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Operating instructions
Power supply PFP 700, Relay module PFR 704
© 2018 Elster GmbH · Edition 01.18
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the installation, pass the instructions on to the
operator. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• , , , ... = Action
▷ = Instruction
Liability
We will not be held liable for damages resulting
from non-observance of the instructions and noncompliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
Translation from the German
Contents
Power supply PFP 700,
Relay module PFR 704...................
Contents ..............................
Safety.................................
Checking the usage .....................
PFP 700...............................2
PFR 704 ..............................2
Installation ............................
Replacing PFP 700/PFR 704 ..............
Wiring ................................
Commissioning.........................
Faults.................................4
Technical data .........................4
Certification ...........................4
Contact ...............................4
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Transport
On receipt of the product, check that the delivery is
complete (see Part designations). Report any transport damage immediately.
Storage
Store the product in a dry place. Ambient temperature: see Technical data.
Changes to edition 05.09
The following chapters have been changed:
– Wiring
– Certification
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Checking the usage
2
1
PFP 700
Mounted in a module subrack, for power supply to
the control inputs of burner control units PFU760
and PFU780, or for auxiliary voltage supply to relay
module PFR704.
This function is only guaranteed when used within
the specified limits – see Technical data. Any other
use is considered as non-compliant.
Typenschlüssel
Code Description
PFP Power supply
700 Series
T
N
Z Special version
Part designations
5
LED panel
On/Off switch
Screws for attachment to the subrack
4 Connection diagram
5 Type label
Input voltage and ambient temperature – see type
label.
PFR 704
Mounted in a module subrack, for contact multiplication, e.g. if several air valves are activated via one
control signal for pre-purge, or for heating/cooling
switchover when using an impulse system MPT.
This function is only guaranteed when used within
the specified limits – see Technical data. Any other
use is considered as non-compliant.
Mains voltage: 220/240 V AC
4
D-49018 Osnabrück, Germany
PFP 700
110/120 V AC
3
U
I
1
I
2
PFP 700
3
Type code
Code Description
PFR Relay module
7 Series
04 With 4 independent relays
T
N
K
H
Mains voltage: 220/240 V AC
110/120 V AC
24 V DC
24 V AC
Z Special version
Part designations
4
2
1
2
3
4
1
3
PFR 704
2
LED panel for relay activation
Screws for attachment to the subrack
Connection diagram
4 Type label
Input voltage – see type label.
D-49018 Osnabrück, Germany
PFR 704
Installation
▷ Installation position: any.
▷ Distance between PFU and burner: max. 100m
(328 ft).
U
I
U
I
I
PFP 700
I
PFP 700
Replacing PFP 700/PFR 704
▷
Since February 2008, power supply PFP700
and relay module PFR 704 have had a black
front plate. PFP 700 and PFR 704 with a black
front plate incorporate all the previous functions
of PFP700 and PFR704 with a grey front plate.
▷
The new power supply PFP700 and the relay
module PFR704 are interchangeable with units
of earlier construction stages.
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PFP 700
max. 2 A, 264
B
CAUTION
Please observe the following to ensure that the PFP
is not damaged during operation:
– Check the mains voltage setting of the replaced
unit – see setting of switch S (115V or 230V).
– If necessary, adjust the setting of switch S on
the new unit.
S1
PFR 704
CAUTION
Please observe the following to ensure that the
PFR is not damaged during operation:
– The relay inputs must only be connected to the
permitted voltages (see connection diagram B
for PFR704).
PFR 704
230 V~
115 V~
24 V=/~
0 V
230 V~
115 V~
24 V=/~
0 V
230 V~
115 V~
24 V=/~
0 V
230 V~
115 V~
24 V=/~
0 V
2e
2a
2c
4e
10e
10a
10c
12e
18e
18a
18c
20e
26e
26a
26c
28e
1
2
3
4
Commissioning
16a
16e
14a
14e
14c
16c
24a
24e
22a
22e
22c
24c
32a
32e
30a
30e
30c
32c
6a
6e
8a
8e
8c
6c
max. 2 A, 264 Vmax. 2 A, 264 Vmax. 2 A, 264 V
V
Wiring
CAUTION
Mains voltage may only be connected by trained
WARNING
Electric shocks can be fatal! Before working on
possible live components ensure the unit is disconnected from the power supply.
