Tr 1 power supply.
Triple aquastat relay l8124a manual.
L8124 can provide multizone control by using a separate circulator and r845 relay for each zone.
B contacts are not powered.
We discuss aquastat problems such as improper adjustment improper wiring and relay buzzing or failures.
10 f fixed low limit.
Provide disconnect means and overload protection as required.
Guide to diagnostic troubleshooting for heating boiler aquastat controls.
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.
Operating range low limit c.
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.
Control case must be connected to earth ground.
These aquastat relays have a diaphragm powerhead and microswitch assembly that respond to temperature changes in the boiler water.
M8822 b1 is 1 4 in.
A multizone control can be provided by using a separate circulator and r845 relay for each zone.
They are rated for switching of millivoltage loads.
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.
Use grounding screw provided.
I have a l8124b triple aquastat relay installed on my boiler.
Provide disconnect means and overload protection as required.
See table 2 and fig.
Has model l8124c replaced model l8124b.
43 c to 104 c adj.
Description high limit protection low limit and circulation control triple aquastat relay with high limit.
Provide multizone control by using a separate.
I tried looking for l8124b but it looks like this model number is obsolete.
Dimension l8124 aquastst relay mounting.
L8124a b c e g l m aquastatfi relays 3 60 2061š10 table 1.
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.
Use grounding screw provided.
This article describes common operating problems with heating system aquastat controls and how these troubles are diagnosed and fixed.
L8124e and l have large transformers and extra terminals for supplying power to low voltage valves.
