Eating Peration With; Ctk01 T - Amana xMVM97 series Installation Instructions Manual

• After 10 total minutes, the furnace control board
increases the firing rate to 78% at a rate of 1% per
second.
• After 20 total minutes, the furnace control board
increases to 100% at a rate of 1% per second for the
remainder of the call for heat.
• The circulator fan is adjusted to the appropriate
CFM, corresponding to the current firing rate.
IGNITION
(80%)
70%
60%
50%
2 MINS.
MIN.
Operation with Conventional 2-Stage Thermostat
(DIP switch selects 2-stage heat)
Call for 1st-Stage Heat - Thermostat contacts close R to W1.
After a successful Light Off Sequence and expiration of the
Ignition Stabilization Period:
• The furnace control board adjusts to the low firing
rate.
• After 2 minutes, the furnace control board increases
the firing rate to 50% for the next 8 minutes.
• Thereafter, the furnace control board will increase
the firing rate 10%, at a rate of 1% per second, every
10 minutes for the remainder of the call for heat
(See above figure).
• The circulator fan is adjusted to the appropriate
CFM, corresponding to the current firing rate.
90%
IGNITION
(80%)
70%
60%
50%
2 MINS.
MIN.
Operation with Conventional 2-Stage Thermostat
(DIP switch selects 2-stage heat)
10 MINS.
8 MINS.
Figure 45
10 MINS.
8 MINS.
Figure 46
Call for 2nd-Stage Heat - Thermostat contacts close R to W1
and W2.
After a successful Light Off Sequence and expiration of the
Ignition Stabilization Period:
• The furnace control board adjusts to the low firing
rate of 35%.
• After 2 minutes, the furnace control board increases
the firing rate to 80%.
• Thereafter, the IFC will increase the firing rate by
10%, at a rate of 1% per second, every 10 minutes
for the remainder of the call for heat.
• The circulator fan is adjusted to the appropriate
CFM, corresponding to the current firing rate.
100%
IGNITION
(80%)
78%
50%
2 MINS.
MIN.
Call for 2nd-Stage Heat with 1st-Stage call for heat call in
progress, with conventional 2-Stage Thermostat.
• The furnace control board increases the firing rate
to 100% at a rate of 1% per second for the remainder
of the W2 call.
• The circulator is adjusted to the appropriate CFM,
corresponding to the current firing rate.
Call for 2nd-Stage Heat satisfied; Call for 1st-Stage Heat
remains.
• The furnace control board remains at the current
firing rate until the 1st-Stage call for heat is
satisfied.
H O
EATING PERATION WITH
)
NICATING
• When the Thermostat Heat Setup DIP switch is set
to 2-Stage heat, the furnace control board operation
will be compatible with a CTK01 communicating
thermostat.
• When a call for heat is sent, the furnace will go
through the Light Off Sequence, at which time the
Heat Current Demand Status will still show 0%. After
the successful Light Off Sequence and expiration of
the Ignition Stabilization Period:
• The furnace control board adjusts to the low firing
rate.
• After 2 minutes, the furnace control board accepts
the specific heat requested demand.
UNIT CALL FOR HEAT ENDS
CALL FOR
2ND STAGE HEAT
Figure 47

CTK01 T

(C
HERMOSTAT
-
OMMU
35