Otis (unitec) does not track the fixtures of different equipment using the job sales number, so you won't be able to "ask the factory".
Beaupeep is right that UT- series keys should be your bladed keys. For the barrel, you're best bet is looking on the back of the cylinder, provided you or a qualified person is able to do this, or else having a ring to try. If you can say what "feature" the barrel key is being used for it may help narrow it down, or have a picture of the front/back. EPCO would be my bet. If the Fireman's service keys are the barrel, try an FEO-K1
