Ignition Controls Flashcards
A Smart Gas Valve uses what kind of igniter to light pilot light?
A
Hot Surface Igniter (H.S.I.)
A Gas valve must match control module on
A. I.P.I
B. D.S.I
C. H.S.I.
D. All of the above
D. All of the above
Smart Gas valve combines both the I.P.I. module
into the gas valve……….
(I.P.I.) Intermittent Pilot Ignition
Uses a/an _________ to light a pilot each time there is a call for heat.
electronic igniter
Most common Intermittent Pilot Ignition(I.P.I) for boilers is
intermittent spark ignition
What other type of (I.P.I.) Intermittent Pilot Ignition can be used for warm air furnaces?
Hot surface ignition (H.S.I.) can also be used for warm air furnaces.
(I.P.I.) Intermittent Pilot Ignition Spark Generator produces a spark output of
10k-15k volts
(the book says 7.5k-10k volts)
(I.P.I.) Intermittent Pilot Ignition Flame may be detected through
the spark rod or through a separate flame sensing rod.
(I.P.I.) Intermittent Pilot Ignition Replaces standing pilot ignition to save energy by
3-5%
(I.P.I.) Intermittent Pilot Ignition (can be/cannot be) retro-fitted? Why or why not?
Can be.
Because the pilot location has already been located by the manufacturer.
(I.P.I.) Intermittent Pilot Ignition Retro-fitting is usually not recommended because
cost and labor outweigh energy savings.
(I.P.I.) Intermittent Pilot Ignition Spark Module will ______ if the pilot doesn’t light in pretimed amount.
lock-out
(I.P.I.) Intermittent Pilot Ignition:
If flame is not detected, control may go into ________, depending on the module or manufacturer.
lock-out
(I.P.I.) Intermittent Pilot Ignition:
To unlock control, what needs to happen?
turn off for several seconds and turn back on.
(I.P.I.) Intermittent Pilot Ignition Module Terminals:
MV-(Main Gas Valve)
MV/PV-(Main Gas Valve and Pilot Gas Valve)
PV-(Pilot Gas Valve)
24 V (1)-
24 V (2)-
MV-(Main Gas Valve) 24 volts ac hot to Main Gas Valve on module
MV/PV-(Main Gas Valve and Pilot Gas Valve) 24 volts ac to common on module
PV-(Pilot Gas Valve) 24 volts ac hot to Pilot Valve on module
24 V (1)- 24 volts ac hot from Transformer ® Terminal
24 V (2)- 24 volts ac neutral from Transformer © Terminal
(D.S.I.) Direct Spark Ignition Lights the main burners without ________
using a pilot assembly
(D.S.I.) Direct Spark Ignition Spark Generator produces a spark output of
30k volts
(D.S.I.) Direct Spark Ignition Ignition cable length should not exceed
36”
(D.S.I.) Direct Spark Ignition (Can/Cannot) be field retro-fitted safely, because manufacturer designs the best safest location for the igniter.
Cannot be field retro-fitted safely, because manufacturer designs the best safest location for the igniter.
(D.S.I.) Direct Spark Ignition Early models had problems with
delayed ignition.
Modern equipment is starting to use ______ (kind of ignition) again, using it with slow opening gas valves.
direct spark ignition (D.S.I.)
(D.S.I.) Direct Spark Ignition If flame is not detected, control may go into______ in a pre-timed amount.
lock-out
(D.S.I.) Direct Spark Ignition:
To unlock control, what needs to happen?
turn off for several seconds and turn back on.
(D.S.I.) Direct Spark Ignition Has varying
lock-out times, and trail for ignition
