Boiler house Level controls
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Safety information, installation and maintenance This document does not contain sufficient information to install the product safely. See the Installation and Maintenance Instructions provided with each unit. Installation note: The probe is designed to work with a Spirax Sarco LCS3050 controller. Two level probes and a limit switch are normally installed on each boiler for safety reasons. In many countries a first and second low alarm is used. The LP40 in conjuction with the LCS3050 is used to provide the second low alarm. The first low alarm can be provided using the MIN alarm output of the level controller. A protection tube is required for boiler shell or turbulent tank fitting. Install the probe in a ½ " BSP female connection. Note: Do not install the probe outdoors without additional weather protection. Warning: It is essential that the probe tip of the LP40 low level alarm probe does not touch any part of the boiler. Standards require that the tip is at least 14 mm from the protection tube, and this must be checked when the probe is installed. The product is supplied with a spring clearance checking set. Refer to separate literature for details. Spare sets are available - see below. Maintenance note: No special maintenance is required. Boiler water level controls do, however, require periodic testing and inspection, which is described in separate literature.
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How to specify High integrity self-monitoring low level alarm probes shall be Spirax Sarco type LP40 with austenitic stainless steel bodies and probe tips, PTFE probe sleeving, and cable socket with Pg 11 cable gland. They must have a comparator tip to compensate for scaling, and a positively located probe tip. They must be used with an appropriate Spirax Sarco controller.
How to order Example: 1 off Spirax Sarco LP40 high integrity, self-monitoring, low level alarm probe with 1 000 mm (39.4") tip.
Spare parts The spare parts available are detailed below. No other parts are supplied as spares. Available spares LP40 tip retaining pins Stock No. 4024780
Pack of 10
Spring clearance checking set
Stock No. 4024781
1 set (2 springs)
How to order spares Always order spares by using the description given in the column headed 'Available spares' and state which product they are for. Example: 1 off Spring clearance checking set for a Spirax Sarco LP40 high integrity, self-monitoring low level alarm probe.
TI-P693-17 EMM Issue 1
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LP40 High Integrity, Self-monitoring Low Level Alarm Probe
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