Delta 30, F-25, 35, 45, 40 Section XII Temperature Limits, Recommended Primary Thermostat Setting

Temperature Limits

SECTION XII - Temperature Limits

DANGER

Studies have indicated that dangerous bacteria can form in the potable water distribution system if certain minimum water temperatures are not maintained. For prevention of this, it is recommend- ed that the Secondary Thermostat be set as shown in Fig. 23 and maintained at 130ºF to 140ºF.

Setting Primary Thermostat Limit.

-The Primary (Space Heating) Thermostat located on the right side of the control panel acts as the high limit during the space heating function.

-Set the thermostat knob as shown in Fig. 22.

-Maximum limit setting is 180ºF

NOTICE

NOTICE

To adjust the thermostat settings:

-Turn thermostat knob clockwise

to increase water temperature

-Turn thermostat knob counter-

clockwise to decrease water temperature.

	Temperature Indicator
Temperature Down									Temperature Up
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			S	a	ce
		he tin
						g
			as	e	III	-		D
									o
		h							m
	-	P				P
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	I						a		s
								s
	I
	I							e	t
Back									i
	e							I		Knob
	a
	s							I
Plate		-				P	-
	h
		P	I		h
			II	esa

Fig. 22: Recommended Primary Thermostat Setting

To ensure proper function of the limits the Primary Thermostat must be set higher than the Secondary Thermostat.

Adjustment of Secondary Thermostat Limit

-The Secondary (Domestic) Thermostat located on left side of the control panel maintains the minimum domestic water storage temperature.

-Set the thermostat knob as shown in Fig. 23.

-Maximum limit setting is 140ºF.

Temperature Indicator

Temperature Down

Temperature Up

me

o

st

e

D

se

ic

g

P

c

n

-

ha

II

a

i

I

I

-

t

p

a

I

S e

e

I

P

h

s

h

a

a

Back

h

Knob

P

s

Plate

-

I

e

I

P-

II

II

esah

Fig. 23: Recommended Secondary Thermostat Setting

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