18-EB32D1-1E-EN
19
5. Use the following factors if necessary.
6. Multiply the final figure by the heating value of the
gas obtained from the utility company and compare
to the nameplate rating. This must not exceed the
nameplate rating.
•
1 Cu. Ft. Dial Gas Flow CFH = Chart Flow
Reading / 2
•
1/2 Cu Ft. Dial Gas Flow CFH = Chart Flow
Reading / 4
•
5 Cu. Ft. Dial Gas Flow CFH = 10X Chart Flow
Reading / 4
7. Changes can be made by adjusting the manifold
pressure.
a. Attach a manifold pressure gauge.
b. Remove the slot screw on top of the gas
valve1st stage manifold pressure adjustment.
Remove slot screw on outlet side for 2nd stage
adjustment. See
c. Turn the adjustment nut in to increase the gas
flow rate, and out to decrease the gas flow rate
using a 3/32" hex wrench.
N
No
otte
e:: For manifold pressures and orifice sizes for gas
with other BTU ratings, contact the local gas
utility. Manifold pressure should be 3.5 inches
water column (+ 0.1). Input for natural gas must
n
no
ott exceed the value shown on the unit
nameplate.
2nd Stage (HI)
Manifold Pressure
Adjustment
Regulat or
Vent
1st Stage (L O)
Manifold Pressure
Adjustment
Coaxial Coil
Ter m inal ( M)
Common
Ter m inal ( C)
High fire Coil
Ter m inal ( H)
Gas V alv e
ON/OFF
Toggle Sw it ch
Inlet Pressure Boss
Outlet Pressure Boss
Figure 10.
Burner and Valve
Regulator Cover Screw
(Adj. screw beneath
this screw)
Manual
On-Off
Switch
Inlet
Pressure
Tap
Vent Post
Outlet
Pressure
Tap
REF . VIEW
(GAS VALVE)
Orifice
Burner
Manifold
Gas Valve
REF . VIEW
(3 Burners)
S
Stte
ep
p 4
4 —
— U
Un
niitt IIn
nsstta
alllla
attiio
on
n
