Sterling RT - Manual (Page 33)

33
XIII. UNIT NUMBER DESCRIPTION
Digit E X X — 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 +
Item Prefi x UT CA FT FM RA CO GT GC SV MT MS AI AC AS
(Internal use Only)
1, 2 - Unit Type [UT]
RT - Natural Vent Rooftop
PV - Power Vented Rooftop
AH - Air Handler
EV - Evaporative Cooler Only
3, 4 - Capacity [CA]
Single Furnace Double Furnace
10 - 100,000 BTU/HR 50 - 500,000 BTU/HR
15 - 150,000 BTU/HR 60 - 600,000 BTU/HR
20 - 200,000 BTU/HR 70 - 700,000 BTU/HR
25 - 250,000 BTU/HR 80 - 800,000 BTU/HR
30 - 300,000 BTU/HR
35 - 350,000 BTU/HR
Triple Furnace
40 - 400,000 BTU/HR 12 - 1,200,000 BTU/HR
5 - Furnace / Access Type [FT]
A - Standard Temperature Rise (20-60 Deg. F), Right Side Access
B - Standard Temperature Rise (20-60 Deg. F), Left Side Access
*C - High Temperature Rise (60-90 Deg. F), Right Side Access
*D - High Temperature Rise (60-90 Deg. F), Left Side Access
0 - None
Z - Other
*Note: Unit Type [PV] not available in Capacity [30].
6 - Furnace Construction Material [FM]
1 - Aluminized Steel
2 - 409 Stainless Steel (First Furnace Only)
3 - 409 Stainless Steel (All Furnace Sections)
4 - 321 Stainless Steel (First Furnace Only)
5 - 321 Stainless Steel (All Furnace Sections)
6 - 409 Stainless Steel Package (First Furnace Only)
7 - 409 Stainless Steel Package (All Furnace Sections)
8 - 321 Stainless Steel Package (First Furnace Only)
9 - 321 Stainless Steel Package (All Furnace Sections)
0 - None
Z - Other
7 - Rooftop Arrangement (B - L assumes furnace sections) [RA]
A - Duct Furnace M - Air Handler (Standard)
B - Blower (Standard) N - Air Handler (Standard) / Plenum
C - Blower (Standard) / Plenum P - Air Handler (Standard) / Evap.
D - Blower (Standard) / Evap. R - Air Handler (Standard) / Evap. / Plenum
E - Blower (Standard) / Evap. / Plenum S - Air Handler (High CFM)
G - Blower (High CFM) T - Air Handler (High CFM) / Plenum
J - Blower (High CFM) / Plenum U - Air Handler (High CFM) / Cooling
K - Blower (High CFM) / Cooling W - Air Handler (High CFM) / Cooling /Plenum
L - Blower (High CFM) / Cooling / Plenum 0 - None
Z - Other
8 - Coil Options [CO]
A - DX Coil, 4 Row, Single Circuit E - Chilled Water Coil, 4 Row
B - DX Coil, 4 Row, Dual Circuit G - Chilled Water Coil, 6 Row
C - DX Coil, 6 Row, Single Circuit 0 - None
D - DX Coil, 6 Row, Dual Circuit Z - Other (Special)
9 - Gas Type [GT]
1 - Natural Gas
2 - LP Gas (Propane)
3 - Natural Gas w/100% Shutoff
0 - None
10 - Gas Control [GC]
A - Single Stage Gas (Standard)
B - Two Stage Gas
H - Electronic Modulation w/Room Sensing
J - Electronic Modulation w/Duct Sensing
K - Electronic Modulation w/Duct Sensing & Ovrd. Stat
L - Electronic Modulation w/External 4-20 mA Input (Furnace One)
M - Electronic Modulation w/External 4-20 mA Input (All Furnaces)
N - Electronic Modulation w/External 0-10 VDC Input (Furnace One)
P - Electronic Modulation w/External 0-10 VDC Input (All Furnaces)
R - Two Stage Remote Temperature Control w/Duct Sensor
S - Three Stage Remote Temperature Control w/Duct Sensor
T - Four Stage Remote Temperature Control w/Duct Sensor
U - S-350 2 Stage Modular Electronic Control System
W - S-350 3 Stage Modular Electronic Control System
X - S-350 4 Stage Modular Electronic Control System
Y - S-350 6 Stage Modular Electronic Control System
0 - None
Z - Other
11 - Supply Voltage [SV]
1 - 115/1/60 5 - 230/3/60
2 - 208/1/60 6 - 460/3/60
3 - 230/1/60 7 - 575/3/60
4 - 208/3/60 0 - None
Z - Other
12 - Motor Type [MT]
1 - Open Drip Proof (Standard) 4 - Premium Effi ciency, Totally Enclosed
2 - Totally Enclosed 0 - None
3 - Premium Effi ciency, Open Drip Proof Z - Other
13 - Motor Sizes [MS]
A - 1/2 HP. w/Contactor M - 1-1/2 HP. w/Mag. Starter 1 - 1 HP. VFD
B - 3/4 HP. w/Contactor N - 2 HP. w/Mag. Starter 2 - 1-1/2 HP. VFD
C - 1 HP. w/Contactor P - 3 HP. w/Mag. Starter 3 - 2 HP. VFD
D - 1-1/2 HP. w/Contactor R - 5 HP. w/Mag. Starter 4 - 3 HP. VFD
E - 2 HP. w/Contactor S - 7-1/2 HP. w/Mag. Starter 5 - 5 HP. VFD
G - 3 HP. w/Contactor T - 10 HP. w/Mag. Starter 6 - 7-1/2 HP. VFD
H - 5 HP. w/Contactor U - 15 HP. w/Mag. Starter 7 - 10 HP. VFD
J - 1/2 HP. w/Mag. Starter 0 - None 8 - 15 HP. VFD
K - 3/4 HP. w/Mag. Starter Z - Other
L - 1 HP. w/Mag. Starter
14 - Air Inlet Confi guration [AI]
1 - Outside Air (OA) 4 - Outside Air and Return Air (OA/RA)
2 - Outside Air w/Air Hood 5 - Outside and Return Air w/Air Hood
3 - Return Air (RA) 0 - None
Z - Other
15 - Air Control & Damper Arrangement [AC]
A - Outside Air 2 Pos. Motor / Spring Return
B - Return Air 2 Pos. Motor / Spring Return
C - OA/RA 2 Pos. / Spring Return
D - OA/RA Mod. Mtr. w/Mixed Air Control / Min. Pot.
