Ambient EB-16 Installation, Operating And Service Instructions

Electric hot water boiler

Hide thumbs

Table of Contents

Quick Links

Download this manual

Installation, Operating and Service Instructions

Models:

• EB-16

• EB-20

• EB-24

Manual Contents

Read Before Proceeding . . . . . . . . . . . . . . . . . 2

2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 5

4. Locating Boiler . . . . . . . . . . . . . . . . . . . . . . . . 6

5. Hydronic Piping . . . . . . . . . . . . . . . . . . . . . . . . 7

6. Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical Connections/Wiring . . . . . . . . . . . 11

8. Sequence of Operation . . . . . . . . . . . . . . . . . 16

9. Control Operation . . . . . . . . . . . . . . . . . . . . . 17

10. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

11. General Maintenance . . . . . . . . . . . . . . . . . . 21

12. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 22

13. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . 25

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

TO THE INSTALLER:

Affix these instructions adjacent to boiler.

Provide model number and serial number when

seeking information and support.

TO THE CONSUMER:

Retain these instructions for future reference.

Contact heating installer or technician for all issues

and support.

112182-03 - 8/23

Page

Electric

Installation, Operating & Service Manual

Electric Hot Water Boiler

9700609

Table of Contents

Need help?

Do you have a question about the EB-16 and is the answer not in the manual?

