| URG130T6N | URG140T6N | URG150T6N | URG230T6N | URG240S6N | URG240T6N | URG250T6N | URG250L6N | URG250S6N |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 1113 | 238-51546 | 238-51517 Discontinued Service Parts | 238-51009 (Supplement to I&O Manual) 238-51012 238-53393 | QSG | 39699 |
| Spec Sheet | 1113 |
| Service Manual | 238-51546 |
| Parts List | 238-51517 Discontinued Service Parts |
| Operation Manual | 238-51009 (Supplement to I&O Manual) 238-51012 238-53393 |
| Quick Service Guide | QSG |
| Warranty | 39699 |
| U4-30T6FRN | U4-40T6FRN | U4-403S6FRN | U4-5036FRN | U4-60T6FRN |
ULTRA LOW NOX ATMOSPHERIC VENT GAS
| U1-30S6FRN | U1-30T6FRN | U1-40T6FRN | U1-403S6FRN | U1-404T6FRN | U1-50L6FRN | U1-5036FRN | U1-504S6FRN | U1-60T6FRN |
| URG250H6N | URG275H6N | URG2100H6N |
| Spec Sheet | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 1114 | 238-51517 (50 Gal.) 238-51611 (75 & 100 Gal.) Disc. Service Parts Disc. Service Parts | 238-51009 (Supplement to I&O Manual) 238-51012 (50 Gal.) 238-51007 (75 Gal.) 238-51008 (100 Gal.) 238-50999 (Supplement to I&O Manual 75 Gal.) 53393 | QSG | 39699 |
| Spec Sheet | 1114 |
| Parts List | 238-51517 (50 Gal.) 238-51611 (75 & 100 Gal.) Disc. Service Parts Disc. Service Parts |
| Operation Manual | 238-51009 (Supplement to I&O Manual) 238-51012 (50 Gal.) 238-51007 (75 Gal.) 238-51008 (100 Gal.) 238-50999 (Supplement to I&O Manual 75 Gal.) 53393 |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX HIGH INPUT ATMOSPHERIC VENT GAS
| U-1-75S6RN | U-100T6RN |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 140-B | 50628-00A | 49953-00A (75 Gal.) | 47759-00E (75 Gal.) 47656-00C (100 Gal.) 49946-B (100 Gal.) 49945-B (75 Gal.) | QSG | 39699 |
| Spec Sheet | 140-B |
| Service Manual | 50628-00A |
| Parts List | 49953-00A (75 Gal.) |
| Operation Manual | 47759-00E (75 Gal.) 47656-00C (100 Gal.) 49946-B (100 Gal.) 49945-B (75 Gal.) |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX HIGH INPUT ATMOSPHERIC VENT GAS
| U1-XR-403S6FRN | U2-XR-75S6RN | U2-XR-504T6FRN | U2-XR-65T6FRN |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 114-B | 47132A 50628-00A (75 Gal.) | 47133-F 49953-A (75 Gal.) | 46789-00F 44219-00L | QSG | 39699 |
| Spec Sheet | 114-B |
| Service Manual | 47132A 50628-00A (75 Gal.) |
| Parts List | 47133-F 49953-A (75 Gal.) |
| Operation Manual | 46789-00F 44219-00L |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX DAMPER ATMOSPHERIC VENT GAS
| URG1D30T6N | URG1D40S6N | URG1D40T6N | URG1D50T6N |
| URG1PV40S6N | URG1PV50S6N | URG2PV40T6N | URG2PV50H6N | URG2PV50T6N | URG2PV75H6N |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 1255 | 238-51548 238-51562 (75 Gal.) | 238-51525 | 238-53846 40/50 S&T 19-Models 238-51011 40/50 S&T Models 238-51000 50H Models 238-51010 75H Models Supplemental 49754 Supplemental 50320 | QSG | 39699 |
| Spec Sheet | 1255 |
| Service Manual | 238-51548 238-51562 (75 Gal.) |
| Parts List | 238-51525 |
| Operation Manual | 238-53846 40/50 S&T 19-Models 238-51011 40/50 S&T Models 238-51000 50H Models 238-51010 75H Models Supplemental 49754 Supplemental 50320 |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX POWER VENT GAS
