Honeywell Honeywell Water Pump S8660 User's Manual

Honeywell Water Pumps User's Manual - Honeywell Water Pump S8660.
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TABLE 1—INTERMITTENT PILOT IGNITION MODULES.

IGNITER-

100

SENSOR

TYPE

PREPURGE

PERCENT

LOCKOUT

IGNITION

MODEL

TYPE

OF GAS

TIMING

SHUTOFF

TIMING

SEQUENCE

a

S8600A,

Separate

Natural

None

No

No

Spark on until pilot

S8610A

lightoff or manual

S8600F,

Combination

shutoff; pilot valve

S8610F

open until manual
shutdown.

S8600B,

Separate

Natural

None

Yes, at

15 or 90

Spark on until

S8610B

or LP

lockout

sec. max.,

lightoff or lockout;

S8600H,

Combination

as ordered

pilot valve closes

S8610H

on lockout.

S8600M

Combination

Natural

None

Yes, at 90

No,

Spark and pilot gas

or LP

sec. max.

continuous

on until shutoff.

retry

After 5 min. min.
(6 min. nom.) delay,
ignition starts again.
Ignition, wait, retry
repeats until pilot
lights or system is
shut down manually.

S8660D,

Combination

Natural

45 sec.

Yes, at

15 or 90

Ignition trial follows

S8670D

or LP

lockout

sec. max.,

prepurge; spark on

as ordered

until lightoff or
lockout; pilot valve

closes on lockout.

a If established flame is lost, all models restart ignition trial.

J.A.

Form Number 69-0463

11-89

©Honeywell Inc. 1989.

INTERMITTENT PILOT MODULES

S8600, S8610, S8660, S8670

APPLICATION

These ignition modules provide ignition sequence, flame

monitoring and safety shutoff for intermittent pilot central
furnaces and heating appliances. S8600 and S8660 mod-
els provide up to 1.0 A pilot and 1.0 A main valve current
rating.  S8610 and S8670 provide up to 1.0 A pilot and 2.0
A main valve current rating.  Minimum ambient temperature

rating is -40

° F [-40° C]. Maximum ambient rating is +175°

F [+79

° C] for S8600, S8660 and for S8610, S8670 used

with 1.0 A or less main valve. Maximum ambient rating for
S8610, S8670 used with 1.0 to 2.0 A main valve is +165

° F

[+74

° C]. See Table I for a summary of other differences

between models.

PLANNING THE INSTALLATION

Intermittent pilot systems are used on a wide variety of

central heating equipment and on heating appliances such
as commercial cookers, agricultural equipment, industrial
heating equipment and pool heaters. Some of these appli-
cations may make heavy demands on the controls, either
because of frequent cycling, or because of moisture, corro-
sive chemicals, dust or excessive heat in the environment.
In these situations, special steps may be required to pre-
vent nuisance shutdowns and premature control failure.
These applications require Honeywell Residential Division
Engineering review; contact your Honeywell Sales Repre-
sentative for assistance.

FREQUENT CYCLING

These controls are designed for use on space heating

appliances that typically cycle 3 to 4 times an hour during
the heating season and not at all during the cooling season.
In an application with significantly greater cycling rates and
closer to year-round use, we recommend monthly checkout
because the controls may wear out more quickly.

WATER OR STEAM CLEANING

Once a module or gas control has been wet, it may

operate unreliably and must be replaced. If the appliance is

likely to be cleaned with water or steam, the controls and
associated wiring should be covered so water or steam flow
cannot reach them. The controls should be high enough
above the bottom of the cabinet so they will not be subject
to flooding or splashing during normal cleaning procedures.
If necessary, shield the controls to protect them from
splashing water. A NEMA 4 enclosure is recommended for
the ignition module; see the Electronic Ignition Service
Manual, form 70-6604.

HIGH HUMIDITY OR DRIPPING WATER

Over time, dripping water or high ambient humidity can

create unwanted electrical paths on the module circuit
board, causing the module to fail. 

Never install an appliance

where water can drip on the controls.

In addition, high ambient humidity can cause the gas

control to corrode, and finally to fail.

Where the appliance may be installed in a humid atmos-

phere, make sure air circulation around the module and gas
control is adequate to prevent condensation. It’s also im-
portant to regularly check out the system. A NEMA 4
enclosure may be needed; see the Electronic Ignition
Service Manual, form 70-6604.

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