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Figure 5:  Wiring Diagram - 3 Zone System

White-Rodgers 2 Wire Zone Valves

Figure 6:  Wiring Diagram - 2 Zone System

Multiple Circulators

D. 

Indicator Lights

 

There is an indicator light for each heating element.  

If an indicator light is “on” it indicates its respective 

heating element is energized.  If the light is “off” it 

indicates:
1.  The heating element has not been energized.
2.  The heating element sequencer is malfunctioning.

E.

  Built-In Air Eliminator

 

An air eliminator has been built into the top of the 

electric boiler and a 3/4" tapping is provided with 

nipple and tee for connection of Relief Valve and a float 

type Air Vent.  See Figure 1.

Summary of Contents for Care-Free E4

Page 1: ...a r e b m u N l a i r e S d n a r e b m u N l e d o M r e l i o B e d i v o r p r e l i o b r e b m u N l e d o M r e l i o B r e b m u N l a i r e S r e l i o B e t a D n o i t a l l a t s n I 4 E r o t c a r t n o C g n i t a e H r e b m u N e n o h P s s e r d d A D N A G N I T A R E P O N O I T A L L A T S N I R O F S N O I T C U R T S N I E C I V R E S E E R F E R A C R E L I O B C I R T C E ...

Page 2: ...es Two Ventilation Openings one located at top and one at bottom each opening to have 25 sq in net free area Boiler Model DOE HEATING CAPACITY BTU HR AFUE KW Rating 240V Amps 240V No and Size of Elements Recommended Power Supply to Boiler Appx Wt Full Lb Water Contents Gal Water Flow Rate GPM Based on 20 F Temp Rise and Boiler Capacity At 240V 220V 208V Min Wire Size Max Fuse Size Amps 240V 220V 2...

Page 3: ...epending upon wall construction passing through the holes provided in the wall mounting channels Figure 1 shows bolt center dimensions It is recommended that 1 2 plywood be used as a base for mounting the boiler so that the structure is adequate to carry the weight imposed upon it see Figure 1 for weight of boiler when full of water Boiler should be level for proper operation of BUILT IN AIR SEPAR...

Page 4: ...tor will be furnished G A Prewired Low Voltage Control System is furnished with every CARE FREE boiler 1 All controls are furnished in a compartment at the front of the boiler for easy accessibility In addition to the Transformer used to power the system are the following Circulator Relay Heating Element Sequencers one per Heating Element Dual High Limit Control Circulator Operation Selector Switc...

Page 5: ...IONS 7 ROOM THERMOSTAT OPENS 8 HEATING ELEMENTS DE ENERGIZED When the thermostat is satisfied and opens its contacts the low voltage circuits to the Heating Element Relay and the Heating Element Sequencers are broken The Heating Element Relays drop out immediately and totally de energize the Heating Elements and pilot lights After a time delay of 45 seconds the main contacts of all the Sequencers ...

Page 6: ... Figure 4 Wiring Diagram Model E 4 Boilers ...

Page 7: ...ator light is on it indicates its respective heating element is energized If the light is off it indicates 1 The heating element has not been energized 2 The heating element sequencer is malfunctioning E Built In Air Eliminator An air eliminator has been built into the top of the electric boiler and a 3 4 tapping is provided with nipple and tee for connection of Relief Valve and a float type Air V...

Page 8: ...e cost of removing and reinstalling the alleged defective part or its replacement and all labor and material connected therewith and transportation to and from U S Boiler Company Inc b Components that are part of the heating system but were not furnished by U S Boiler Company Inc as part of the residential boiler c Improper burner adjustment control settings care or maintenance d This warranty can...

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