Model No.

Manifold Gas Pressure

(High Fire Values)

 

Natural Gas

Propane Gas

1005

-1.1

-0.6

1505

-1.6

0.3

2005

-1.8

-2.0

Table W: XTherm Manifold Pressure Settings

CAUTION: Special manifold and air settings may be required.

Finishing

1.Record all data on the “Start-up Checklist” located at the back of this manual.

2.Disconnect the manometers and reconnect the cap on the fan pressure switch tee and reinsert the sealing screws into the bleedle valves.

3.Start-up is complete and the heater should be operating properly.

Safety Inspection

1.Check all thermostats and high limit settings.

2.During the following safety checks leave manome- ters hooked up, check and record.

3.If other gas-fired appliances in the room are on the same gas main, check all pressures on the XTherm with all other equipment running.

4.Check thermostats for ON-OFF operation.

5.Check high limits for ON-OFF operation.

6.While in operation, check flow switch operation.

7.Check the low gas pressure switch (if provided). (For proper adjustment, use the attached manometers, if available, to set pressure. The scales on the switch are approximate only.) Low gas pressure switch (if provided) must be set at 3.0 in. WC for natural gas and propane gas.

8.Make sure that the high gas pressure switch (op- tional) is set to 3.0 in. WC for both natural gas and propane gas.

Follow-Up

Safety checks must be recorded as performed. Turn heater on. After main burner ignition:

1.Check manometer for proper readings.

2.Cycle heater several times and re-check readings.

3.Remove all manometers and replace caps and screws.

4.Check for gas leaks one more time.

Leak Test Procedure: Dual-Seat Gas Valve

Proper leak testing requires three pressure test points in the gas train.

Remove the access panel on the rear of the heater to access the gas valve for this test. Test point A is a blee- dle valve located upstream of the combination gas valve on the supply manifold.

NOTE: May have to remove HGPS (if applicable) to conduct this test.

Test point B is a bleedle valve located between the two automatic gas valve seats.

Test point C is a bleedle valve located downstream of both automatic gas valve seats and upstream of the manual valve. Refer to Fig. 54.

These tests are to be conducted with the electrical power to the heater turned OFF.

1.Manually close the downstream leak test valve.

2.Open the bleedle valve at test point A and connect a manometer to it. Verify that there is gas pressure and that it is within the proper range (NOTE: must not exceed 14.0 in. WC).

3.Open test point B and connect a rubber tube to it. Connect the other end of the tube to a manometer and look for a build-up of pressure. Increasing pressure indicates a leaking gas valve which must be replaced.

4.Next, close the upstream manual gas valve (field supplied) and remove the manometers from the bleedle valves in test point A and test point B. Connect a rubber tube from the test point A blee-

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Raypak 1005 operating instructions Finishing, Safety Inspection, Follow-Up, Leak Test Procedure Dual-Seat Gas Valve

1005 specifications

Raypak is a prominent name in the heating industry, known for its innovative and efficient heating solutions for residential and commercial applications. The models 2005, 1005, and 1505 are notable offerings from Raypak, each designed to provide reliable performance, energy efficiency, and user-friendly operation.

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All three models—the 2005, 1005, and 1505—benefit from Raypak's commitment to energy efficiency. They are designed to meet stringent environmental standards while minimizing operational costs for the user. Additionally, their reliable safety features, such as pressure switches and safety valves, ensure safe operation across various conditions.

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