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A refrigeration unit includes a housing including an insulated compartment having opposing first and second walls. A spring rod has a first end mounted at a first location to the first wall of the insulated compartment and a second end mounted at a second location to the second wall of the insulated

A refrigeration unit includes a housing including an insulated compartment having opposing first and second walls. A spring rod has a first end mounted at a first location to the first wall of the insulated compartment and a second end mounted at a second location to the second wall of the insulated compartment. An evaporator assembly includes a component mounted to the insulated compartment by the spring rod. A shoulder of the spring rod exerts a force against the component in a direction toward the first wall to limit movement of the component mounted to the insulated compartment.

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What is claimed is: 1. A refrigeration unit comprising: a housing including an insulated compartment having opposing first and second walls; a spring rod having a first end mounted at a first location to the first wall of the insulated compartment and a second end mounted at a second location to th

What is claimed is: 1. A refrigeration unit comprising: a housing including an insulated compartment having opposing first and second walls; a spring rod having a first end mounted at a first location to the first wall of the insulated compartment and a second end mounted at a second location to the second wall of the insulated compartment; and an evaporator assembly including a component mounted to the insulated compartment by the spring rod; wherein the spring rod has a shoulder formed by a bend in the spring rod offset from the first end, the shoulder exerts a force against the component in a direction toward the first wall to limit movement of the component relative to the spring rod; wherein the component is an evaporator coil, a drip pan or a fan assembly. 2. The refrigeration unit of claim 1, wherein the shoulder of the spring rod exerts a force on a wall of the component near a hole in the component with the hole lined up with an opening in the first wall and a first end portion including the first end of the spring rod extending through both the hole and the opening. 3. The refrigeration unit of claim 1, wherein the component is an evaporator coil. 4. The refrigeration unit of claim 1, wherein the component is a drip pan. 5. The refrigeration unit of claim 4 further comprising a second spring rod that mounts the drip pan to the insulated compartment wherein the second spring rod has a shoulder that exerts a force against the drip pan in a direction toward the first wall to limit movement of the drip pan mounted to the insulated compartment. 6. The refrigeration unit of claim 5, wherein the spring rods are substantially parallel. 7. The refrigeration unit of claim 1, wherein the component is a fan assembly. 8. The refrigeration unit of claim 7 further comprising a thermostat mounted to the fan assembly by a second spring rod having a first end mounted at a first location on a bracket of the fan assembly and a second end mounted at a second location to the fan assembly wherein the second spring rod has a shoulder that exerts a force against the fan assembly, the second spring rod limiting movement of the thermostat mounted to the fan assembly. 9. The refrigeration unit of claim 1, wherein the first end is mounted within a wall opening located at the first location and the second end is mounted within a wall opening located at the second location. 10. The refrigeration unit of claim 1, wherein the spring rod has an unloaded length measured between the ends of the spring rod that is greater than a loaded length on the spring rod measured between the ends of the spring rod as mounted to the insulated compartment. 11. The refrigeration unit of claim 1, wherein the spring rod has a second shoulder formed by a bend offset from the second end that exerts a force against the component in a direction toward the second wall to brace the component mounted to the insulated compartment. 12. A refrigeration unit including an evaporator assembly and a condenser assembly connected to the evaporator assembly, the refrigeration unit comprising: a spring rod supporting the evaporator coil within an insulated compartment, the spring rod having a first end mounted at a first location to the first wall of the insulated compartment and a second end mounted at a second location to the second wall of the insulated compartment; an evaporator coil mounting structure used to mount the evaporator coil in the insulated compartment; wherein the spring rod has a shoulder formed by a bend offset from the first end, the shoulder exerts a force against the evaporator coil mounting structure in a direction toward the first wall to limit movement of the evaporator coil in the insulated compartment. 