They are rated for switching of millivoltage loads.
Triple aquastat relay l8124a manual.
Provide multizone control by using a separate.
Has model l8124c replaced model l8124b.
Bl is 1 4 in.
High limit protection low limit and circulation control operating range low limit f.
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.
Use grounding screw provided.
Provide disconnect means and overload protection as required.
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.
Description high limit protection low limit and circulation control triple aquastat relay with high limit.
Guide to diagnostic troubleshooting for heating boiler aquastat controls.
Use grounding screw provided.
Control case must be connected to earth ground.
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.
Dimension l8124 aquastst relay mounting.
Tr 1 power supply.
L8124 can provide multizone control by using a separate circulator and r845 relay for each zone.
Provide disconnect means and overload protection as required.
We discuss aquastat problems such as improper adjustment improper wiring and relay buzzing or failures.
10 f fixed low limit.
I tried looking for l8124b but it looks like this model number is obsolete.
Control case must be connected to earth ground.
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.
See table 2 and fig.
43 c to 104 c adj.
110 f to 220 f adj.
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.
L8124a b c e g l m aquastatfi relays 3 60 2061š10 table 1.
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.
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.
