73
SERVICING
For propane conversion above 2,000 feet, high altitude kit
HAKT036150 is required in addition to propane conversion
kit LPHE-036072.
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE
45/55 47/55 47/56
-
47/56 48/57 48/58 49/58
CANADA BURNER ORIFICE
45/55
-
-
48/57
-
-
-
-
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE
44/55 44/55 45/56
-
45/56 46/57 47/58 47/58
CANADA BURNER ORIFICE
44/55
-
-
47/57
-
-
-
-
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE
43/55 43/55 44/56
-
44/56 44/56 45/57 45/57
CANADA BURNER ORIFICE
43/55
-
-
46/57
-
-
-
-
ELEVATION ABOVE SEA-LEVEL (FEET)
20,000 BTUH NAT/20,000 BTUH/L.P.
INPUT/BURNER
INPUT/BURNER
HIGH ALTITUDE
KIT
HAKT036150
HIGH ALTITUDE
KIT
22,500 BTUH NAT/20,000 BTUH/L.P.
ELEVATION ABOVE SEA-LEVEL (FEET)
HAKT036150
HAKT036150
INPUT/BURNER
25,000 BTUH NAT/20,000 BTUH/L.P.
ELEVATION ABOVE SEA-LEVEL (FEET)
HIGH ALTITUDE
KIT
S-313 Testing Ignition Control Module
NOTE: Failure to earth ground the unit, reversing the
neutral and hot wire connection to the line (polarity), or a
high resistance connection in the ground or neutral lines
may cause the control to lockout due to failure to detect
flame.
The ground wire must run from the unit all the way back
to the electrical panel. Proper grounding can be confirmed
by disconnecting the electrical power and measuring
resistance between the neutral (white) connection and the
burner closest to the flame sensor. Resistance should be
less than 10 ohms.
DSI Direct Spark Ignition Systems
Normal Sequence Of Operation (Dsi Direct Spark
Ignition System)
1. Thermostat calls for heat by energizing “W”. The
control checks the pressure switch for open condition.
If the pressure switch is closed the control will flash
code “3” and wait for the pressure switch to open.
2. The induced draft motor is energized and the control
flashes code “2” and waits for the pressure switch
to close. Once the pressure switch is closed, the LED
stops flashing and the control begins timing the 15
second pre-purge.
3
2
1
6
5
4
9
8
7
12
11
10
L2
L2
L2
L2
COOL
HEAT
UNUSED
L1
L1
D1
FS
Diag
no
st
ic L
ED
Blower Off Delay Settings
Transformer
speed up
DSI Control Board
3. The control energizes the spark igniter and gas valve
for 7 seconds. If flame is established, the control goes
into a 30 second heat on delay.
4. The indoor blower is energized at the heat speed
after a 30 second on delay.
5. The control monitors the safety circuit inputs, flame,
and thermostat during operation.
6. When the thermostat is satisfied, the gas valve is
de-energized and the induced draft blower remains
on for a 29 second post purge. The indoor blower
remains on for the selected heat blower off delay (90,
120, or 150 seconds). Indoor blower off timing begins
when thermostat call for heat ends.
Testing Direct Spark Ignition (DSI) systems
Thermostat calling for heat (15 second prepurge time and
7 second trial for ignition).
1. Check for 230 VAC from L1 terminal of control
module to L2. No voltage - check wire connections,
continuity, etc.
2. Check for 24 VAC at “R” to “C” thermostat terminals.
A. No voltage - check 3 amp automotive type fuse
on control board. A blown fuse would indicate a
short in the 24 VAC circuit (thermostat or limit
circuit).
B. Voltage Present - check limit, auxiliary limit and
rollout (S-300, S-301 and S-302). If limit, auxiliary
limit and rollout are closed, then check for 24
VAC at the gas valve terminals.
No 24 VAC at gas valve - replace Control board.
Содержание DRG0361DL00001S
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