Btu Input; Gas Pressure - Superior Fireplaces DRC3000-B Series Installation And Operation Instruction Manual

Innovative Hearth Products
DRC3000-B Series Direct-Vent Gas Fireplaces

BTU INPUT

Table 1 - Input Rate (BTU/HR), Gas Valves
Table 2 - Thermal Efficiency (%)
* AFUE is a measurement of the US Department of Energy,
** Complies with CSA P.4.1-15 "Testing Method for Measuring Annual Fireplace Efficiency. P4 (EnerGuide) is a measurement of the Canadian
Office of Energy Efficiency. Efficiencies are based on Normal input operation.
NOTE: **CPI disabled per addendum Instructions 900949-00 (provided with this appliance).

GAS PRESSURE

Table 3 - Inlet Line Gas Pressures
Fuel
Natural Gas
Propane
Test gauge connections are provided on the front of the gas control valve (identified IN for the inlet and OUT for the
manifold side). The control valves have a 3/8" (10 mm) NPT thread inlet and outlet side of the valve, see Figure 1.
Figure 1 - Manifold and Inlet Gas Pressure Test Points (seen in Figure 1)
Inlet 3/8" NPT
Outlet Pressure
Tap
Inlet Pressure
Tap
The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during
any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).
Models
35" Models
40" Models
45" Models
Models AFUE *
Natural
35" Models 67.2%
40" Models 65.8%
45" Models 65.7%
Minimum
5" WC / (1.25 kPa)
11.0" WC / (2.74 kPa)
Natural Gas
High Rate Low Rate
20,000 15,000
24,000 18,000
28,000 22,000
Electronic
P4 **
Propane Natural Propane
66% 64.8% 64.9%
66.5% 63.9% 65.2%
66.2% 62.9% 64.8%
Table 4 - Manifold Outlet Gas Supply Pressure
Maximum
10.5" WC / (2.61 kPa)
13.0" WC / (3.23 kPa)
Propane tanks are at pressures that will
cause damage to valve components. Verify
that the tanks have step down regulators to
reduce the pressure to safe levels.
Outlet 3/8"
NPT
Pilot Outlet
7/16" UNS
General Information
901191-00C, 07/2023
Propane Gas
High Rate Low Rate
18,000 15,000
23,000 18,000
27,000 20,000
Fuel Pressure
Natural Gas 3.5" WC / (0.87 kPa)
Propane 10.0" WC / (2.49 kPa)
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