E - OA/RA Mod. Mtr. w/Mixed Air Control / Min. Pot. / SR
G - OA/RA Mod. Mtr. w/Mixed Air Control
H - OA/RA Mod. Mtr. w/Mixed Air Control / SR
J - OA/RA Mod. Mtr. w/Min. Pot.
K - OA/RA Mod. Mtr. w/Min. Pot. / SR
L - OA/RA Mod. Mtr. w/Dry Bulb / Mixed Air Control / Min. Pot.
M - OA/RA Mod. Mtr. w/Dry Bulb / Mixed Air Control / Min. Pot. /SR
N - OA/RA Mod. Mtr. w/Enthalpy Controlled Economizer / SR
P - OA/RA Mod. Mtr. w/Pressure Control (Space Pressure)
Q - OA/RA Mod. Mtr. w/Carbon Dioxide (CO
2
) R/A Monitor
R - OA/RA Mod. Mtr. w/S-350-P Proportional Mixed Air Control / SR
S - OA/RA Mod. Mtr. w/0-10 VDC & 4-20 mA Analog Input (External Input)
T - OA/RA Mod. Mtr. w/0-10 VDC & 4-20 mA Analog Input / SR (External Input)
U - ASHRAE Cycle I (OA/RA 2 Pos. Mtr. w/Warm-up Stat / SR)
W - ASHRAE Cycle II (OA/RA Mod. Mtr. w/Warm-up Stat / Mixed Air / Min. Pot. / SR)
X - ASHRAE Cycle III (OA/RA Mod. Mtr. w/Warm-up Stat / Mixed Air / SR)
Y - Manual Dampers
0 - None
MOD = Modulating Damper Motor
Z - Other OA = Outside Air RA = Return Air SR = Spring Return
16 - Accessories [AS]
A1 - Moisture Eliminators H1 - Return Firestat
A2 - Horizontal Return H2 - Supply Firestat
A3 - Low Leak Damper H3 - Freezestat w/Time Delay
A5 - Furnace Drip Pan, 409 Stainless H4 - Ambient Lockout - Single Furnace
A6 - High Altitude Unit H6 - Ambient Lockout - Dual Furnace
A7 - High Pressure Regulator H7 - Ambient Lockout - Triple Furnace
A8 - Unit De-rate
J1 - Interlock Relay - 24V Coil DPDT 10A, Plug-in
B1 - Filters - 1" WA (Standard) J2 - Interlock Relay - 24/115V Coil SPDT 10A
B2 - Filters - 2" WA J3 - Interlock Relay - 24/115/230V Coil DPDT 10A
B3 - Filters - 2" TA J4 - Interlock Relay - 24V Coil 4PDT 10A
B4 - Filters - 1" 30%
B5 - Filters - 2” 30%
K1 - Manual Reset High Limit Switch
K2 - High / Low Gas Pressure Limit Switches
C1 - Evap. Cooler - Fill & Drain Kit K3 - Status Lamp (Elec. Cabinet)
C2 - Evap. Cooler - 12" CELdek ® Media K4 - Fan Time Delay (Arrangement “A” Only)
C3 - Evap. Cooler - Freezestat K5 - Air Flow Prove Switch (Dwyer 1910-0)†
w/o Time Delay
C4 - Evap. Cooler - 8" GLASdek
® Media L1 - 30 Amp, Fused Disconnect Switch†
C5 - Evap. Cooler - 12" GLASdek ® Media L2 - 30 Amp, Non Fused Disconnect Switch†
L3 - 60 Amp, Fused Disconnect Switch†
D1 - Time Clock - 7 Day† L4 - 60 Amp, Non Fused Disconnect Switch†
D2 - Time Clock - 24 Hour†
N2 - Through the Base Utility Penetration
E1 - Clogged Filter Switch N3 - Service Convenience Package
E2 - G.F.I. Convenience Outlet 115VAC† N6 - Double Wall Construction
E3 - Remote Control Panel†
E4 - Manual Blower Switch
R1 - Field Installed VFD
R2 - Factory Installed VFD
F1 - Ductstat - One Stage† R3 - VFD Remote Keypad for use with w/R1†
F2 - Ductstat - Two Stage† R4 - CO
2
Sensor - 100% OA†
R5 - CO
2
Sensor - Mixed Air†
G1 - Thermostat - T87K w/Subbase† R6 - Pressure Sensor†
G2 - Thermostat - T87K w/Subbase & Guard† R7 - 2-Speed VFD Relays
G3 - Thermostat - T834N w/Subbase (Sterling Stat)† R8 - 3-Speed VFD Relays
G4 - Thermostat - TB8220U - 7 Day Programmable†
G5 - Thermostat - TH5220D (Two Stage)†
0 - None
G6 - Locking Thermostat Cover† Z - Other (Specify)
Note: All thermostats are mercury free.
† = Field Installed