13. The refrigeration unit of claim 12, wherein the spring rod is a first spring rod, the refrigeration unit further comprising a drip pan assembly and a second spring rod supporting the drip pan assembly, the second spring rod having a first end mounted at a third location to the first wall of the insulated compartment and a second end mounted at a fourth location to the second wall of the insulated compartment wherein the second spring rod has a shoulder that exerts a force against the drip pan assembly in a direction toward the first wall to limit movement of the drip pan assembly mounted to the insulated compartment. 14. The refrigeration unit of claim 13 further comprising a fan assembly and a third spring rod supporting the fan assembly, the third spring rod having a first end mounted at a fifth location to the first wall of the insulated compartment and a second end mounted at a sixth location to the second wall of the insulated compartment wherein the third spring rod has a shoulder that exerts a force against the fan assembly in a direction toward the first wall to limit movement of the fan assembly mounted to the insulated compartment. 15. The refrigeration unit of claim 14 further comprising a thermostat, the thermostat being mounted to the fan assembly by a fourth spring rod. 16. The refrigeration unit of claim 15, wherein the fourth spring rod has a first end mounted to the fan assembly at a first location and a second end mounted to the fan assembly at a second location, the fourth spring rod limiting movement of the thermostat mounted to the fan assembly. 17. The refrigeration unit of claim 13 further comprising a third spring rod supporting the drip pan assembly, the third spring rod having a first end mounted at a fifth location to the first wall of the insulated compartment and a second end mounted at a sixth location to the second wall of the insulated compartment wherein the third spring rod has a shoulder that exerts a force against the drip pan assembly in a direction toward the first wall to limit movement of the drip pan assembly mounted to the insulated compartment. 18. The refrigeration unit of claim 17, wherein the second and third spring rods are substantially parallel. 19. The refrigeration unit of claim 12, wherein the first end is mounted within a wall opening located at the first location and the second end is mounted within a wall opening located at the second location. 20. The refrigeration unit of claim 12, wherein the spring rod has an unloaded length measured between the ends of the spring rod that is greater than a loaded length of the spring rod measured between the ends of the spring rod as mounted to the insulated compartment. 21. The refrigeration unit of claim 12, wherein the shoulder of the spring rod exerts a force on a wall of the component near a hole in the evaporator coil mounting structure with the hole lined up with an opening in the first wall and a first end portion including the first end of the spring rod extending through both the hole and the opening. 22. The refrigeration unit of claim 12, wherein the spring rod has a second shoulder that exerts a force against the evaporator coil mounting structure in a direction toward the second wall to limit movement of the component mounted to the insulated compartment. 23. A method of assembling a refrigeration unit, the method comprising: providing a spring rod having a shoulder located between a first end of the spring rod and an opposite, second end of the spring rod, the shoulder being offset from both the first and second ends of the spring rod; engaging a component of an evaporator assembly with the spring rod; loading the spring rod such that the shoulder of the spring rod is biased against the component; engaging the first end with a first mount located at a first wall of an insulated compartment; and engaging the second end with a second mount located at a second wall of the insulated compartment, the second wall opposing the first wall; the shoulder being biased against the component with the first and second ends engaged with the respective first and second mounts; wherein the component is an evaporator coil assembly, a drip pan assembly or a fan assembly. 24. The method of claim 23, wherein the component is an evaporator coil assembly. 25. The method of claim 23, wherein the component is a drip pan assembly. 26. The method of claim 23, wherein the component is a fan assembly. 27. A refrigeration unit comprising: a housing including an insulated compartment having opposing first and second walls; an evaporator coil at least partially disposed in the insulated compartment; and a spring rod supporting at least one of the evaporator coil, a drip pan and a fan shroud in the insulated compartment, the spring rod having a first end mounted at a first location in the insulated compartment and a second end mounted at a second location of the second wall of the insulated compartment; wherein a linear distance from the first location to the second location is less than an unloaded length of the spring rod. 28. The refrigeration unit of claim 27, wherein the spring rod is mounted at the first location within a first opening in the first wall and at the second location within a second opening within the second wall. 29. The refrigeration unit of claim 27, wherein the spring rod has a compressed length between the first and second walls.