I meant for the new one. But I would love to see the old one and its controls
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Nothing too exiting to see there, the old ice cube relays board was made by P&B and are not longer available, the liquid line dryers were fastened to the bottom of the unit and with time they rust out and leak, the heat exchanger lasted a lot longer than the predators, the inducer assembly rots out quick, spark module fails....POS
The D1SS is the next generation of the SS series. I cut my teeth on these and miss them very much (sniff, sniff). pour model indicates a gas-fired 400,000 btu 230V 3-phase custom unit. I remember correctly, the 240 has an 031-00254 relay board with 24V & 120V relays. The board was troublesome after a few years of service and would break the solder connections to the relay bases. You can wiggle the relays and sometimes get them to run. The best bet is to remove the board (or turn it upside-down...soooo many wires) and re-solder the broken connections. You have to look closely to see where they are broken. If you have 24V at 119 & common (123?) and also 24V at W1, this may be your problem. There is a safety switch in the evap section near the blower housing, but I forget if it knocks out the entire unit or just the heat. The CamStat limit controls the fan when in auto mode. MAN, it feels good to talk about these again!!