Summary of Contents for Magikist HWG40
- Page 1 MODEL HWG40 MODEL HWG20 GAS FIRED COMMERCIAL & INDUSTRIAL PRESSURE WASHER HEATERS INSTRUCTION MANUAL V3.02 For heaters equipped with ProSafe II control and 24V electronic ignition (HSI) or 24V standing pilot...
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Page 3: Table Of Contents
TABLE OF CONTENTS 1.0 INTRODUCTION....................1 2.0 IMPORTANT OPERATING CONDITIONS ............2 3.0 SAFETY ......................2 4.0 INSTALLATION 4.1 LOCATION..................3 4.2 MOUNTING ..................3 4.3 GAS SUPPLY ..................3 4.4 VENTING....................3 4.5 AUTOMATIC VENT DAMPER............3 4.6 POWER VENTER ................4 4.7 FLOW SWITCH..................4 4.8 INLET PLUMBING ................4 4.9 OUTLET PLUMBING .................4 4.10 ELECTRICAL CONNECTIONS ............5 5.0 PRE-OPERATION CHECKS... - Page 4 this page was intentionally left blank...
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Page 5: Introduction
The ProSafe II coil freeze warning should the temperature in the flue HWG40 withstands years of use and will not rust. Both models are available with either electronic ignition control will effectively and safely control the optional (HSI) or standing pilot. -
Page 6: Important Operating Conditions
2.0 IMPORTANT OPERATING CONDITIONS Failure to comply with any of these conditions invalidates the warranty. Pressure - The water pressure supplied to the water Gas Installation- Gas piping and installation of these inlet of the heater must never exceed the maximum gas water heaters must be performed by qualified water pressure rating of the heater. -
Page 7: Installation
Mounting holes are provided on 4) Use of type “B” venting is recommended and the inside bottom of the heater. The HWG40 has must be installed in accordance with C.G.A. four 1/2” holes while the HWG20 has three 1/2”... -
Page 8: Power Venter
WATER must be made with high INLET power venters. Other power venters are neither pressure hose rated for approved not tested for use with the HWG40 or the operating pressure the HWG20 heaters. of the pump and the Figure 4.8.1 water outlet temperature 1) Observe C.G.A. -
Page 9: Electrical Connections
Duplicate black wires for convenience. There are two typical wiring configurations for the On some heaters this wire may be brown. HWG40 heater. The first configuration is utilized Figure 4.10.2 when the heater is installed in conjunction with a Even though in most cases it is not recommended Magikist control panel such as the CPTX timed shutdown control panel. - Page 10 Figure 4.10.5 Figure 4.10.3 II control If a Magikist power venter is installed, the power The EXT-FLOW connection (blue wire) provides venter must be wired to the P an external signal as to whether the flow switch is according to the separate document HWG-PV opened or closed.
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Page 11: Pre-Operation Checks
5.0 PRE-OPERATION CHECKS THE FOLLOWING PRE-OPERATION CHECKS MUST BE CARRIED OUT, PREFERABLY BY A LICENSED GAS FITTER, AFTER INSTALLATION OF THE HEATER AND BEFORE OPERATION. 5.1 FLUSH DEBRIS FROM THE SYSTEM source supplying water to the heater such that II control should turn During shipment and installation of your heater, water is flowing through the heater. -
Page 12: Check Ignition Of Main Burners
USED ONLY BY TRAINED OPERATORS VENTER ON indicator should be on. For ADVERTISSEMENT: installations that do NOT utilize a Magikist RISQUE D’INJECTION ET DE BLESSUREES control panel and have wired the EXTERNAL GRAVES. SE TENIR À L’ÉCART DU JET. NE PAS CONTROL to an external switch, relay, or DIRIGER LE JET DE SORTIE VERS D’AUTRES... -
Page 13: Pro Safe Ii Control
Connections to ProSafe II II control. The HWG20 and HWG40 heaters are designed to Following is a description of the indicators and their provide hot water on demand at a given temperature function on the P setting. -
Page 14: Power Indicator
II control is indicating a warning that 6.2 POWER INDICATOR If the FLOW ON indicator is flashing slow, the II control is indicated by the buzzer sounding and The power-up state to the heater and the P there is water flow through the heater and that it the temperature setting displaying 888 for 1 has been continuous for at least 10 minutes. -
Page 15: Flue Status Indicator
