Abstract: An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

Abstract: To assist a player in navigating an open grid within a game or virtual environment, a global indicator and a local indicator are displayed within the virtual environment. The global indicator continuously indicates a straight line direction between an object controlled by the player and a next goal unattained within the virtual environment. As the object approaches within a predefined distance from a turn that should be taken to reach the next unattained goal, a local indicator is displayed showing the direction that the object should be turned to reach the goal. The local indicator is removed from the display after a predefined time has elapsed. Preferably, the local indicator is not displayed before a turn so long as continuing to move the object along a current path without turning at the next turn will permit the object to reach the next unattained goal.

Abstract: To assist a player in navigating an open grid within a game or virtual environment, a global indicator and a local indicator are displayed within the virtual environment. The global indicator continuously indicates a straight line direction between an object controlled by the player and a next goal unattained within the virtual environment. As the object approaches within a predefined distance from a turn that should be taken to reach the next unattained goal, a local indicator is displayed showing the direction that the object should be turned to reach the goal. The local indicator is removed from the display after a predefined time has elapsed. Preferably, the local indicator is not displayed before a turn so long as continuing to move the object along a current path without turning at the next turn will permit the object to reach the next unattained goal.

Abstract: A protective housing and latch mechanism for securing the protective housing in a position protecting the customary housing for a coin mechanism and coin box. The protective housing permits normal operation of the coin mechanism and is of sufficient strength to resist deformation by sledge hammer blows. The protective housing carries a latch mechanism which locks the protective housing to the original housing for the coin mechanism so as to prevent separation of the two housings. The latch mechanism includes a pivotally mounted latch member which is urged to a latching position and held in that position by a barrel type lock which is disposed in an inaccessible position within a hardened block.