Danfoss FP975 Installation guide
MAKING MODERN LIVING POSSIBLE
FP975
7-Day Electronic Programmer
Danfoss Heating
Installation Guide
For a large print version of these instructions please call Marketing on 0845 121 7400.
®
Certification Mark
Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
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FP975 |
Installation Instructions
FP975
7 Day Electronic Programmer
GB
Index
1.0 |
Installation Guide ..................................................................................... |
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2.0 |
System Overview....................................................................................... |
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3.0 |
Installation ................................................................................................... |
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3.1 |
DIL Switch Settings ........................................................................... |
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3.2 |
New Installations................................................................................ |
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3.3 |
Existing Installations......................................................................... |
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3.4 |
Wiring..................................................................................................... |
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3.5 |
230 Vac Fully Pumped System - Zone Valves ........................... |
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3.6 |
230 Vac Controlled Gravity Hot Water..................................... |
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3.7 |
230 Vac Fully Pumped System - Mid-Position Valves ......... |
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3.8 |
Wiring Conversions ........................................................................ |
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Danfoss Heating |
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1.0 Installation Guide
Please Note:
This product should only be installed by a qualified electrician or competent heating installer and should be in accordance with the current edition of the IEEE wiring regulations.
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2.0 System Overview |
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Specification |
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Power supply |
230 Vac ± 15%, 50/60 Hz |
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Switching action |
2 x SPDT voltage free, Type 1BS |
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Switch rating |
10-230 Vac, 3(1)A |
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Battery back-up |
24 hours minimum |
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Timing Accuracy |
±1 min/month |
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Setting/Running Accuracy |
±1 minute |
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Max. Ambient Temperature |
45°C |
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Dimensions, mm (W, H, D) |
148 x 96 x 42 |
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Design standard |
EN 60730-2-7 |
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Control Pollution Situation |
Degree 2 |
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Rated Impulse Voltage |
2.5kV |
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Ball Pressure Test |
75°C |
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3.0 Installation |
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3.1 DIL Switch Settings |
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Before mounting the unit, ensure the 4 DIL switches on the rear of the unit have been moved to the required settings.
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<![if ! IE]> <![endif]>9.MK |
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<![if ! IE]> <![endif]>PUMPED |
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<![if ! IE]> <![endif]>DAY/24 7 |
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<![if ! IE]> <![endif]>HR 24 |
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<![if ! IE]> <![endif]>HR |
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LEFT |
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RIGHT |
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<![if ! IE]> <![endif]>SET |
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<![if ! IE]> <![endif]>GRAVITY |
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<![if ! IE]> <![endif]>DAY 5/2 |
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<![if ! IE]> <![endif]>DAY 7 |
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FP975 |
MK.9 or SET
The FP975 is supplied fitted with a Danfoss Randall SET wallplate. However the FP975 will also mount directly onto a Danfoss Randall MK.9 wallplate without the need for wiring changes. However when used with existing MK.9 wallplates the left hand switch must be set in the MK.9 position to re-configure the time control to match MK.9 wiring connections.
PUMPED or GRAVITY |
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When this switch is in the PUMPED position the Heating and Water |
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outputs are UNLINKED. When in the GRAVITY position the Water |
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output is LINKED to the Heating output so that whenever the |
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Heating is ON the Water will also be ON regardless of the Water |
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programme. |
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Place the switch in the PUMPED position if the system being |
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controlled is a) fully pumped with a mid-position valve, b) fully |
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pumped with a two port zone valve in each circuit, c) GRAVITY |
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Hot Water, PUMPED Heating with a two port zone valve with SPDT |
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auxiliary switch in the gravity primary circuit (and wired in accordance |
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with diagrams on pages 9-10). |
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Place the switch in the GRAVITY position if the system being |
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controlled is a) fully pumped, but with only a single two port zone |
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valve in the Heating circuit, b) GRAVITY Hot Water, PUMPED Heating |
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with no zone valves. |
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7 Day, 5/2 Day or 24 Hour |
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When both switches are in the 7 DAY position each day of the |
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week may be programmed with di erent ON/OFF times. When the |
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switch is in the 5 DAY/2 DAY position, weekdays (Mon-Fri) can be |
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programmed with one set of ON/OFF times, and weekends (Sat-Sun) |
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can be programmed with a di erent set. When both switches are in |
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the 24 hour position the same set of times will be repeated in every |
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24 hour period. |
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3.2 New Installation
1.Fix the wallplate to the wall or plaster box as required.
When fixing the wallplate note that the terminals are at the top, and the vertical centre line of the unit lies between terminals N and L.
2.Surface cables can only enter from below the unit. If mounted on a plaster box, cables can enter from the rear through the aperture in the wallplate.
Danfoss Heating |
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