IM-P405-39 4058152/4 AB Issue 4 BT1050 Boiler Blowdown Timer Installation and Maintenance Instructions Commissioning password Current legislation states that in order to prevent tampering and potentially hazardous programming errors, access to the pass codes required to enter commissioning mode should only be available to qualified and trained personnel. Enter commissioning This is done from the run mode by pressing and holding down the for 5 seconds. PASS CODE 1. Safety information 2.
1. Safety information Safe operation of this product can only be guaranteed if it is properly installed, commissioned, used and maintained by qualified personnel (see Section 1.11) in compliance with the operating instructions. General installation and safety instructions for pipeline and plant construction, as well as the proper use of tools and safety equipment must also be complied with. Your attention is drawn to IEE Regulations (BS 7671, EN 12953, EN 12952 and EN 50156).
Symbols Equipment protected throughout by double insulation or reinforced insulation. Functional earth (ground) terminal, to enable the product to function correctly. Not used to provide electrical safety. Clean earth / ground. Safety earth. Caution, risk of electric shock. Caution, risk of danger, refer to accompanying documentation. Optically isolated current source or sink. Caution, Electrostatic Discharge (ESD) sensitive circuit.
1.1 Intended use i) Check that the product is suitable for use with the intended fluid. ii) Check material suitability, pressure and temperature and their maximum and minimum values. If the maximum operating limits of the product are lower than those of the system in which it is being fitted, or if malfunction of the product could result in a dangerous overpressure or overtemperature occurrence, ensure a safety device is included in the system to prevent such over-limit situations.
1.9 Tools and consumables Before starting work ensure that you have suitable tools and / or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and / or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high / low temperature, radiation, noise, falling objects, and dangers to eyes and face. 1.
2. User instructions and delivery information Certain computer programs contained in this product were developed by Spirax-Sarco Limited ("the Work(s)"). Copyright © Spirax-Sarco Limited 2013 All rights reserved Spirax-Sarco Limited grants the legal user of this product (or device) the right to use the Work(s) solely within the scope of the legitimate operation of the product (or device). No other right is granted under this licence.
2.3 LCD display Time Information line / Date Timer information Which timer is to time-out next: Timer number Day Time Fig. 2 Graphic display 5 Another timer is blowing down or Recovery timer: Indicates the time before another blowdown can safely occur, because the blowdown vessel is still cooling down. Features only available on linked BT1000 or BT1050 timers. Indicates an error or alarm The display is divided into four main sections: - Current time. - Information line / Date. - Timer information.
2.5 Timers information menu This menu details the duration, start, repeat and stop time that has been selected. It also displays which days have been selected. A ' - ' means that day has not been selected. Timer 1 duration 5 s start 08:00 repeat 01:00 stop 16:00 sm-w-fs Sunday Saturday Monday Friday Tuesday Thursday (not selected) (not selected) Wednesday Fig. 3 PRESS OK TO CLEAR Fig. 4 Error display 2.
2.7 Other features A test function provides the operator with a diagnostic tool. The BT1050 can communicate via an Infrared link between adjacent units. It can be designated as either a slave or a master unit - see Section 7, 'Communications'. 2.8 Equipment delivery, handling and storage Factory shipment The product is tested, calibrated and inspected prior to shipment, to ensure reliable operation.
3. System overview The BT1050 controls the opening and closing of a valve at the bottom of the boiler to remove precipitated solids that could otherwise build up, eventually causing damage. Each BT1050 has three timers. Three timer sequences are available. Only one timer sequence can be allocated to any one day. The timers are also used to prioritise boiler blowdown cycles.
BT1050 functional timing diagram (Multi-blowdowns per day) Setting up the timers - explanation: 1. Three TIMER sequences / patterns available 2. For each day, only one timer sequence can be allocated. 3. Timers 2 and 3 are not available if timer 1 is not being used or all of timer 1 days are used. 4. Timers 3 is not available if timers 1 and timer 2 use all the days. Four user variables are available: DURATION: The time duration of the blowdown START: The time (HRS, MINS), the timer sequence is to start.
