24
MPC Platinum Installation and Operation Manual
HT# 059085-00 F
Heat Adjustment Setting
CYCLE LENGTH TABLE
Outdoor Cutoff Minus Outdoor Temperature
95°F 90°F 85°F 80°F 75°F 70°F 65°F 60°F 55°F 50°F 45°F 40°F 35°F 30°F 25°F 20°F 15°F 10°F 5°F 1°F
A 45 41 37 33 29 25 22 18 15 13 10 8 5 3 2 0 0 0 0 0
B 57 51 46 41 37 33 28 25 21 18 15 12 9 7 5 3 1 0 0 0
C C 59 54 48 43 38 33 29 25 21 18 15 12 9 7 5 3 1 0 0
D C C C 55 49 43 38 34 29 25 21 17 14 11 9 6 4 2 1 0
E C C C C 55 49 43 38 33 28 24 20 17 13 10 8 6 4 2 1
F C C C C C 55 49 43 37 32 27 23 19 15 12 9 7 5 3 2
G C C C C C C 54 48 42 36 31 26 22 18 14 11 8 6 4 3
H C C C C C C C 53 47 40 35 29 25 20 16 13 10 7 5 4
I C C C C C C C 59 52 45 39 33 27 23 18 15 11 9 6 5
J C C C C C C C C 58 50 43 37 31 25 21 16 13 10 7 6
K C C C C C C C C C 56 48 41 34 28 23 19 15 11 8 7
L C C C C C C C C C C 53 45 38 32 26 21 16 13 9 7
M C C C C C C C C C C 59 51 43 35 29 23 18 14 11 8
N C C C C C C C C C C C 56 47 39 32 26 20 16 12 9
O C C C C C C C C C C C C 53 44 36 29 23 17 13 10
P C C C C C C C C C C C C 59 49 40 32 25 19 15 12
Minutes ON (based on 60 minute cycle length)
- "C" minutes denotes continuous operation
The duration of the Cycle-ON (when the heat source is activated)
depends on the following four factors:
1. Outside temperature
2. Outdoor Cutoff temperature
3. Heat Adjustment settings
4. Cycle length
• When the outside temperature is above the Outdoor Cutoff,
the MPC Platinum will not call for heat. Below the Cutoffs,
the length of Cycle-ON is adjusted by the Heat Adjustment
Settings. '"A" gives the shortest duration of heat while "P"
gives the longest duration of heat as shown by the chart.
Heat Adjustment: G
Outside Temp.: 30°F
Outdoor Cutoff: 55°F
Outdoor Cutoff 55°F
- Outdoor Temp. 30°F
_____________________
Select Highlighted
Vertical Column 25°F
Cycle
Length
Cycle-On Divide by
20 4.7 3
30 7 2
60 14 1
90 21 2/3
DAY AND NIGHT OUTDOOR CUTOFF
On, 20°F/-7°C to 100°F/38°C, Off Default: 55°F (13°C) Day / 40°F (4°C) Night
SELECT Settings/<System Settings>/Day Outdoor Cutoff or Night Outdoor Cutoff
• The Day and Night Outdoor Cutoffs determine when the MPC Platinum calls for heat.
• When the outside temperature rises above the Cutoff by 2F°, the MPC Platinum stops
providing steam to heat the building.
• When the temperature falls below the Cutoff, the MPC Platinum begins running cycles and
providing steam to the heating system.
• The Cutoff temperature also affects the amount of heat provided to the building. See
"Understanding the Cycle Concept" on page 4.
----- DAY CUTOFF -----
55
F
[
]
---- NIGHT CUTOFF ---
40
F
[
]
SYSTEM SET POINT
(Available in Burner or Valve Operation Mode Only)
Adjustable from 70°F/21°C to 250°F/121°C Default: 150°F/66°C
SELECT Settings/<System Settings>/<More Settings>/Sys Setpoint
• The System Set Point is the temperature at which the heat has gotten all the way through the
building's radiation system. Above this temperature, all the radiators in the building are hot.
• To nd the appropriate System Set Point for your building, you may need two individuals to
use the following procedure:
1. Turn the heating system off and wait until the radiators are cool.
-- SYSTEM SETPOINT --
140
F
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]
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