Related Manuals for S&S Northern Merlin 3000S
Summary of Contents for S&S Northern Merlin 3000S
- Page 1 Merlin 3000S USER GUIDE Gas Safety Products Merlin 3000S Energy saving ventilation interlock and gas control system User Guide Please read this guide carefully and retain for future use. Rev: 07 05-19...
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Page 2: Table Of Contents
Merlin 3000S USER GUIDE Contents About your new 3000S system ....................3 System Positioning ........................4 3000S Circuit Board ......................... 4 POWER IN .................................. 5 GAS VALVE ................................5 CONTACTOR ................................5 FAN CURRENT SENSOR - Extract Fan ........................5 FAN CURRENT SENSOR - Supply Fan ........................ -
Page 3: About Your New 3000S System
USER GUIDE About your new 3000S system The Merlin 3000S system is designed to vary the speed of ventilation based on multiple factors; 1) Real-time gas usage via a turbine gas meter; 2) Carbon dioxide (CO ) detected levels in the area;... -
Page 4: System Positioning
Merlin 3000S USER GUIDE System Positioning The control panel is designed for surface mounting using 4 mounting screws. 3000S Control Removing the cover on the panel gives access to the circuit board (PCB). Panel Remove the PCB before drilling entry holes into the case. -
Page 5: Power In
Merlin 3000S USER GUIDE 1. POWER IN A 100-240VAC electrical supply should be supplied to the panel. This should be fused at 3A. 2. GAS VALVE The gas solenoid valve should be powered using the terminal detailed [L N E GAS VALVE]. -
Page 6: Pressure Sensor
Merlin 3000S USER GUIDE 9. PRESSURE SENSOR The terminals are detailed [PRESSURE SENSOR] - [+ / - / IN]. Connect to the gas pressure transducer (supplied separately) by screwing into the downstream port on the gas solenoid valve. Please ensure this is wired to the 3000S as shown. -
Page 7: Co2 Monitor
TBX – Turbine Gas Meter has two types of pulse output – 'unit pulse' and 'high density pulse'. The Merlin 3000S requires a high density pulse wire. 16. FIRE PANEL The terminal for fire alarms is detailed on the circuit board as [FIRE PANEL]. These connections are linked out as a factory setting. -
Page 8: Optical Sensor (Zone 1)
Merlin 3000S USER GUIDE 18. OPTICAL SENSOR (ZONE 1) The terminals detailed on the circuit board as [OPTICAL SENSOR] - [ + / - ] [ 1 / 2 ] are wired to the optical sensor (supplied separately). 19. DUCT TEMP (ZONE 1) This is a low resistance connection to the duct temperature sensor to drive fans on an automatic varied speed based on extraction duct temperature levels. -
Page 9: 0-10V Output - Extract Fan
Merlin 3000S USER GUIDE 22. 0-10V OUTPUT – Extract Fan The terminals for the 0-10VDC outputs are detailed on the circuit board as [EXTR. FAN] & [SUPP. FAN]. These connections are used to regulate external fan speed controllers (supplied separately) which can accept this control signal. -
Page 10: Boost Button
Merlin 3000S USER GUIDE Boost Button To boost the ventilation and prompt maximum fan speed - Press and Release the [Boost] button located on front fascia and the pre-selected boost time will display on screen. When boost time reaches zero, the fans will automatically return to normal operation mode. -
Page 11: Installation Settings
Merlin 3000S USER GUIDE Installation Settings SETTINGS 1 menu Open Panel Ensure the [SETTINGS 1&2 DIP SWITCH] is OFF. Turn the key switch OFF. [SETTINGS 1 DIP SWITCH] - Switch it ON. Turn the key switch to ON. -
Page 12: Settings 1 Explanation
PROVE TIME This can be set to 30, 45, 60, 75 or 90 seconds. The Merlin 3000S has an option for cooling the duct for a period of time when the system is switched off by key. Fan Overrun can be set to OFF (factory set) or continue to run from a period of FAN OVERRUN 1 to 30 minutes. -
Page 13: Settings 2 Explanation
Calibration can take up to 3 minutes. Whilst calibrating, the screen opposite will be displayed The Merlin 3000S will then confirm successful calibration If the system encounters a problem – the screen may display the following; Too many pulses Not enough pulses... - Page 14 SPEED WE DO NOT RECOMMEND A SUPPLY FAN SPEED HIGHER THAN EXTRACT FAN SPEED. The Merlin 3000S has a built-in fan speed control - ON/OFF feature. EXTRACT FAN ENABLE This can work as N/O or N/C (NC default). The Merlin 3000S has a built fan speed control - ON/OFF feature.
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Page 15: Warning Status
Merlin 3000S USER GUIDE Warning Status HIGH USING 0-10V INPUT TERMINALS When CO gas is detected above alarm level (see CO Monitor manual) the screen will appear and the fans will drive at maximum speed. When the CO gas returns below alarm level, the system will return to normal operation. -
Page 16: Fault Status
Merlin 3000S USER GUIDE Fault Status EMERGENCY STOP If an emergency stop button (remotely or direct) is pressed, the gas and contactor will shut off. Fans can be driven in a combination upon emergency stop activation– see settings. The Emergency Stop button must be reset before restarting the system. - Page 17 If an extract fan fault is detected for longer than 20 seconds - the gas, contactor and fans will all shut off. Solid Fuel Protection The Merlin 3000S has a built-in solid fuel protection feature. This is factory set to OFF. When the system is switched off and the solid fuel protection is...
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Page 18: 3000S Wiring Spec
Merlin 3000S USER GUIDE 3000S Wiring Spec HIGH VOLTAGE POWER IN: Mains Input 100-240VAC Single Phase. GAS VALVE: Gas solenoid valve power output, 100-240VAC, Max 3A CONTACTOR: Electric contactor power output, 100-240VAC, Max 3A LOW VOLTAGE Extract fan current switch or pressure differential switch. - Page 19 Merlin 3000S USER GUIDE Rev: 07 05-19...
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Page 20: Manufacturer's Warranty
Merlin 3000S USER GUIDE Manufacturer’s Warranty 3 Year Limited Warranty Warranty coverage: The manufacturer warrants to the original consumer purchaser, that this product will be free of defects in material and workmanship for a period of three (3) years from date of purchase. The manufacturer’s liability hereunder is limited to replacement of the product with repaired product at the discretion of the manufacture.
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