PRODUCT NOMENCLATURE
15-25 Ton Series 20 Model Number Nomenclature
J15 D J N24 A 2 A AA 1 0 1 2 4 A
Nominal Cooling Capacity
J15 = 15 Ton
J18 = 17.5 Ton
J20 = 20 Ton
J25 = 25 Ton
Product Category
D = A/C, Single Pkg.,
Product Identifier
J = 11.0+ EER A/C
Heat Type and Nominal Heat Capacity
C00 = Cooling Only. No field installed electric heat
Gas Heat Options
N24 = 240 MBH Output Aluminized Steel
N32 = 320 MBH Output Aluminized Steel
S24 = 240 MBH Output Stainless Steel
S32 = 320 MBH Output Stainless Steel
Electric Heat Options
E18 = 18 KW
E36 = 36 KW
E54 = 54 KW
E72 = 72 KW
Airflow
A = Std. Drive
B = Std. Drive/Single Input Econo.
C = Std. Drive/Single Input Econo./Power Exhaust (Downflow Only)
D = Std. Drive/Motorized Damper
E = Std. Drive/Motorized Damper/Barometric Relief J = Std. Drive/Single Input Econo./Barometric Relief N = Hi Static Drive
P = Hi Static Drive/Single Input Econo.
Q = Hi Static Drive/Single Input Econo./Power Exhaust (Downflow Only)
R = Hi Static Drive/Motorized Damper
K = Hi Static Drive/Motorized Damper/Barometric Relief S = Hi Static Drive/Single Input Econo./Barometric Relief
Voltage
2 =
4 =
5 =
Product Style
A = Style A
Configuration Options (not required for all units)
These four digits will not be assigned until a quote is requested, or an order placed.
SS Drain Pan
Johnson UNT 1126 Controller (N2 protocol), DFS, APS
Johnson Light Commercial Controls System (LCCS) Rtu Controller
Hot Gas Bypass (Standard on VAV, Optional on CV)
Variable Air Volume, VFD
Variable Air Volume, VFD and Manual Bypass
Variable Air Volume, VFD (BAS ready - for customer provided VFD controller)
Variable Air Volume, VFD and Manual Bypass (BAS ready)
Variable Air Volume, VFD Ready (for customer provided, field installed drive)
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| 2" Pleated filters |
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| 4" Pleated filters |
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| BAS Ready Economizer | ||||||
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| Double Wall Construction |
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| For valid combinations of the above; see the equipment price pages or | ||||
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| the Unitary Sales Tool program; all combinations are not available | ||||
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| Product Generation |
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| 1 = First Generation |
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| 2 = Second Generation |
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| Additional Options | |||
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| Standard Cabinet | Hinged Filter Door & Tool Free Access Cabinet | |||||
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| AA = None |
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| BA = Hinged Filter Door & Tool Free Access Panels | ||||
| AB = Phase Monitor |
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| BB = Phase Monitor, Hinged Filter Door & Tool Free | ||||
| AC = Coil Guard |
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| Access Panels | ||||
| AD = Dirty Filter Switch |
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| BC = Coil Guard, Hinged Filter Door & Tool Free | ||||
| AE = Phase Monitor & Coil Guard | Access Panels | |||||||
| AF = Phase Monitor & Dirty Filter Switch | BD = Dirty Filter Switch, Hinged Filter Door & | |||||||
| AG = Coil Guard & Dirty Filter Switch | Tool Free Access Panels | |||||||
| AH = Phase Monitor, Coil Guard & Dirty Filter Switch | BE = Phase Monitor & Coil Guard, Hinged Filter | |||||||
| RC = Coil Guard & American Flag | Door & Tool Free Access Panels | |||||||
| TA = Technicoat Condenser Coil | BF = Phase Monitor & Dirty Filter Switch, Hinged | |||||||
| TJ = Technicoat Evaporator Coil | Filter Door & Tool Free Access Panels | |||||||
| TS = Technicoat Evaporator & Condenser Coils | BG = Coil Guard & Dirty Filter Switch, Hinged Filter | |||||||
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| Door & Tool Free Access Panels | |
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| BH = Phase Monitor, Coil Guard & Dirty Filter Switch, | |
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| Hinged Filter Door & Tool Free Access Panels | |
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| ZZ = If desired option combination is not listed above, ZZ will be assigned and configuration options will be | ||||||||
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| Installation Options |
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A = No Options Installed |
| N = Options 2 & 3 |
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B = Option 1 |
| P = Options 2 & 4 |
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C = Option 2 |
| Q = Options 2, 3, & 4 |
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D = Options 1 & 2 |
| R = Options 3 & 4 |
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E = Option 3 |
| S = Option 5 |
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F = Option 4 |
| T = Options 1 & 5 |
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G = Options 1 & 3 |
| U = Options 1, 3, & 5 |
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H = Options 1 & 4 |
| V = Options 1, 4, & 5 |
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J = Options 1, 2 & 3 |
| W = Options 1, 3, 4, & 5 |
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K = Options 1, 2, & 4 |
| X = Options 3 & 5 |
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L = Options 1,3 & 4 |
| Y = Options 4 & 5 |
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M = Options 1, 2, 3, & 4 |
| Z = Options 3, 4 & 5 |
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| Options |
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1 = Disconnect |
| 4 = Smoke Detector R.A. |
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2 = |
| 5 = Pwr'd Conv. Outlet |
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3 = Smoke Detector S.A. |
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Johnson Controls Unitary Products | 3 |
