Raypak 2600401 operating instructions Gas Supply Connections, Model No Nat Pro

ate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

(d)Place in operation the appliance being inspected. Follow the lighting instructions. Adjust tankstat so appliance will operate continuously.

(e)Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a ciga- rette, cigar or pipe to visually check spillage.

(f)After it has been determined that each appliance remaining connected to the common venting sys- tem properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous conditions of use.

(g)Any improper operation of the common venting system should be corrected so the installation conforms with the latest edition of the National Fuel Gas Code, ANSI Z223.1. When re-sizing any portion of the common venting system, the com- mon venting system should be re-sized to approach the minimum size as determined using the appropriate tables in Chapter 10 and in Appendix G of the National Fuel Gas Code, ANSI Z223.1 and CAN/CSA-B149.

Gas Supply Connections

The inlet gas connection to the heater gas valve is 3/4" for models 260/261 and 330/331; and 1" for mod- els 400/401. Provide an adequate gas supply line according to Table G below.

Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve locat- ed outside the heater jacket. All gas piping should be tested after installation in accordance with local codes.

SUPPLIED BY

INSTALLER

Fig. 12: Sediment Trap

CAUTION: The heater and its manual shut off valve must be disconnected from the gas supply during any pressure testing of that system at test pressures in excess of 1/2 psi (3.45 kPa). Dissipate test pressure in the gas supply line before reconnecting the heater and its manual shut off valve to gas supply line. FAILURE TO FOLLOW THIS PROCEDURE MAY DAMAGE THE GAS VALVE. OVER PRESSURED GAS VALVES ARE NOT COVERED BY WARRANTY. The heater and its gas connections shall be leak tested before placing the appliance in operation. Use soapy water for leak test DO NOT use open flame.

NOTE: Do not use teflon tape on gas line pipe thread. A flexible sealant suitable for use with Natural and Propane gases is recommended.

Model No.	3/4 in.		1 in.		1-1/4 in.		1-1/2 in.
	Nat	Pro	Nat	Pro	Nat	Pro	Nat	Pro
0260/0261	20	40	60	140	250	560
0330/0331	15	25	35	85	150	380	360
0400/0401		15	25	60	100	260	250

Natural gas, 1000 BTUH/ft .60 specific gravity @ 0.5 in. WC pressure drop.

Propane gas, 2500 BTUH/ft 1.53 specific gravity @ 0.6 in. WC pressure drop.

Table G: Maximum Equivalent Pipe Length (ft)

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