| U-1-TW-40S6FRN | U-1-TW-50S6FRN | U-1-TW-60T6FRN |
| Spec Sheet | Service Manual | Parts List | Operation Manual |
| 255-B | 48509-A | 48405-D | 238-45637-00L 238-48214-00B Venting Supplement Venting Supplement |
| Spec Sheet | 255-B |
| Service Manual | 48509-A |
| Parts List | 48405-D |
| Operation Manual | 238-45637-00L 238-48214-00B Venting Supplement Venting Supplement |
ULTRA LOW NOX POWER VENT GAS
| U-2-TW-50T6FRN | U-2-TW-65T6FRN | U-2-TW-75T6RN |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 256-B | 48509-00A 50629-00A (75 Gal.) | 48405-D 50565-A (75 Gal.) | 45637-00N 48214-00B 45917-00P (75 Gal.) Venting Venting Supplemental Manual 75 Gal. 50429a | QSG | 39699 |
| Spec Sheet | 256-B |
| Service Manual | 48509-00A 50629-00A (75 Gal.) |
| Parts List | 48405-D 50565-A (75 Gal.) |
| Operation Manual | 45637-00N 48214-00B 45917-00P (75 Gal.) Venting Venting Supplemental Manual 75 Gal. 50429a |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX POWER VENT GAS
| U-4-TW-40T6FRN | U-4-TW-50T6FRN | U-4-TW-60T6FRN |
| U-1-TW-40S6FRN | U-1-TW-50S6FRN | U-1-TW-60T6FRN |
| URG2PDV40S6N | URG2PDV50H6N | URG2PDV50S6N |
| Spec Sheet | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 1128 | 238-51524 | 238-51006 238-48838 (Supplement to I&O Manual) Venting Supplement Venting Supplement | QSG | 39699 |
| Spec Sheet | 1128 |
| Parts List | 238-51524 |
| Operation Manual | 238-51006 238-48838 (Supplement to I&O Manual) Venting Supplement Venting Supplement |
| Quick Service Guide | QSG |
| Warranty | 39699 |
ULTRA LOW NOX UPDX2 POWER DIRECT VENT MODELS
| UPDX2-50T6FRN | UPDX2-65T6FRN | UPDX2-75T6FRN |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Warranty |
| 127-B | 49399-00A | 48626-C | 47936-00H 48838-00C Venting Supplement Venting Supplement | QSG | 39699 |
| Spec Sheet | 127-B |
| Service Manual | 49399-00A |
| Parts List | 48626-C |
| Operation Manual | 47936-00H 48838-00C Venting Supplement Venting Supplement |
| Quick Service Guide | QSG |
| Warranty | 39699 |
| URG2DV40S6N | URG2DV50S6N | URG2DV50H6N |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Quick Service Guide | Vent Kit Installation Manual | Warranty |
| 1122 | 238-51635 | 238-51519 | Supplement I&O Manual (238-51005) 238-51002 | QSG | (48677) 40/50S Flex (48114) 40/50S Solid (48678) 50H Flex (48166) 50H Solid | 39699 |
| Spec Sheet | 1122 |
| Service Manual | 238-51635 |
| Parts List | 238-51519 |
| Operation Manual | Supplement I&O Manual (238-51005) 238-51002 |
| Quick Service Guide | QSG |
| Vent Kit Installation Manual | (48677) 40/50S Flex (48114) 40/50S Solid (48678) 50H Flex (48166) 50H Solid |
| Warranty | 39699 |
ULTRA LOW NOX DIRECT VENT GAS
| UDH1-504T6FRN | UDH1-65T6FRN | UDH1-75S6FRN |
ULTRA LOW NOX DIRECT VENT GAS
| UDS1-40S6FRN | UDS1-50S6FRN |
| EFR-1-60T1206EN |
| Spec Sheet | Service Manual | Parts List | Operation Manual | Warranty |
| 123 | 45817 | 48204 | 238-48144 Venting Supplement Venting Supplement | 39699 |
| Spec Sheet | 123 |
| Service Manual | 45817 |
| Parts List | 48204 |
| Operation Manual | 238-48144 Venting Supplement Venting Supplement |
| Warranty | 39699 |
