0) instructions for pressure test gauge connection – Space Ray ETS Series User Manual
Page 33
Form 43343300
-32-
May 2013
15.0)
INSTRUCTIONS FOR PRESSURE TEST GAUGE CONNECTION
SUPPLY PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
1.
The installer will provide a 1/8” N.P.T. tapped plug, accessible for test gauge connection immediately
upstream of the gas supply connection to the heater.
MANIFOLD PRESSURE
MANIFOLD PRESSURE
MANIFOLD PRESSURE
MANIFOLD PRESSURE –
–
–
– COMBINATION GAS VALVE IS FACTORY SET
COMBINATION GAS VALVE IS FACTORY SET
COMBINATION GAS VALVE IS FACTORY SET
COMBINATION GAS VALVE IS FACTORY SET
1.
Turn the gas valve to the “OFF” position. Remove the 1/8” plug from the combination gas valve at the Outlet
Outlet
Outlet
Outlet
Pressure T
Pressure T
Pressure T
Pressure Tap
ap
ap
ap as shown and connect a 1/8” nipple to the tapped hole. Connect the test gauge to the nipple.
Turn on the gas supply.
Pressure Regulator Adjustment
(under cap screw)
1/8 NPT
Inlet Pressure
Tap with 3/16 Hex
Allen Wrench Plug
1/8NPT
Outlet Pressure
Tap with 3/16 Hex
Allen Wrench Plug
Gas Control
Knob
Wiring
Terminals (2)
Ground
Terminals (2)
OUTLET
INLET
CAUTION
Never jumper these terminals. This
shorts out valve coil and may burn
out heat anticipator in thermostat.
STEP-OPENING
GAS CONTROL VALVE
ON
OFF
MV
MV
2.
With the main burner operating, check the burner manifold pressure using a water column manometer.
Gauges that measure pressure in pounds per square inch are not accurate enough to measure or set the
manifold pressure. All measurements MUST BE
MUST BE
MUST BE
MUST BE made when this heater and all other gas burning equipment
that is connected to the gas supply system are operating at maximum capacity.
3.
The combinatio
The combinatio
The combinatio
The combination gas valve is factory set and should not require adjustment.
n gas valve is factory set and should not require adjustment.
n gas valve is factory set and should not require adjustment.
n gas valve is factory set and should not require adjustment. If full rate adjustment is
required, remove the cover screw. Using a small screwdriver, turn the adjustment screw clockwise
to
increase or counterclockwise to decrease the gas pressure to the burner. Replace the cover screw. NOTE:
NOTE:
NOTE:
NOTE:
The step opening pressure of this gas valve is not adjustable.
The step opening pressure of this gas valve is not adjustable.
The step opening pressure of this gas valve is not adjustable.
The step opening pressure of this gas valve is not adjustable.
4.
Check the burner at step pressure, observing burner ignition and flame characteristics. The burner should
ignite properly and without flashback to the orifice, and should remain lit.
GAS PRESSURE TABLE
GAS PRESSURE TABLE
GAS PRESSURE TABLE
GAS PRESSURE TABLE
GAS TYPE
GAS TYPE
GAS TYPE
GAS TYPE
MANIFOLD PRESSURE
MANIFOLD PRESSURE
MANIFOLD PRESSURE
MANIFOLD PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
SUPPLY PRESSURE
Minimum*
Minimum*
Minimum*
Minimum*
Maximum
Maximum
Maximum
Maximum
Natural Gas
3.5” W.C.
5” W.C.
1
14” W.C.
Propane Gas
10.0” W.C.
11” W.C.
2
14” W.C.
* Minimum permissible gas supply pressure for purpose of input adjustment.
1
7” W.C. for ETS/U 150-250
2
12” W.C. for ETS/U 180-250