Appliance details
2.9Measuring gas pressure
2.9.1Connecting Manometer
BShut off gas.
BRemove front cover and locate inlet gas pressure measuring point (see Fig. 14).
BLoosen screw inside test point fitting (do not remove) and connect manometer tube on test point.
2.9.2Static Pressure Test
BTurn gas supply back on.
BOperate all other gas appliances on same gas piping system at maximum output.
BRecord static gas pressure reading in table 3.
2.9.3Operating Pressure Test
BON/OFF switch in position OFF (0).
BPress and hold "Program" (M) button and turn ON/ OFF switch to ON position.
Static Gas Pressure Reading (see Chapter 2.9)
enter here: ___________________
Operating Gas Pressure Reading (see Chapter 2.9)
enter here: ___________________
Table 3
HIGH ALTITUDE OPERATION
Altitude | Natural | Liquid |
|
|
| Gas: | Propane: |
|
|
|
|
|
|
|
|
|
|
| For operation at |
0 - 4,000 ft | no | no |
| elevations |
(0 - 1,219 m) | modification | modification |
| above 2,000 ft |
|
|
|
| (610 m) the |
|
|
|
| equipment |
|
|
|
| ratings shall be |
| CO2 adjustment with flue |
| reduced at the | |
4,000 ft - 7,000 ft |
| rate of 4% for | ||
(1,219 m - 2,134 m) | gas analyzer required See |
| each 1,000 ft | |
chapter 9 for instructions. |
| |||
|
| (305 m) above | ||
|
|
|
| sea level |
Above 7,000 ft |
| Not approved |
| |
(above 2,134 m) |
|
| ||
|
|
|
| |
|
|
|
|
|
Table 4
Fig. 13
B As soon as '188' is displayed, release "Program" button and the display should read P2.
BPress 
, until P1 appears.
Note: While in this mode the appliance will run constantly at maximum power and allow maximum water flow. These program modes are for test purposes only and not intended for normal operation.
BTurn on high volume of hot water flow (at least 6 gpm) and heater will ignite.
BRecord operating gas pressure reading in table 3.
Gas pressures lower than 5" W.C. for Natural Gas or 11" W.C. for LPG will result in insufficient degree rise to the hot water being used, and must be corrected. See Gas Connections, chapter 2.8.
Fig. 14 Gas pressure measuring (left tapping)
12 | 6 720 607 440 |
