When you go installing thermostats that draw more current than that, you start running into problems. 40 VA / 24V = 1.6667 amperes In most cases the only things on the secondary side of the transformer are switches and relays, so this usually is sufficient. However, since the transformer is only rated at 40 VA (), the maximum current on the secondary side of the transformer would only be 1.66666667 amperes. Though you have not shown the wiring in any of the photos, so it's difficult to give a better description than that. According to the wiring diagram, the transformer should be installed between the T1 and T2 terminals. Cab heater pdf manual download item’s name code category type of product 8″ fan blade chromalox edb 2 manual mod rfi.Ĭlick for larger views. 1620 chromalox manual this is the exact model numb. I have a Chromalox EDB-2 electric furnace and need. So how can I connect the transponder to the boiler? The HVAC consultant felt that the boiler could not supply sufficient power. Unfortunately when we attempted to use the thermostat, the transponder lost power. An HVAC consultant was able to supply power to the honeywell transponder.
The LV terminals are numbered T1, T2 and 1-5. I've enclosed photos of the inside of the boiler.