Product Overview

The FuelMizer™ (SR501-OR) is a microprocessor-based control designed to regulate

the supply water temperature of a single boiler, based on the outdoor temperature. The

FuelMizer is a boiler reset control and switching relay in one unit; it is ideal for retrofit

application, but may also be used in new installations as well.

Effective Date: 06/12/12

Printed in USA

Supersedes: New

Electronic Controls

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Electronic Controls The FuelMizer™ (SR501-OR) is a microprocessor-based control designed to regulate the supply water temperature of a single boiler, based on the outdoor temperature. The FuelMizer is a boiler reset control and switching relay in one unit; it is ideal for retrofit application, but may also be used in new installations as well.
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SR 501OR- 6 AMP INPUT 120 VAC RELAY ZONE 1 120 VAC N H N H Submittal Data Information FuelMizer™ Instruction Sheet # 102-420 Supersedes: New Effective: 06/12/12 N POWER INPUT (120 VAC) SYSTEM CIRCULATOR (OPTIONAL) H ONE ZONE INSTALLATION W/O INDIRECT DHW Application The FuelMizer (SR501-OR) includes functions such as automatic reset ratio calculation, warm weather shut down (WWSD), minimum boiler temperature setting, and boiler differential setting.