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Do it Once. Do it Right.

TACO, INC., 1160 Cranston Street, Cranston, RI 02920   Telephone: (401) 942-8000   FAX: (401) 942-2360.
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3.   Telephone: 905/564-9422.   FAX: 905/564-9436.
Manufactured by POTTER ELECTRIC SIGNAL CO., St. Louis, MO

Visit our web site at: http://www.taco-hvac.com

Printed in USA

Copyright 2004

TACO, Inc.

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Limited Warranty Statement

Taco, Inc. will repair or replace without charge (at the company’s option) any product or part which is proven
defective under normal use within one (1) year from the date of start-up or one (1) year and six (6) months from
date of shipment (whichever occurs first).

In order to obtain service under this warranty, it is the responsibility of the purchaser to promptly notify the local
Taco stocking distributor or Taco in writing and promptly deliver the subject product or part, delivery prepaid,
to the stocking distributor.  For assistance on warranty returns, the purchaser may either contact the local Taco
stocking distributor or Taco.  If the subject product or part contains no defect as covered in this warranty, the
purchaser will be billed for parts and labor charges in effect at time of factory examination and repair.

Any Taco product or part not installed or operated in conformity with Taco instructions or which has been subject
to misuse, misapplication, the addition of petroleum-based fluids or certain chemical additives to the systems,
or other abuse, will not be covered by this warranty.

If in doubt as to whether a particular substance is suitable for use with a Taco product or part, or for any
application restrictions, consult the applicable Taco instruction sheets or contact Taco at [401-942-8000].

Taco reserves the right to provide replacement products and parts which are substantially similar in design and
functionally equivalent to the defective product or part.  Taco reserves the right to make changes in details of
design, construction, or arrangement of materials of its products without notification.

TACO OFFERS THIS WARRANTY IN LIEU OF ALL OTHER EXPRESS WARRANTIES.  ANY WARRANTY
IMPLIED BY LAW INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS IS IN EFFECT ONLY
FOR THE DURATION OF THE EXPRESS WARRANTY SET FORTH IN THE FIRST PARAGRAPH ABOVE.

THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR STATUTORY, OR
ANY OTHER WARRANTY OBLIGATION ON THE PART OF TACO.

TACO WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAM-
AGES RESULTING FROM THE USE OF ITS PRODUCTS OR ANY INCIDENTAL COSTS OF REMOVING OR
REPLACING DEFECTIVE PRODUCTS.

This warranty gives the purchaser specific rights, and the purchaser may have other rights which vary from
state to state.  Some states do not allow limitations on how long an implied warranty lasts or on the exclusion
of incidental or consequential damages, so these limitations or exclusions may not apply to you.

Summary of Contents for EWF-120-1

Page 1: ...er Feeder 102 170 SUPERCEDES REVISIONDATEDAUGUST1 2004 5401148 REVB EFFECTIVE NOVEMBER 10 2004 r e w o P t u p n I l e d o M e g a t l o V r e w o P n o i t p m u s n o C 1 0 2 1 F W E C A V 0 2 1 A V 2 1 1 4 2 0 F W E C A V 4 2 A V 0 1 Patent Pending 24 VAC to be supplied by an EXTERNAL Class 2 power source OPERATION LWCO Mode When the mode switch of S1 See fig 9a is set to the ON position the EW...

Page 2: ...as dispensed more water over the past 30 days than the setting of the Excess Feed switch S4 Pressing and holding switch S5 will reset the Excess Feed Condition See Fig 2 for location of Excess Feed Reset Button Once this reset button is pressed and held for 2 seconds the EWF briefly turns off the Feed Status Indicator indicating reset has occurred Once the EWF completes the reset process the Feed ...

Page 3: ...rces Failure to do so could result in flooding and property damage can occur INSTALLATION Piping Plumb the EWF water feeder as shown in Figure 4 The EWF must be installed with a manual bypass To permit ease of removal for servicing or replace ment install unions and isolation valves Install the EWF with the flow direction arrow toward the boiler Fill the boiler by manually opening the bypass valve...

Page 4: ...a c o L T x 1 2 0 x L T x 0 2 4 x G N D P B U R N E R C IR C U IT H O T N E U T R A L H N T a c o E W F 1 2 0 E W F 0 2 4 L W 1 2 0 V A C 2 4 V A C C I R C U I T FIG 5 FIG 6 b 4 a N C COM N O H N Taco L Tx120x G ND P BUR NER CIRC UIT 12 0 VAC CIRC UIT HO T NEU TR AL H N Ta co EW F0 24 LW 24 V AC CIRC UIT HO T NEU TR AL N C COM N O H N Taco LTx024x G ND P BUR NER CIRC UIT 12 0 VAC CIRC UIT HO T NEU...

Page 5: ...eriod Low Water Period Delay Before Feeding Period DBF Hold Period After Water OK HAW Normal Water Condition Low Water Condition Feed Valve Closed Feed Valve Open ON OFF 1 2 3 4 5 6 7 8 1 Min 0 5 Min 4 Mins 2 Mins 8 Mins 6 Mins FF LWCO 10 Mins OFF ON DELAY BEFORE FEED DBF MODE ALL OFF 0 DELAY S1 ON OFF 1 2 3 4 5 10 Gals 8 Gals 15 Gals 12 Gals 6 Gals OFF ON EXCESS FEED SETTING ALL OFF DISABLED S4 O...

Page 6: ...For boilers with float style low water cutoffs lower the water level in the boiler until approximately is visible in the gauge glass Be sure to verify that any DBF delays occurred prior to the EWF starting a feed cycle 4 While using a stopwatch or a watch with a second hand press the manual feed button on the EWF and measure the time it takes for the boiler fill to a normal water level Use the boi...

Page 7: ... o c t e s d n a d e l b a n e s i t i e r u s e b e r u t a e f e h t n o d e l l a t s n i s i t a h t O C W L e h t r o f s n o i t c u r t s n i s r e r u t c a f u n a m r e l i o b y a l e D f o g n i t t e s r e p o r p m I F B D g n i d e e F e r o f e B e b y a m F B D r e g n o l a r e l i o b e h t o t n r u t e r o t w o l s s i e t a s n e d n o c f I s t r a t s g n i d e e f e r o f...

Page 8: ...addition of petroleum based fluids or certain chemical additives to the systems or other abuse will not be covered by this warranty If in doubt as to whether a particular substance is suitable for use with a Taco product or part or for any application restrictions consult the applicable Taco instruction sheets or contact Taco at 401 942 8000 Taco reserves the right to provide replacement products ...

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