Installation B TIMER 3 sequence 03 04 05 06 07 08 09 00 01 02 03 04 05 06 07 08 09 SUN MON TUE WED THU FRI SAT 02 SUN MON TUE WED THU FRI SAT TIMER 2 sequence 01 SUN MON TUE WED THU FRI SAT TIMER 1 sequence 00 Not available TIMER 2 sequence SUN MON TUE WED THU FRI SAT TIMER 1 sequence SUN MON TUE WED THU FRI SAT Installation C TIMER 3 sequence SUN MON TUE WED THU FRI SAT Not available Not available 12 IM-P405-39 AB Issue 4
CLOCK - 24 hrs 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 14 15 16 17 18 19 20 21 22 23 00 CLOCK - 24 hrs 10 11 12 13 IM-P405-39 AB Issue 4 13
4. Mechanical installation Note: Read the 'Safety information' in Section 1 before installing the product. The product must be installed in a suitable industrial control panel or fireproof enclosure to provide impact and environmental protection. A minimum of IP54 (EN 60529) is required. If installed in a harsh environment (conductive dust and / or wet conditions), extra protection is required.
- Cut the panel to the dimensions given in Figure 5. Drill the screw holes in the panel in the positions indicated. Remove the backing from the gasket supplied and apply to front face of the product. The bezel can be used to enhance the appearance of the panel cutout. If required, fit this to the outside of the panel. Fit the unit from the rear of the panel, and secure using the screws, washers (and bezel) provided. Tighten the M4 screws to 1.0 - 1.2 Nm.
5. Electrical installation Note: Before installing read the 'Safety Information' in Section 1. Warning: Isolate the mains supply before touching any of the wiring terminals as these may be wired to hazardous voltages. Use only the connectors supplied with the product, or spares obtained from Spirax Sarco Limited. Use of different connectors may compromise product safety and approvals. Ensure there is no condensation within the unit before installing and connecting the power.
11. Additional protection must be provided to prevent accessible parts (e.g. signal circuits) from becoming Hazardous Live if a wire or screw is accidentally loosened or freed. Ensure all wires are secured to at least one other wire from the same circuit. The attachment must be as close to the terminal block as possible but must not apply undue stress on the connection. Example: Use a cable tie to secure the live and neutral wire together.
5.2 Mains wiring notes: 1. Read Section 5.1, General Wiring notes, before attempting to wire the supply to the product. 2. Fuses must be fitted in all live conductors. Disconnect device conforming to IEC 60947-1 and IEC 60947-3 Product 2 3 A fuse 1 Disconnect device conforming to IEC 60947-1 and IEC 60947-3 L Product N 2 L1 3 A fuses 1 L2 3.
5.3 Signal wiring notes An earth current loop is created if a wire or screen is connected between two earth points that are at different potential (voltage). If the wiring diagram is followed correctly, the screen will only be connected to the earth at one end. The earth terminal is a functional earth rather than a protective earth. A protective earth provides protection from electric shock under a single fault condition. This product has double insulation and therefore does not require a protective earth.
5.4 EIA / TIA-485 communication wiring diagram Front The product can be connected as a slave to a two or four-wire EIA / TIA-485 multi-drop network. Slave(s) (Boiler controller) COM SCN Tx- E Tx+ Rx- Rx+ H / D H / D 97 96 95 94 93 92 91 90 Common R* R* B' A' R* R* B A Rx Earth* * See wiring notes Tx Master Fig. 8 RS485 / Modbus full duplex circuit (view from the top) EIA / TIA-485 wiring notes: EIA / TIA-485 symbols are used (A = Tx-, B = Tx+ and A' = Rx-, B' = Rx+).
