Triple Aquastat Relay L8124a Manual

See table 2 and fig.

Triple aquastat relay l8124a manual.

These aquastat relays have a diaphragm powerhead and microswitch assembly that respond to temperature changes in the boiler water. L8124e and l have large transformers and extra terminals for supplying power to low voltage valves. Control case must be connected to earth ground. Operating range low limit c.

43 c to 104 c adj. Control case must be connected to earth ground. 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. M8822 b1 is 1 4 in.

Use grounding screw provided. Tr 1 power supply. A multizone control can be provided by using a separate circulator and r845 relay for each zone. 110 f to 220 f adj.

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. Description high limit protection low limit and circulation control triple aquastat relay with high limit. I tried looking for l8124b but it looks like this model number is obsolete. We discuss aquastat problems such as improper adjustment improper wiring and relay buzzing or failures.

They are rated for switching of millivoltage loads. Guide to diagnostic troubleshooting for heating boiler aquastat controls. 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. This article describes common operating problems with heating system aquastat controls and how these troubles are diagnosed and fixed.

Provide multizone control by using a separate. L8124a b c e g l m aquastatfi relays 3 60 2061š10 table 1. Bl is 1 4 in. High limit protection low limit and circulation control operating range low limit f.

L8124 can provide multizone control by using a separate circulator and r845 relay for each zone. 10 f fixed low limit. Provide disconnect means and overload protection as required. I have a l8124b triple aquastat relay installed on my boiler.

B contacts are not powered. Use grounding screw provided. 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. Provide disconnect means and overload protection as required.