Operating instructions

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34-500 09/07

OPERATING INSTRUCTIONS

EMBLEM

GAS-FIRED MULTIPLE BOILER HEATING SYSTEM

Installation and service must be performed by a qualified service installer, service agency or the gas supplier.

THIS MANUAL CONTAINS INFORMATION REQUIRED FOR OPERATION AND MAINTENANCE OF THE EMBLEM

GAS-FIRED MULTIPLE BOILER HEATING SYSTEM. REFER TO INDIVIDUAL PRIMERA

AND EPV

BOILER

INSTALLATION AND MAINTENANCE MANUALS FOR INSTRUCTIONS, WARNINGS AND IMPORTANT INFORMATION

ABOUT THE INSTALLATION, OPERATION AND MAINTENANCE FOR EACH OF THE BOILERS IN THIS HEATING

SYSTEM. READ AND FOLLOW ALL INSTRUCTIONS, MARKINGS AND WARNINGS BEFORE ATTEMPTING TO

START AND OPERATE EITHER BOILER.

TO THE INSTALLER: After installation, these instructions must be given to the equipment user or left near the appliance.

Refer to I & M documents 34-50, 34-501 and 34-502 for additional important information.

SPECIAL INSTRUCTIONS TO THE OWNER: Retain this manual for future reference. These instructions contain

important information that will help you in maintaining and operating this appliance.

CHECKING EQUIPMENT BEFORE YOU INSTALL - Upon receiving equipment, check for signs of shipping damage.

Inspect the appliance and all accompanying parts for signs of impact or mishandling. Verify the total number of pieces

shown on packing slips with those actually received. If there is damage or a shortage, contact the carrier immediately.

WARRANTY - Factory warranty does not cover improper installation or operation. (See individual PRIMERA

and EPV

boiler warranties for complete details).

Riverside Hydronics

, LLC - 990 Haltom Road - Fort Worth, Texas 76117 - Tel 1-800-990-5918

Summary of content (10 pages)

PAGE 1
OPERATING INSTRUCTIONS EMBLEM® GAS-FIRED MULTIPLE BOILER HEATING SYSTEM Installation and service must be performed by a qualified service installer, service agency or the gas supplier. THIS MANUAL CONTAINS INFORMATION REQUIRED FOR OPERATION AND MAINTENANCE OF THE EMBLEM® GAS-FIRED MULTIPLE BOILER HEATING SYSTEM.
PAGE 2
CONTENTS TOPIC PAGE General Safety Warnings and Codes 1&2 TOPIC PAGE Heating Boiler System Piping 5 EMBLEM® Overview 2 Piping Illustration 6 Electrical and Water Connections 3 Water Considerations 7 Operation and General Information 4 Lead/Lag Systems General Information 4 8-10 WARNING: Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury, exposure to hazardous materials or loss of life.
PAGE 3
ELECTRICAL REQUIREMENTS A single point 30-amp, 240-volt electrical connection and disconnect has been provided to provide electrical service to both boilers. Both boilers and the skid on which they are resting must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements, with the latest edition of the National Electrical Code ANSI/NFPA No. 70, or in Canada, to the CAE C22.
PAGE 4
OPERATION LOW WATER CUTOFF - Proper function of the low water cutoffs should be verified every six months. See individual boiler Installation & Maintenance manuals for details. OPERATING TEMPERATURE CONTROL - An adjustable digital operating control, TempTrac®, is located in the front control panel of the PRIMERA® boiler. This control uses a remote sensing bulb mounted in the outlet fitting of the EPV® boiler.
PAGE 5
SPECIAL DESIGN APPLICATIONS The EMBLEM® boiler system, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel with the boiler with appropriate valves to prevent the chilled medium from entering the boiler.
PAGE 6
Riverside Hydronics®, LLC - 990 Haltom Road - Fort Worth, Texas 76117 - Tel 1-800-990-5918 6
PAGE 7
WATER CONSIDERATION WATER CONDITIONING - Every new system will have certain harmful substances which remain in the boiler and piping after construction. It is com to find oils, weld slag, and other contaminates within the system. If the foreign materials remain, the boiler could be affected by loss of heat transfer on heat exchanger surfaces and/or an acidic water condition. Boiler life may be reduced as a result of an unclean system.
PAGE 8
A Lead/Lag system sequences the on-off firing of multiple boilers to meet the system load demand and equalize run time for all the boilers in a system. The key to the design of a lead/lag control in a hot water system is the control intelligence to react to changes in system load which are inherently slow without over reacting. The change in boiler output does not immediately result in a change in overall system temperature.
PAGE 9
A variation on this example might be to shift back the set point on the weekend in order to reduce loop temperature and save energy beginning 5:00PM Friday. In this case Sb# would be -20 for the lead boiler -25 for the lag boilers. Target operating temperature would shift from 165 to 145°F. See below. • • • Boiler #1 St1=160, E6=17.0, S6=24.0, Sb6= -20 Boiler #2 St1=160, E6=17.0, S6=24.0, Sb6= -25 Boiler #3 St1=160, E6=17.0, S6=24.0, Sb6= -25 Friday • • • Boiler #1 St1=160, E7=0.0, S7=24.
PAGE 10
LEAD/LAG CONTROL OPTION 3: The EMS performs lead-lag and outdoor reset function by communicating with the TempTrac® control through MODBUS serial protocol. The TempTrac® can be equipped with a TTL to RS485 adapter. In this case the EMS system will directly adjust the operating set point of each EMBLEM® boiler system in order to achieve the desired loop temperature as well as designating lead-lag preference.