Chromalox PQ404-6 specifications Installation cont’d

INSTALLATION (cont’d.)

	Pressure	Manual Reset
	Gauge	Pressure Conrol
High Pressure
Control
Step Sequencer				Electric
(Optional)				Control
Heating				Box
			A
Elements
Return					30”
Inlet (J)

Blow Down	Wall
Drain Valve	C
(L)	B

E	G
H
	I
Safety	Steam
Valve (G) Outlet (F)

Water	Blow Down		60”
Level	Drain Valve (L)
Control
Check Valve				Wall
		D
Water Inlet (K)

Figure 1 Figure 2 Figure 3

*CHS- thru 1620 have 2 control boxes (See Figure 2). Add 13” to “B” dimension.

Model Number

A

B

C

D

E

F*

G

H

I

J

K

L

CHS-150 thru CHS-300

57”

45”

32”

40”

68”

3” NPT

1”

25”

31”

2” NPT

1” NPT

1” NPT

CHS-360 thru CHS-420

57”

45”

32”

40”

68”

4”

1”

25”

31”

2” NPT

1” NPT

1” NPT

CHS-495 thru CHS-630

57”

45”

32”

47”

86”

4”

1”

34”

40”

2” NPT

1” NPT

1” NPT

CHS-720 thru CHS-810

76”

58”

45”

47”

94”

6”

1-1/2”

38”

44”

2” NPT

1” NPT

1” NPT

CHS-945 thru CHS-1080

76”

68”

45”

47”

94”

6”

1-1/2”

38”

44”

2” NPT

1” NPT

1” NPT

CHS-1215 thru CHS-1620

86”

76”

56”

50”

98”

6”

1-1/2”

40”

46”

2” NPT

1-1/2” NPT

1” NPT

*4” and 6” are flanged.

Typical Plumbing Installation of a Steam Boiler with Condensate Return System

Insulated Steam Lines

(Pitch Down 5˚)

Heat

Globe

Gate

Gate

Safety

Water/Steam

Exchanger

Valve

Valve

Separator

Valve

Valve

(Typical Load)

Vacuum

Check

Trap

Trap

Breaker

Valve

Check Valve

Check Valve

Return

Drain

Pitch Down 5˚

Vent

Cold Water

Boiler

Make-Up

Auxiliary

InletCondensate

Return

Cold Water

(for Initial Fill)

DrainStrainer

Centrifugal

Turbine Pump

2