safgard 250 Quick Start Manual
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MODELS 250/250WCPump ControlLow Water Cut-OffCombinationOperating Voltage ................. 120VACMax. Steam Pressure ............ 250PSIBurner Relay ............. 10 FLA, 60 LRAPump Relay................ 10 FLA, 60LRAAlarm Relay ................ 10FLA, 60LRAPower Consumption ................ 13 VAThe series 250 control requires regular maintenance for safe operation. Before installingplease read and understand the maintenance procedures listed on page 7 of this manual aswell as any required maintenance procedures listed in your boiler manufacturer’s instructions.Electrical shock hazard. To prevent electrical shock, death or equipment damage, disconnect power supply before installingor servicing control. Only qualified personnel may install or service this control in accordance with local codes and ordinances.Read instructions completely before proceeding.Frozen pipes/water damage. Central heating systems are prone to shut down as a result of power or fuel outages, safetyrelated fault conditions or equipment failure. Installation of freeze protection monitoring or other precautions is recommended forunattended dwellings in climates subject to sustain below-freezing temperatures.Disconnect power supply before beginning installation to prevent electrical shock or equipment damage.This low water cut-off must be installed in series with all other limit and operating controls installed on the boiler. After installation,check for proper operation of all of the limit and operating controls, before leaving the site.To prevent serious personal injury from steam and hot water make sure there is a discharge line from the blow-down valve to aproper place of disposal.To prevent a fire, do not use this low water cut-off to switch currents over 7.4A, 1/3 HP at 120 VAC or 3.7A, 1/3 HP at 240 VAC,unless a starter or relay is used in conjunction with it.Always install a new control on a new boiler system. Never use a control that has already been used on a previous appliance.Failure to follow this warning could cause property damage, personal injury or death.1Read and understand these instructions completely before installing or servicing this control. Save these instructions forfuture reference.Only qualified personnel may install or service the control in accordance with local codes and ordinances.Secondary (redundant) Low Water Cut-Off controls must be installed on all steam commercial boilers. At least two con-trols must be connected in series with the burner control circuit to provide redundant protection in the event the boilerexperiences a low water condition.NOTICEPLEASE READ BELOW BEFORE INSTALLING• No moving parts to stick, wear or hang-up• No replacement or rebuilding of floats or mechanical parts• Reliable electronic design• Made in the USA.MODEL 250 MODEL 250WCWARNING |
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