Raypak Y-200 manual Safety Instructions, Introduction, Please Register, Concept of Operation

Y–200 SERIES ELECTRONIC BOILER CONTROL

SAFETY INSTRUCTIONS

NOTE: These instructions are intended for use by qualified personnel who are specifically trained and experienced in the installation of this type of equipment and related system components. Installation and service personnel may be required by some states to be licensed. If your state requires certification, be sure your contractor bears the appropriate license. Only qualified persons shall attempt to repair this equipment. Repair must be according to these instructions.

WARNING: Improper installation, adjustment, alteration, service or maintenance may damage the equipment, create a hazard resulting in asphyxiation, explosion, fire, electric shock, personal injury or property damage, and will void the warranty.

CAUTION: MORE THAN ONE (1) SUPPLY SOURCE. THIS APPLIANCE HAS PROVISIONS TO BE CONNECTED TO MORE THAN ONE (1) SUPPLY SOURCE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DISCONNECT ALL SUCH CONNECTIONS BEFORE SERVICING.

CAUTION: RISK OF ELECTRIC SHOCK. MORE THAN ONE (1) DISCONNECT SWITCH MAY BE REQUIRED TO DE-ENERGIZE THE EQUIPMENT BEFORE SERVICING.

Thank you for selecting the Raypak Y–200 Series Electronic Boiler Control. It is our sincere hope that you will enjoy its outstanding design, ease of use and energy-saving features.

Please Register

Before proceeding any further, please take a moment to complete the enclosed user registration form and mail a copy to: Raypak, Inc., Department Y–200, 2151 Eastman Avenue, Oxnard, CA 93030.

INTRODUCTION

The Y-200 Series Electronic Boiler Control (controller) is a microprocessor-based boiler management system designed to control either single or multiple stage-fired boilers. Ideally suited for use in hydronic heating and domestic hot water supply applications, this controller has been engineered with the flexibility and raw power to tame the most demanding control situations. Utilizing state-of-the-art control algorithms, the Y-200 Series minimizes operating costs by maximizing ener- gy efficiency.

Concept of Operation

The controller is an outdoor reset control that is perfect for managing hydronic heating systems. Two tempera- ture sensors are used to control system response. One sensor is used to monitor the outdoor tempera- ture, the other sensor is used to regulate the temperature of the system water. By varying the tem- perature of the heating medium in response to changes in the outdoor temperature, the Y-200 Series provides the ultimate in personal comfort and efficien- cy of operation.

The controller is also well adapted to domestic hot water supply duty. By disabling the outdoor reset func- tion, the Y-200 behaves as an energy-wise boiler sequencer. With the ability to control multiple firing stages, and such features as a revolutionary selec- table lead-lag protocol, the Y-200 redefines "controllability" in domestic water applications.

The controller is equipped with an energy-saving warm-weather shutdown capability. When the outdoor temperature rises above an adjustable "Outdoor Cut- off Temperature," the system automatically transitions to a dormant state. This prevents the system from wasting energy trying to heat a building that is already at a comfortable temperature.

Once the outside temperature has fallen to the point that the system requires heat input to maintain the building temperature, the Y-200 is reactivated and will hold the system temperature at the required point.

For replacement items, see page 38.

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