connect the upper connections (A-1,
F-1) of the zone module to the
installation. The connection must be
stress-free.
7. Connect the distribution manifold or
the lower connections of the mounting
plate to the boiler (do not forget the
F-1
sealing rings). The connection must be
A-1
stress-free.
8. Connect the pump (B) to the controller.
A-2
F-2
9. Connect the aquastat to the upper
supply pipe.
B-1
E
10. Check and tighten all the thread
connections and union nuts, then carry
D
B
out the pressure test.
11. Mount the return pipe insulation (E-3)
and the front insulation shell (E-1) of
D-1
C
C-5
the zone module and attach the
temperature gauge handles (A-2, F-2).
Mount the insulation of the distribution
C-2
manifold.
C-1
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4 Assembly and installation [specialist]
4.4 Accessories: Compression-ring coupling (not included in delivery)
The connection to the heating installation can be carried out fast, pressure-proof and without
soldering when you use the optionally available compression-ring couplings.
1. Push the union nut ② and the ring ③ onto the copper
pipe ①. To guarantee secure load transmission and
sealing, the pipe must extend at least 3/8" (3 mm) out
of the ring.
2. Insert the support sleeve ④ into the copper pipe.
3. Insert the copper pipe with the plugged-on individual
parts (②, ③ and ④) all the way into the housing of the
compression-ring coupling ⑤.
4. First screw the union nut ② manually.
5. Tighten the union nut ② by rotating one full turn.
Secure the housing of the compression-ring coupling
⑤ against distort in order to avoid damaging the
sealing ring.
Not included in delivery!
5 Scope of delivery [specialist]
5 Scope of delivery [specialist]
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6 Technical data
6 Technical data
F33
1"
DN 25
Dimensions
"
mm
Center distance (1)
4 21/32
125
Total width (2)
9 27/32
250
Total height (3)
15 1/32
382
Installation length (4)
18 3/16
462
Connections
Zone module outlet (A-1, F-1)
1" female thread
Zone module inlet (C-1, C-2)
1½" male thread
Technical data
Opening pressure check valve (C-5, D-1)
2 kPa
can be opened
Materials
Fittings
Brass
Gaskets
EPDM/NBR
Insulation (E)
EPP
3
4
F-1
A-1
C-2
C-1
E
D-1
C-5
1
2
6 Technical data
F33
1"
DN 25
Pressure, maximum
116 psi
8 bars
Temperature, maximum
230 °F
110 °C
CV value
4.4
Hydraulics
6.1 Pressure drop
Flow rate [USgpm]
0,5
1
1,5
2
2,5
3
3,5
4
21,0
18,0
Wilo-Star-S21 U25
15,0
12,0
9,0
6,0
Pressure [ft head]
Pressure [mmwc]
0
7,0
6,5
6,0
5,5
5,0
4,5
4,0
3,5
3,0
2,5
2,0
1,5
1,0
0,5
0,0
K33 - DN 25
3,0
0
100
200
300
400
500
600
700
800
900
0,0
1000
Flow rate [l/h]
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