Questions and answers

Summary of Contents for Ambient EB-16

Page 1: Table Of Contents
Installation, Operating & Service Manual Electric Hot Water Boiler Installation, Operating and Service Instructions 9700609 Models: • EB-16 • EB-20 • EB-24 Manual Contents Page Read Before Proceeding ....2 2.
Page 2: Read Before Proceeding
Electric Installation, Operating & Service Manual Read Before Proceeding Read and understand this document before proceeding with installation or maintenance. Boiler is listed with Massachusetts Board of Plumbers and Gas Fitters. See Massachusetts Boards of Plumbers and Gas Fitters website for the latest Approval Code (https://licensing.reg.state.ma.us/pubLic/pl_products/pb_pre_form.
Page 3 Electric Installation, Operating & Service Manual Read Before Proceeding (continued) Installer or Qualified Service Agency Read 8. Inspect shipment carefully for signs of damage. Any claim for damage for shortage in shipment Before Proceeding must be filed immediately against carrier by consignee.
Page 4: Introduction
Electric Installation, Operating & Service Manual Introduction Introduction Product Description • Size boiler based on total heat load of the Electric Boiler is a heating device that converts building. electrical energy to hot water. • Calculate maximum hourly heat loss for each Kilowatts of Electricity Used per Hour x 3412 = British heated space following procedures described in Thermal Units (BTUH) Available Per Hour for Heating.
Page 5: Specifications
*Recommended Field Wire Size per National Electric Code (NEC). Check with latest version of NEC and local codes. No more than three (3) current-carrying conductors in raceway. Based on ambient temperature of 86ºF (30ºC). Other ambient temperatures see NEC or CEC for correction factors. UL-834, Section 14.2.
Page 6: Locating Boiler
Electric Installation, Operating & Service Manual Locating Boiler 10. Minimum clearances to combustible surfaces: WARNING TOP........9 in. Electrical Shock Hazard. FRONT......... 2 in. Do not install boiler underneath a water source. LEFT SIDE......12 in. Failure to do so could result in severe personal injury and death.
Page 7: Hydronic Piping
Table 5-2: Maximum Temperature Rise °F Circulating System Boiler Model @ 3.0 GPM 1. Size circulator(s) based on total hydronic system EB-16 pressure drop and designed flow rate. EB-20 2. To prevent rapid cycling on the high limit, EB-24 adequate flow is required.
Page 8 Electric Installation, Operating & Service Manual Hydronic Piping (continued) 112182-03 - 8/23...
Page 9 Electric Installation, Operating & Service Manual Hydronic Piping (continued) To System Flow Check Valves Flow Check Valves Optional Full Port Isolation Valves Optional Full Port Isolation Valves Heating Circulators Heating Circulators Optional Full Port Optional Full Port Isolation Valves Isolation Valves Fill Valve Backflow Preventer...
Page 10: Water Quality
Electric Installation, Operating & Service Manual Water Quality 1. Poor water quality causes oxidation, scaling, corrosion, and fouling, which can severely damage the heating element and pressure vessel. NOTICE: Warranty does not cover component failure caused by scale build-up or poor water conditions.
Page 11: Electrical Connections/Wiring
Electric Installation, Operating & Service Manual Electrical Connections/Wiring Boiler Wiring CAUTION WARNING Use torque device to properly tighten line to DO NOT alter any internal wiring or bypass any built-in safety limit controls. Doing so will result prevent overheating. in unsafe operation. 1.
Page 12 Electric Installation, Operating & Service Manual Electrical Connections/Wiring (continued) System Wiring CAUTION Follow directions and wiring diagrams from accessory relay panel manufacturers. Do not use the 24 VAC transformer to power zone valves or other accessories. Multizone Wiring R(T) and top DHW are electronically connected on the control board.
Page 13 Electric Installation, Operating & Service Manual Electrical Connections/Wiring (continued) System Wiring CAUTION Follow directions and wiring diagrams from accessory relay panel manufacturers. Do not use the 24 VAC transformer to power zone valves or other accessories. Multizone Wiring T-Stat T-Stat T-Stat Power Power...
Page 14 Electric Installation, Operating & Service Manual Electrical Connections/Wiring (continued) Low Voltage Heating Elements Low Voltage Heating Elements R(T) R(T) Connections Connections W(T) W(T) R(T) R(T) W(T) W(T) Boiler Boiler Control Board Control Board 5A Fuse 5A Fuse [C2] [C2] [C1] [C1] CIRC CIRC...
Page 15 Electric Installation, Operating & Service Manual Wiring Diagram ELEMENT 1 ELEMENT 2 ELEMENT 3 ELEMENT 4 112182-03 - 8/23...
Page 16: Sequence Of Operation
Electric Installation, Operating & Service Manual Sequence of Operation Heating Element LED Indicators HEATING ELEMENTS (Green) DEMAND PUMP Heating Demand Pump LED Indicator LED Indicator (Green) (Green) LED Display Mode and Power (Red) MODE/PWR DOWN Selection Button Up and Down Adjustment Buttons Figure 8-1: Boiler Controller Mode and Power Selection Button - Turns boiler on and off, selects mode and configuration settings...
Page 17: Control Operation
Electric Installation, Operating & Service Manual Control Operation Initial Start Up • LED’s for heating elements, pump status and heat call will illuminate as each is energized. If safety • When electrical power is applied control displays circuit is open, elements will not energize and firmware revision code.
Page 18 Electric Installation, Operating & Service Manual Control Operation (continued) are open, heating elements are prevented from • Boiler must be ON and configuration setting energizing and "FLO" is displayed. Sensor input is for dFt must be set to Y. During Dry Fire Test only active while control is attempting to energize pump is energized and first heating element is heating element(s).
Page 19 Electric Installation, Operating & Service Manual Control Operation (continued) Anti-Short Cycle Timer, Water Temperature High Limit Alarm Satisfied • High-limit alarm is always monitored except while LMC terminals are open. If the High Limit switch • While a heating call exists (TT or DHW-TT closed) opens, control will switch off all elements and and an element cycles off to maintain set point enter a 60 second purge mode.
Page 20: Start-Up
Electric Installation, Operating & Service Manual Start-up 6. Boiler will start to produce heat. Listen for air WARNING passing through system as water temperature Use a qualified service agency for annual increases. Water pressure will rise somewhat as inspection of boiler and heating system. Wiring temperature increases-this is normal as long as errors can cause improper and dangerous pressure remains less than 25 PSIG.
Page 21: General Maintenance
Electric Installation, Operating & Service Manual General Maintenance Electric Boiler requires periodic maintenance. Annual maintenance allows for trouble-free operation. WARNING Electrical Shock Hazard. Turn OFF electrical power supply at main power switch before servicing unit. A qualified service agent should perform service.
Page 22: Troubleshooting
Table 12-2: Element Connections and purge unit as necessary. Element Resistance Ohms @ Boiler Model Heating Element Change (kW) Room Temp EB-16 14 to 14.5 WARNING EB-20 11 to 12 Burn and Electrical Shock Hazard. EB-24 9 to 10 Turn OFF electrical power supply at service panels before making electrical connections.
Page 23 Electric Installation, Operating & Service Manual Troubleshooting (continued) Fault Possible Cause Corrective Action Is circulator pump functional? Check power to pump and replace as necessary. Maintain a minimum of 3 GPM. Refer to Table 5-1. Increase flow rate by using larger pump or pipe Check temperature rise across boiler.
Page 24 Electric Installation, Operating & Service Manual Troubleshooting (continued) Fault Possible Cause Corrective Action N -Check control board jumper is in place and secure. Tighten FLO screws if needed. Y -System air locked - Purge system and add FLO Flow Switch Is flow switch installed? venting as needed.
Page 25: Service Parts
Electric Installation, Operating & Service Manual Service Parts Part Number Boiler Models Kit Contents Left side jacket panel Right side jacket panel Boiler logo EB-16 Jacket Front Cover 112025-01 EB-20 Door trim bezel EB-24 Breaker trim bezel Screw Instructions Breaker Trim Bezel...
Page 26 Electric Installation, Operating & Service Manual Service Parts (continued) Part Number Boiler Models Kit Contents 111999-01 EB-16 Element Heating Element 111999-02 EB-20 Gasket 111999-03 EB-24 Instructions Element Gasket Part Number Boiler Models Kit Contents Boiler Control EB-16 Boiler Control 112003-01...
Page 27 Electric Installation, Operating & Service Manual Service Parts (continued) Part Number Boiler Models Kit Contents Power Breaker EB-16 Power Breaker 112002-01 EB-20 Screws EB-24 Instructions Power Breaker Part Number Boiler Models Kit Contents EB-16 Flow Switch Flow Switch 112147-01 EB-20...
Page 28 Electric Installation, Operating & Service Manual Service Parts (continued) Part Number Boiler Models Kit Contents EB-16 Temperature Sensor Water Temperature 112019-01 EB-20 Sensor Instructions EB-24 Water temp. sensor Part Number Boiler Models Kit Contents EB-16 Screws Cooling Fan 112005-01 EB-20...
Page 29 Electric Installation, Operating & Service Manual Service Parts (continued) Part Number Boiler Models Kit Contents EB-16 Wire Harness Power Block Wire 112163-01 EB-20 Harness Instructions EB-24 Part Number Boiler Models Kit Contents EB-16 Wire Harness High Voltage Harness 112164-01 EB-20 Element 1 &...
Page 30: Warranty
This warranty applies to the original owner at the original place of installation. If warranties. a warranty claim is made during this time, Ambient will, at its option, repair or replace the heat exchanger. NOTE: Repair/replace option does not include labor charges incurred during 7.
Page 31 Electric Installation, Operating & Service Manual SERVICE RECORD DATE SERVICE PERFORMED 112182-03 - 8/23...
Page 32 Electric Installation, Operating & Service Manual U.S. Boiler Company, LLC P.O. Box 3020 Lancaster, PA 17604 1-888-432-8887 www.usboiler.net 112182-03 - 8/23...

This manual is also suitable for:

Eb-20 Eb-24