Front Slave(s) (Boiler controller) COM SCN Tx- E Tx+ Rx- Rx+ H / D H / D 97 96 95 94 93 92 91 90 Add link between terminals 91 and 90 Common R* R* Earth* * See wiring notes Rx Tx Master Fig. 9 RS485 / Modbus half duplex circuit (view from the top) EIA / TIA-485 wiring notes continued: - - The bus common must be connected directly to protective ground / earth at one point only. Generally this point is at or near the master device.
6. Commissioning 6.1 General information All commissioning for the product is carried out using the front panel. The front panel consists of a graphics display and a 5-button keypad - See Figure 10 and Section 2. Warning: On entering the commissioning mode the product will cease normal control. The control relay will shut the valve. For safety, the alarm relay will continue to operate as normal. To regain normal control, return to the run menu.
6.1.1 Commissioning mode navigation After the correct pass code has been entered the display shows: MODE To exit the commissioning mode at any stage, press and hold the button to return to the run mode. Press the and buttons to scroll through the first level menus. Press the button to enter a particular sub-menu. The first menu title will remain displayed at the top of the screen and the new sub-menu will appear on the next line. As you progress through the menu, the longer the list becomes.
6.2 Commissioning - Quick set-up This section allows the user to carry out the minimum commissioning necessary to operate the system. It accepts the defaults set in the factory, so will only work if the original default settings have not been altered - See Section 10.10, 'Default settings' to confirm. Settings can then be tailored to suit the individual requirements of the customer / application if required.
6.3 Commissioning - full 6.3.1 Main menu structure ä MODE ä DATA Allows the user to view and change the valve status OFF, OPEN or AUTO. Allows displayed units to be configured:Temperature in °C or °F, multiple timer priority and recovery time to allow blowdown vessel contents to cool. ä INPUT Configures the link to switch box on the bottom blowdown valve. ä OUTPUT Configures the output communications link. ä CLOCK Sets actual year, date and time.
6.3.2 Commissioning via the sub-menus Sub-menus and their functions are outlined below, and enable the user to programme the unit. Additional information is given where further choices can be made. On selecting the sub-menu, the changeable variables will appear on the screen bottom right. The initial parameter will be the value currently stored in memory. To change the parameter, scroll through the options using the and buttons. Note the parameters currently saved /selected will flash.
6.3.4 DATA sub-menu ä DATA TEMP °F or °C (°C default). Select the preferred option and press OK button. ä DATA PRIORITY Prevents more than one boiler blowing down at the same time. Selects which timer has priority (opens the blowdown valve first). 9 = highest priority and 1 = lowest priority If the timer is not linked to other timers, set priority to '0'. ä DATA RECOVERY 6.3.5 INPUT sub-menu ä INPUT SWITCH Sets time (in hours and minutes) for blowdown vessel to cool.
6.3.6 OUTPUT sub-menu Selects MODBUS communication settings: ä OUTPUT COMMS ADDRESS Address - This sets the address for Modbus communication. The default is 001, and the maximum is 247. ä OUTPUT COMMS BAUD Baud rate defines the speed of communication between the product and an interrogating device in bits per second. The product can be set up to 1200, 9600 or 19200 Baud, with a default setting of 9600. ä OUTPUT COMMS IR COMMS 28 IR Comms - Sets Infrared master / slave configuration.
6.3.7 CLOCK sub-menu ä CLOCK HRS HRS (24) sets time in hours. ä CLOCK MINS Sets time in minutes. ä CLOCK YRS Sets current year (e.g. 09). ä CLOCK MONTH Sets month (e.g. 05 for May). ä CLOCK DATE Sets date (1-31). ä CLOCK DAY Sets actual day of the week. Note This is not day(s) on which blowdown occurs. ä CLOCK FORMAT IM-P405-39 AB Issue 4 Sets date / month format. Select day / month, as UK, Europe, or month / day, as USA.
6.3.8 TIMER sub-menu This timer controls the bottom blowdown times and their duration. The parameters will vary according to the type of boiler. Seek advice from a boiler manufacturer, insurance company, or a competent water treatment company. Timers 1, 2, and 3 are set in exactly the same way - see below:- ä TIMER 1, 2 or 3 DURATION This is the time (in seconds) the blowdown valve is to open - the actual blowdown period.
