User manual FIELD CONTROLS 46273500

[. . . ] The VRV gate closes again once the abnormal condition is corrected. Remove the oil pump and air bands from the burner housing. Install the sealing gaskets onto the burner housing. Failure to install the ring gasket onto the burner housing will result in unlevel boot, noisy operation, and improper CO2 readings. [. . . ] Fasten using three (3) sheet metal screws spaced 120° apart on all joints. Assemble VRV balance weight onto the gate. Mount the VRV assembly onto the tee and fasten with a screw and nut in collar tabs. To ensure proper operation, check the gate for being level across the pivot points and plumb. Refer to Figure 9 for general installation layout. Mount intake hood 12 inches above finished grade. If mounting on the side of a building prone to drifting snow, mount 12 inches above the snow line. Mount at least 12 inches from either side of the vent termination and on the same wall if sidewall venting. Always mount with the inlet vent termination opening pointing down. NOTE: Make sure hood is kept free of debris. Page 3 Figure 4 Figure 5 Figure 6 INLET VENT TERMINATION INSTALLATION 1. Cut a 4-1/4" diameter hole through the sidewall of the building. Slide the inlet vent pipe through the hole and fasten to the wall with appropriate fasteners. Seal the edges of the mounting plate with a silicone sealant or equivalent. Figure 7 Figure 8 Figure 9 Page 4 DUCT WORK INSTALLATION 1. Duct length distance, a maximum of 30 linear feet of standard duct pipe and two (2) 90° elbows at maximum firing rate. Subtract 7 feet from the maximum linear feet for every 90° elbow added. Longer pipe lengths require the use of a larger pipe between the VRV and the intake hood. It also requires the use of a vent pipe increaser at the VRV and a reducer at the intake hood. (See Table 1) Table 1 Pipe Diameter Maximum Equivalent Pipe Feet (between Air bootTM and duct termination) Elbow* Equivalent Feet Reducer or Increaser Equivalent Feet 4" 5" 6" 44' 60' 90' 7' 9' 11' (4" to 5") 3' (4" to 6") 6' *Note: Subtract the elbow or reducer equivalent feet from the maximum equivalent feet to get maximum linear feet of pipe. 2. Route the duct work from the VRV tee to the inlet vent termination with as minimum a number of elbows as possible. Secure and support the duct work for the design and weight of the material used, to prevent physical damage and separation of joints. [. . . ] Re-check the burners operation and adjust accordingly. Lock the adjustment weight in position by tightening the hex nut on the VRV gate. Page 5 TROUBLE SHOOTING PROBLEM: Low CO2 after AIR BOOTTM installation. Flow restrictor pan not installed on Beckett Burners only with inputs to . 75 or less. PROBLEM: Pump coupler failure or noisy right after installation. Oil pump mounting bolts are over torqued or unevenly torqued. [. . . ]