Triple Aquastat Relay L8124a Manual

Product data and specifications product data for l8124a l8124b l8124c l8124e l8124g l8124l l8124m aquastat relays english maintenance product reference materials 2015 residential combustion application selection and cross reference guide.

Triple aquastat relay l8124a manual.

L8124a b c e g l m aquastatfi relays 3 60 2061š10 table 1. Provide disconnect means and overload protection as required. Bl is 1 4 in. L8124 can provide multizone control by using a separate circulator and r845 relay for each zone.

Description high limit protection low limit and circulation control triple aquastat relay with high limit. High limit protection low limit and circulation control operating range low limit f. Dimension l8124 aquastst relay mounting. We discuss aquastat problems such as improper adjustment improper wiring and relay buzzing or failures.

This article describes common operating problems with heating system aquastat controls and how these troubles are diagnosed and fixed. M8822 b1 is 1 4 in. They are rated for switching of millivoltage loads. I tried looking for l8124b but it looks like this model number is obsolete.

And m relays t87f r845 relay ho pump oo 1 8124e aquastat relay t87f r845 relay pump low voltage gas valve eg vr8300 t87f r845 relay pump fig. When the thermostat is calling for heat the boiler does not come on unless i tap the side of the controller and then the burners come on. 43 c to 104 c adj. Guide to diagnostic troubleshooting for heating boiler aquastat controls.

L8124e and l have large transformers and extra terminals for supplying power to low voltage valves. Use grounding screw provided. These aquastat relays have a diaphragm powerhead and microswitch assembly that respond to temperature changes in the boiler water. 10 f fixed low limit.

I have a l8124b triple aquastat relay installed on my boiler. L8124a c e l and m aquastat relays t87f t87f t87f l8124a r845 relay r845 relay l1 c1 c2 b2 hot pump pump pump r8184 c554 orange burner black ignition power supply. A multizone control can be provided by using a separate circulator and r845 relay for each zone. Has model l8124c replaced model l8124b.

Control case must be connected to earth ground. 110 f to 220 f adj. See table 2 and fig. Use grounding screw provided.

B contacts are not powered. Provide disconnect means and overload protection as required. Tr 1 power supply. Honeywell l8124a1015 high limit protection low limit circulator vertical mount triple aquastat relay high 10 f low limit 10 25 adj differential features immersion type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems.