At the time of removal of an existing heater, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remain- ing connected to the common venting system are not in operation.
(a)Seal any unused openings in the common venting system.
(b)Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
(c)Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the com- mon venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate 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 cigarette, 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 Z 223.1. When resizing any portion of the common venting system, the com- mon venting system should be resized 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 Z 223.1 and CAN/CGA - B149.1
GAS SUPPLY CONNECTIONS
The inlet gas connection of the heater gas valve is 1/2". Provide an adequate gas piping supply line no smaller than 1/2", according to the chart below:
Maximum Equivalent Pipe Length (Feet)
|
| 1/2" Pipe | 3/4" Pipe | 1" Pipe | |||||
MODEL | NAT | PROP | NAT | PROP | NAT | PROP | NAT | PROP | |
0090 |
| 30 | 80 | 125 | 300 | 400 | - | - | - |
0135 |
| 15 | 40 | 60 | 150 | 200 | 500 | - |
|
0195 |
| - | 20 | 35 | 70 | 100 | 250 | 400 | - |
Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shutoff valve located outside the jacket. All gas piping should be tested after installation in accordance with local codes.
ManualUnion
Valve
Sediment Trap | Gas Valve |
| Fig. # 8192.0 |
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 psig (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 COV- ERED BY WARRANTY. The heater and its gas connec- tions 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.
Aflexible sealant suitable for use with Natural and Propane gases is recommended.
NOTE: These boilers are also certified to operate on Propane gas, when equipped with the combination gas valve and orifices (pilot and main burners) sized for Propane gas.
GASPRESSURE-SPECIFICATIONS
| Inches | W.C. | Regulator |
| Min. | Max. | Setting |
Natural | 4.5 | 10.5 | 3.5 |
Propane | 12.0 | 13.0 | 11.0 |
Note: Do not exceed maximum inlet gas pressure. The minimum value shown is for input adjustment.
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