Has model l8124c replaced model l8124b.
Triple aquastat relay l8124a manual.
They are rated for switching of millivoltage loads.
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.
High limit protection low limit and circulation control operating range low limit f.
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.
Tr 1 power supply.
Provide disconnect means and overload protection as required.
Use grounding screw provided.
L8124e and l have large transformers and extra terminals for supplying power to low voltage valves.
110 f to 220 f adj.
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.
I tried looking for l8124b but it looks like this model number is obsolete.
I have a l8124b triple aquastat relay installed on my boiler.
Operating range low limit c.
Dimension l8124 aquastst relay mounting.
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.
Provide multizone control by using a separate.
43 c to 104 c adj.
See table 2 and fig.
We discuss aquastat problems such as improper adjustment improper wiring and relay buzzing or failures.
M8822 b1 is 1 4 in.
Bl is 1 4 in.
A multizone control can be provided by using a separate circulator and r845 relay for each zone.
10 f fixed low limit.
This article describes common operating problems with heating system aquastat controls and how these troubles are diagnosed and fixed.
L8124 can provide multizone control by using a separate circulator and r845 relay for each zone.
L8124a b c e g l m aquastatfi relays 3 60 2061š10 table 1.
B contacts are not powered.
Control case must be connected to earth ground.
Provide disconnect means and overload protection as required.
Control case must be connected to earth ground.
Description high limit protection low limit and circulation control triple aquastat relay with high limit.
