Gas Piping; Gas Pressure; Gas Connection; Measuring Gas Pressure - Electrolux EN19WI30LS Installation Manual

9.

Gas Piping

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Gas Pressure

Size the gas line according to total btuh demand
of the building and length from the meter or
Min. 4" WC
Min. 8" WC

Measuring Gas Pressure

using a silicon tube.
gauge.
Sample Gas Line
Electrolux Condensing Tankless Gas Water Heater
(199,900 Btuh)
Outlet E
10' (3m)
Section 4 Section 3 Section 2
5' (1.5m) 5' (1.5m)
Outlet D
10' (3m)
Gas Fireplace
(25,000 Btuh)
Natural Gas
Meter
**See next page for the pipe capacity charts.
20
Barbecue
(50,000 Btuh)
Outlet A
Clothes Dryer
(35,000 Btuh)
10' (3m)
Outlet C
5' (1.5m)
Section 1
5' (1.5m)
10' (3m)
5' (1.5m)
5' (1.5m)
Outlet B
Gas Range Stove
(65,000 Btuh)
1
Gas Meter
Select a gas meter capable of supplying the entire
btuh demand of all gas appliances in the building.

Gas Connection

they are rated for 199,900 btuh.
Instructions
1. Size each outlet branch starting from the furthest
using the Btuh required and the length from the
meter.
2. Size each section of the main line using the
length to the furthest outlet and the Btuh
required by everything after that section.
Sample Calculation
Outlet A: 45' (13.5m) (Use 50' (15m)), 50,000 Btuh requires 1/2"
Outlet B: 40' (12m), 65,000 Btuh requires 1/2"
Section 1: 45' (13.5m) (Use 50' (15m)), 115,000 Btuh requires 3/4"
Outlet C: 30' (9m), 35,000 Btuh requires 1/2"
Section 2: 45' (13.5m) (Use 50' (15m)), 150,000 Btuh requires 3/4"
Outlet D: 25' (7.5m) (Use 30' (9m)), 25,000 Btuh requires 1/2"
Section 3: 45' (13.5m) (Use 50' (15m)), 175,000 Btuh requires 1"
Outlet E: 25' (7.5m) (Use 30' (9m)), 199,900 Btuh requires 3/4"
Section 4: 45' (13.5m) (Use 50' (15m)), 374,900 Btuh requires 1-1/4"
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