Greenheck DG / DGX with Pilot Ignition (463555 IOM) (Pre-2008) - Manual (Page 10)

10
Installation - Direct Gas Piping
Installation
Step 1 Determine the Supply Gas Requirements
The unit’s direct gas nameplate states the requirements for the gas being supplied to the unit.
IMPORTANT!
All gas piping must be installed in accordance with the latest edition of the National Fuel Gas Code
ANSI/Z223.1 and any local codes that may apply. In Canada, the equipment shall be installed in
accordance with the Installation Code for Gas Burning Appliances and Equipment (CGA B149) and
Provincial Regulations for the class. Authorities having jurisdiction should be consulted before
installations are made.
WARNING!
All components of this or any other gas fired heating unit must be leak tested prior to placing the unit
into operation. A soap and water solution should be used to perform this test. NEVER test for gas
leaks with an open flame.
WARNING!
If pressure testing in excess of 1/2 psig (3.5
kPa), the heater and manual shutoff valve must
be disconnected from the supply gas line.
WARNING!
If pressure testing at or below 1/2 psig (3.5 kPa),
the heater must be isolated from the supply gas
line by closing its manual shutoff valve.
IMPORTANT!
All piping should be clean and free of any foreign
matter. Foreign material entering the gas train
can damage the valves, regulators and burner.
“W.C.
“W.C.
“W.C.
F
PSI
“W.C.
“W.C.
MAX BTU/HR
BTU/H MAX
NORMAL MANIFOLD
PRESSURE
PRESSION D’ADMISSION
NORMALE
MIN GAS
PRESSURE
PRESSION DE GAZ
MIN BURNER
PRESSURE DROP
PERTE MIN DE PRESSION
DANS LE BRULEUR
TYPE OF GAS
NATURE DU GAZ
MIN BTU/HR
BTU/H MIN
MIN GAS PRESSURE
FOR MAX OUTPUT
PRESSION DE GAZ MIN
POUR PUISSANCE MAX
MAX BURNER
PRESSURE DROP
PERTE MAX DE PRESSION
DANS LE BRULEUR
MAX GAS
PRESSURE
PRESSION DE GAZ
MAX
DESIGN ∆T
∆T NORMALE
EQUIPPED FOR
CONCU POUR
SCFM “W.C.
EXTERNAL STATIC PRESSURE
PRESSION STATIQUE EXTERIEURE
AGAINST
CONTE
Maximum gas
pressure
Minimum gas
pressure for
maximum output
Type of Gas
IMPORTANT!
Do NOT connect the unit to gas types other than
what is specified and do NOT connect the unit
to gas pressures that are outside of the pressure
range shown on the label.
Direct Gas Nameplate