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6EPU‐DInstallationandOperationManual

059840‐00Rev.A Heat‐TimerCorp.

Table1:CycleLengthTable

*HeatAdjustmentSetting–See“DayAdjustment”onpage 30and“NightAdjustment”onpage 30.

Example

Todeterminethecyclelength,usetheexamplevaluesbelow:

• Outdoortemperature=30°F

• OutdoorCutoff=55°F

• HeatAdjustment=G

1. SubtracttheoutdoortemperaturefromtheOutdoorCutoff(55–30=25°F)

2. RefertoTable 1wheretheHeatAdjustmentrow“G”intersectswiththe25°Fcolumn.TheCycle‐ONtimeis

14minutes(fora60minutecycle).

NOTE:Fordifferentcyclelengths,refertothetablebelow:

OutdoorCutoffMinusOutdoorTemperature(AllTemperaturesin°F)

* 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 1

A 45 41 37 33 29 25 22 18 15 13 10 8 5 3 200000

B 57 51 46 41 37 33 28 25 21 18 15 12 9 7 531000

C C 595448433833292521181512 9 753100

D C C C 5549433834292521171411 964210

E C C C C 55 49 43 38 33 28 24 20 17 13 1086421

F CCCCC5549433732272319151297532

G C C C C C C 54 48 42 36 31 26 22 18 14 11 8 6 4 3

H CCCCCCC5347403529252016 13 10 7 5 4

I CCCCCCC5952453933272318 15 11 9 6 5

J CCCCCCCC58504337312521 16 13 10 7 6

K CCCCCCCCC564841342823 19 15 11 8 7

L CCCCCCCCCC5345383226 21 16 13 9 7

M CCCCCCCCCC5951433529 23 18 14 11 8

N CCCCCCCCCCC56473932 26 20 16 12 9

O CCCCCCCCCCCC534436 29 23 17 13 10

P CCCCCCCCCCCC594940 32 25 19 15 12

MinutesON(Basedon60MinuteCycleLength)

C=ContinuousOperation

CycleLength Divideby Cycle‐ON

20 3 5

30 2 7

90 2/3 21

heat-timer EPU-D User Manual

Questions and Answers: