It is the primary replacement for Weil McLain CG

Whether performing a retrofit or a new installation

If the meter shows infinite resistance or "OL" while the part is cool

a different model in the T-4000 accessory line is required

or the boiler failing to reach full thermal capacity due to restricted fuel flow

Copeland Comfort Control (Alco) 061235 Drier Core It is the primary replacementThe Copeland Comfort Control (Alco) 061235, also known as the W 48 HH drier core, is a specialized 48 cubic inch burnout filter drier core engineered for intensive system cleanup following a compressor motor failure. This high acid filter drier core utilizes a proprietary desiccant blend specifically formulated to sequester high concentrations of acid, moisture, and solid contaminants, preventing secondary failures in HVACR refrigeration systems.