6.3.9 ALARM sub-menu ä ALARM LIFT ä ALARM LATCH Only shows if the switch is FITTED. Set ON or OFF. ON - The alarm will sound if the valve fails to lift within the time set in INPUT / LIFT. OFF - No alarm. Note: If ON selected, alarm will operate if MODE set to OPEN, or if valve is manually opened. Only shows if switch is fittted, set On or Off. ON - Alarm will latch until commissioning mode is entered. OFF - Alarm will only sound until the alarm condition is removed.
6.3.11 SOFTWARE VERSION sub-menu SW VER Allows the software version to be viewed. See separate literature for further information. 6.3.12 PASS CODE sub-menu SET PASS 32 This allows the default pass code to be changed to a user-defined value. It is important that if the default pass code is changed that the new value is noted and kept safe.
7. Communications 7.1 Infrared (IR) All products in the range can communicate via an infrared bus between adjacent controllers. It enables the parameters of up to seven slave products to be passed to a master product fitted with RS485 (products with a graphics display). The product connected to the RS485 networks must be fitted on the left of all the slaves fitted to the IR bus (Figure 11) and have ‘master’ selected in the ‘output-comms’ menu. RS485 Master Slave Slave Slave Slave IR Bus Fig.
7.2 RS485 addressing An offset is added to the register addresses (see above) for each device, depending on their position on the IR bus, i.e. the master’s offset is 0, the device to its right hand side has an offset of 100, the one to its right 200 and so on. RS485 Slave Master Slave Slave Slave IR Bus IR address 1 2 3 4 5 RS485 Offset 0 100 200 300 400 Fig. 13 8. Maintenance Note: Read the 'Safety information' in Section 1 before starting any maintenance.
8.3 Replacement and disposal of battery Caution: - Permanent damage will occur if the printed circuit board (pcb) is completely removed. - Do not remove the front keypad. 8.3.1 Cut the two side labels along the join line. 8.3.2 Squeeze enclosure in positions indictated to release locking tabs.
8.3.3 Remove the rear half of the enclosure only. 8.3.4 Remove the blue support.
8.3.5 Caution: permanent damage will occur if the printed circuit board (PCB) is completely removed. Slide the PCB out just far enough to access the cable tie securing the battery. Cable tie hole 8.3.6 Cut the cable tie and lift the battery from the PCB.
8.3.7 Insert the new battery. See Section 10.5 for the battery type. Note: the battery is polarised and only fits one way round. 8.3.8 Thread a new cable tie through holes in the PCB, fasten securely around the battery and trim the end.
8.3.9 Slide the PCB fully back into position and refit the blue support. Ensure the arrow shapes on the support point toward the front. 8.3.10 Replace the rear half of the enclosure.
9. Fault finding WARNING: Before fault finding read the Safety information in Section 1 and the General wiring notes in Section 5.1. Please note that there are hazardous voltages present and only suitably qualified personnel should carry out fault finding. The product must be isolated from the mains supply before touching any of the wiring terminals. Safety may be compromised if the fault finding procedures are not carried out in line with this manual.
Symptom Action 2 1. Switch off the mains supply to the product. 2. Disconnect all signal wires. 3. Switch the mains supply on: If symptoms are still present, return the product for examination. 4. Replace each signal wire in turn until the fault occurs. 5. Investigate and rectify any faults in the wiring, external sensors / transducers and modules associated with that connection. Display flashes on and off (1 second approx.) 3 Explanation The internal power supply is unable to power up.
Operational error messages Any operational errors that occur will be displayed in the run mode, on the alarms and errors screen. Error message 1 Power out 2 Valve failed to open 3 Valve failed to close 4-6 Data timer X invalid 7 Data state MC overflow 42 Cause Action There has been a loss of power to the product during operation. 1. Remove the power from the product. 2. Check that all the wiring is correct. 3. Check that the power supply is secure, i.e. does not suffer from 'brown outs'. 4.