The P II control will open your control to operate the Magikist damper effectively If your heater is equipped with a Magikist power and safely. The P II control will venter, the POWER VENTER ON indicator is on damper whenever there is water flow through the only when air flow in the power venter is proven. -
Page 16: Pro Safe Ii Error & Warnings
I I I I ERRORS & WARNINGS 7.0 P II control indicates error conditions via II control indicates warning conditions 7.1 ERROR CONDITIONS 7.2 WARNING CONDITIONS The P The P the indicator lights and the temperature setting display. via the indicator lights. Unlike error conditions, warning Error conditions require immediate attention in order to conditions do not prevent the heater from firing. -
Page 17: Electronic Ignition Operation
8.0 ELECTRONIC IGNITION OPERATION II control no longer indicates REQUEST This section is applicable only to heaters which utilize delay period, until the pilot is successfully lit or the electronic ignition (HSI). FOR HEAT. When there is a request for heat as shown by the II control signals the SmartValve REQUEST FOR HEAT indicator on the P If after successful lighting of the pilot, the SmartValve... -
Page 18: Maintenance
EXTINGUISH ANY OPEN FLAME. IF THE cleaning scale and mineral deposits from steel ODOUR PERSISTS, CALL YOUR coils, such as Magikist M de-liming acid. AGIK INSTALLER IMMEDIATELY. ADVERTISSEMENT: To clean the heater coil of scale build-up, follow SI UNE ODEUR DE GAZ EST DÉCELÉE, the directions provided with the coil cleaner. -
Page 19: Helpful Information
10.0 HELPFUL INFORMATION 10.1 COIL CONDENSATION 10.4 USE OF ACIDS During the operation of your heater, you may If acids of any type are used then a form of notice water in the base of the heater or you may downstream chemical injection or suitable check hear the sizzling of water drops falling on the valve should be used to protect the coil. -
Page 20: Troubleshooting
11.0 TROUBLESHOOTING Symptom Probable Cause Corrective Action •Heater does not power-up •Power to heater not turned on. •Turn on power supply to the heater. (POWER indicator on P control does not turn on). •24 VAC power not connected to •See section 4.10 ELECTRICAL brown &... - Page 21 Symptom Probable Cause Corrective Action •EXTERNAL CONTROL indicator is •If the installer of your heater has •Enable the external master always off. utilized an external master enable/disable. enable/disable for the heater (i.e. a keyswitch to prevent unauthorized use), then that master enable/disable is not enabled (i.e.
- Page 22 Symptom Probable Cause Corrective Action •Temperature setting display •Communicaton problem with flue •Check connection of flue sensor to flashes E10 and FLUE STATUS sensor (open). II. Replace flue sensor if indicator is flashing. necessary. •Temperature setting display •Communicaton problem with flue •Check connection of flue sensor to flashes E11 and FLUE STATUS sensor (short).
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Page 23: Parts List
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- Page 25 HWG20 & HWG40 Wiring 24 volt hot surface ignition systems (HSI) brown 24vac Electrical black supply** Connection black* PROSAFE II CONTROL *Duplicate black black* wires for purple convenience purple Refer to manual for IMPORTANT: If the 24 vac supply blue...
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Page 26: Wiring Diagram
Pilot Sensor/Ignitor green high voltage lead Burner Bar Ground HWG20 & HWG40 Wiring 24 volt standing pilot systems brown 24vac Electrical black supply** Connection black* PROSAFE II CONTROL *Duplicate black black* wires for purple convenience purple IMPORTANT: If the... -
Page 27: Specifications
12.0 SPECIFICATIONS HWG40 Type ....................Instantaneous steel coil Gas supply ..................Natural (-N models)/LP (-P models) Coil specifications ...............3/4” I.P.S. steel pipe Sch 80 Maximum recovery capacity (100°F rise)........331.9 U.S. gallons per hour Maximum operating pressure............3000 P.S.I. Maximum operating temperature ..........200°F Minimum water flow rate .............1.0 U.S. gallons per minute Flue outlet size ................10”... - Page 28 Parts originally manufactured by Magikist Ltd. must be used or this limited warranty will be voided. Magikist Ltd. will be absolved of any liability if parts other than Magikist Ltd. manufactured parts are used.
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