Disconnect the system from the electrical power
supply.
▷ PFP and PFR do not meet the requirements for
safety extra low voltage (SELV/PELV).
▷ Ensure that the board outputs are connected to
mains voltage of one phase only or are only supplied with 24 V AC/DC. Do not use the outputs
personnel.
Check the electrical wiring, switch settings and
parameter settings of the 19” boards and the
burner settings before commissioning.
Switch on the system.
PFP 700
Apply voltage to terminal 30a.
4 Switch on power supply PFP 700.
▷ The green LED will light up.
PFR 704
▷ The green LED will light up if a relay is activated.
for different phases (L1, L2 and L3).
▷ Connection only with permanent wiring.
Wire as shown on the connection diagram.
Connection diagrams
A = PFP 700
B = PFR 704
A
PFP 700
F1
30a
L1
32c
N
S1
S0
O
I
UI
230 V
115 V
8ace
12ace
24 V=
600 mA
0 V
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Faults
WARNING
Electric shocks can be fatal! Before working on
possible live components ensure the unit is disconnected from the power supply.
Fault-clearance must only be undertaken by authorised, trained personnel.
? Faults
! Cause
• Remedy
? Red LED lights up on PFP 700 – 4 VDC
output is switched off.
! Overload at terminals 8ace – 12ace:
current >600 mA.
• Check wiring, reduce load.
Technical data
Front width 8 depth units = 40.6 mm,
Overall height 3 height units = 128.4 mm.
Ambient temperature:
-20°C to +60°C.
PFP 700
Mains voltage:
110/120 V AC, -15/+10%, 50/60 Hz,
220/240 V AC, -15/+10%, 50/60 Hz.
Power consumption:
PFP 700: 25 VA.
Output load:
24 V DC, 600 mA, short circuit-proof,
output rating 14 VA, PFP 700 switches off in the
event of an output overload.
Fine-wire fuse: 0.315 A, slow-acting L, pursuant to
IEC 127-2/3.
Weight: approx. 0.75 kg.
PFR 704
Input voltage: 3 inputs per relay,
110/120 V AC, -15/+10%, 50/60 Hz,
220/240 V AC, -15/+10%, 50/60 Hz,
24 V AC/DC, ± 10%.
Power consumption per relay: 25 mA.
Contact rating of floating outputs:
max. 2 A, 264 V (not fused internally).
Weight: 0.17 kg.
Certification
Declaration of conformity
We, the manufacturer, hereby declare that the prod-
ucts labelled accordingly comply with the essential
requirements of the following Directives and Stand-
ards:
– Gas Appliances Directive (90/396/EEC) in con-
junction with EN 298,
– Low Voltage Directive (2006/95/EC) in conjunction
with the relevant standards,
– Electromagnetic Compatibility Directive (2004/108/
EC) in conjunction with the relevant standards
relating to radiation,
– designed for applications pursuant to Directive
98/37/EC.
Comprehensive quality assurance is guaranteed by
a certified Quality System pursuant to DIN EN ISO
9001 according to annex II, paragraph 3 of Directive
90/396/EEC.
Elster GmbH
Contact
If you have any technical questions, please contact
your local branch office/agent. The addresses are
available on the Internet or from ElsterGmbH.
We reserve the right to make technical modifications
in the interests of progress.
Strotheweg 1, D-49504 Lotte (Büren)
Elster GmbH
Tel. +49 541 1214-0
Fax +49 541 1214-370
hts.lotte@honeywell.com, www.kromschroeder.com
GB-4
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