Error message Cause Action Data in the recovery counter has been corrupted. 1. See 'Data timer X 'Invalid' action. 2. Press the OK button to clear. 9 Data in the timer flag register has been lost or corrupted. Values have been restored. 1. See 'Data timer X 'Invalid' action. 2. Press the OK button to clear. 10 Data in the error flag register has been lost or corrupted. Values have been restored. 1. See 'Data timer X Invalid' action. 2. Press the OK button to clear.
10. Technical information 10.1 For technical assistance Contact your local Spirax Sarco representative. Details can be found on order / delivery documentation or on our web site: www.spiraxsarco.com 10.2 Returning faulty equipment Please return all items to your local Spirax Sarco representative. Please ensure all items are suitably packed for transit (preferably in the original cartons). Please provide the following information with any equipment being returned: 1.
10.5 Battery (Clock calendar) Manufacturer Manufacturers part number Spirax Sarco part number Type Voltage Capacity Temperature range Shelf life Working life TADIRAN SL-360 / PT 0965057 AA (PCB tagged) Lithium Thionyl Chloride (Lithium content 0.65 g) 3.6 V 2.4 Ah minimum 0 - 70°C minimum 10 years - With battery switch OFF @ Tamb: 25°C 10 years - Mains power on 35 hours / week @ Tamb: 55°C 10.
10.7 Input technical data Switch box Maximum voltage Maximum current 32 Vdc (no load, open circuit) 3 mAdc (short circuit) Lockout (link) Maximum voltage Maximum pulldown voltage Maximum current 32 Vdc (no load, open circuit) 0.25 Vdc 1.5 mAdc 10.
10.10 Default settings 10.10.1 MODE MENU Allows the valve to be manually opened or closed, automatically opened and closed under the control of the timer Ranges AUTO, OPEN, OFF Default AUTO 10.10.2 DATA MENU TEMP (temperature units) Ranges Default °C or °F °C PRIORITY Ranges Default Resolution (steps) 0 - 9 (Highest priority) 0 (Timer not linked) 1 10.10.
10.10.5 OUTPUT MENU COMMS - ADDRESS (MODBUS communication) Ranges 1 - 247 Default 1 Resolution (steps) 1 COMMS - BAUD (MODBUS communication) Ranges 1200, 9600, 19200 Default 9600 COMMS - IR (Infrared communication) Ranges MASTER or SLAVE Default SLAVE COMMS - IR (units in network) Ranges 1-8 10.10.
10.10.7 TIMER X (1 - 3) MENU DURATION (valve open time) Ranges Default Resolution (steps) Units 0 - 999 0 1 Seconds Note: If the mains power supply drops below the required specification, or power down occurs during a blowdown, the relays will de-energize and close the valve. If the mains supply is restored after the blowdown time has elapsed, the valve will remain shut until the next scheduled blowdown time.
10.10.8 ALARM MENU LIFT (alarms occurs if the valve does not lift of the seat within lift time) Only available if the switch is fitted and selected Ranges ON or OFF Default ON LATCH (alarm relay can be latched until commissioning mode is entered) Only available if the switch is fitted and selected Ranges ON or OFF Default OFF 10.10.
11.
Parameters and register data Register Parameters 6 - Identity Note: When the device is an IR slave and there is a temporary error in the IR Master-Slave comms, an offset of +32768 is added to the identification value of that particular slave stored in the master's database.
IM-P405-39 AB Issue 4 8888 Only visible if an error or alarm has occured Not visible if the switch is not fitted Not visible if the duration = 0 53 Timer 1 is being used and has some spare slots. However, if timer 2 is not used or has filled up the remaining slots. Do not show timer 3. Timer 1 not used (no duration or no days selected). Do not show either timer 2 or 3. The tinted zone indicates a feature that is not always shown.
IM-P405-39 AB Issue 4
IM-P405-39 AB Issue 4 55
IM-P405-39 AB Issue 4
