HOW TO SPECIFY SDV UNITS

Transcription

1 HOW TO SPECIFY SDV UNITS MODEL UNIT CONFIG LINER CASING OPTIONS CONST. SIDE INLET SIZE DISCHARGE OPTIONS CONTROL TYPE UNIT ACCESSORIES HEAT kw ELECTRIC HEAT ACCESSORIES SCR HEAT ACCESSORIES SDV 0 - Standard Construction (no electric heat or attenuator) 1 - Attenuator 3 - Electric Heat 0-1/2 Dual Density Lining 1-1 Dual Density Lining 2 - Insul-Guard (13/16 Rigid Duct Board) 3 - No Liner 4 - Galvanized Sheet Metal Liner 5 - Enviroseal (fiber free) 0-22 Gauge 1-22 Gauge w/ Access Doors 2-20 Gauge 3-20 Gauge w/ Access Doors 5-22 Gauge w/ Access Doors (Cam Lock Fasteners) 6-20 Gauge w/ Access Doors (Cam Lock Fasteners) R - Right L - Left } Controls & Damper Side 04 - Inlet Size 4 (Reducer) 10 - Inlet Size Inlet Size 5 (Reducer) 12 - Inlet Size Inlet Size Inlet Size Inlet Size Inlet Size Inlet Size Inlet Size Standard Rectangular F - 5 (8 ) 1 - One Round Outlet G - 2 (10 ) A - 2 (6 ) H - 3 (10 ) B - 3 (6 ) J - 4 (10 ) C - 2 (8 ) K - 5 (10 ) D - 3 (8 ) L - 2 (12 ) E - 4 (8 ) M - 3 (12 ) None Electric Heat E/C11 - E13 (120V / 1φ) E/C21 - E23 (208V / 1φ) E/C31 - E33 (240V / 1φ) E/C41 - E43 (277V / 1φ) E/C61 - E63 (208V / 3φ) E/C91 - E93 (480V / 3φ) - 4 Wire 0 - None A - Chicago Code D - Controls Disconnect Switch (toggle) E - Dust-Tight Sealing for Control Enclosure G - 24V / 24V Transformer H - 120V / 24V Transformer J - 208V / 24V Transformer K - 240V / 24V Transformer L - 277V / 24V Transformer S - Hanger Brackets 0 - None B - Mercury Contactor C - Fusing K - Fused Door Interlocking Disconnect Switch L - Non-Fused Door Interlocking Disconnect Switch No Controls/No Control Enclosure Analog Pneumatic Digital - Contact Application Engineer For Field Mounted Controls w/ Control Enclosure: Analog/DDC - DFMT 0 - None F - Fusing D - Door Interlocking Disconnect Switch P - Pneumatic Heater Hot Water Heat W11 - Right Hand, 1 row W12 - Right Hand, 2 row W13 - Right Hand, 3 row W14 - Right Hand, 4 row W21 - Left Hand, 1 row W22 - Left Hand, 2 row W23 - Left Hand, 3 row W24 - Left Hand, 4 row SD -3 * PLEASE SEE NOTES PAGES FOR EXPLANATIONS OF ALL OPTIONS

2 Notes This page has intentionally been left blank. SD - 4

3 LIST PRICES MODEL: SDV SDV Single Duct Terminal Unit Unit Config, Lining, Casing & Discharge Options Casing Sizes 4, 5, 6 7, Base Price - Standard Construction (No Electric Heat or Attenuator) (0) Unit Configuration Attenuator (1) Electric Heat (3) (refer to page SDV-7 for list add) Subtotal for Unit Configuration 1/2 Dual Density Fiberglass (0) 1 Dual Density Fiberglass (1) Insul-guard TM (2) No Liner (3) Galvanized Sheet Metal (4) (1/2 Double Wall) Enviroseal TM (5) Lining Options Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Basic Unit Basic Unit w/ Discharge Attn. or Electric Reheat Perforated Sheet Metal (Double Wall) Subtotal for Lining Options Contact Tuttle & Bailey Casing Options 22 Gauge (0) Gauge w/ Access doors (1) Gauge (2) Gauge w/ Access doors (3) Gauge w/ Access doors w/ Cam Lock Fasteners (5) Gauge w/ Access doors w/ Cam Lock Fasteners (6) Subtotal for Casing Options Effective Date 07/08 CFM without Electric Heat or with Hot Water Heat Size Min CFM Max CFM SD-5

4 Control Type & Unit Accessories List Prices MODEL: SDV Discharge Options Standard Rectangular (0) One Round Discharge (1) Two (2) 6" Round Discharges (A) Three (3) 6" Round Discharges (B) Two (2) 8" Round Discharges (C) Three (3) 8" Round Discharges (D) Four (4) 8" Round Discharges (E) Five (5) 8" Round Discharges (F) Two (2) 10" Round Discharges (G) Three (3) 10" Round Discharges (H) Four (4) 10" Round Discharges (J) Five (5) 10" Round Discharges (K) Two (2) 12" Round Discharges (L) Three (3) 12" Round Discharges (M) Subtotal for Discharge Options Casing Sizes 4, 5, 6 7, Pneumatic Analog FMA Control Type 0000: No Controls/No Control Enclosures 1200: DA/NO Dual Min : DA/DO Dual Max 1202: DA/NO : RA/NO : DA/NC : RA/NC 2200: Analog Cooling 2201: Analog Cooling w/ Auto Change Over 2202: Analog Cooling w/ Electric Heat 2203:Analog Cooling W/ Hot Water Heat Factory Mounting Field Mounting (PFMT/DFMT) Subtotal for Control Type Unit Accessories Chicago Code (A) Controls Disconnect Switch (D) Dust Tight Sealing for Control Enclosure (E) 24V/24V Transformer (G) 120V/24V Transformer (H) 208V/24V Transformer (J) 240V/24V Transformer (K) 277V/24V Transformer (L) Hanger Brackets (S) Subtotal for Unit Accessories SD - 6

5 Electric & Hot Water Heat List Prices Hot Water MODEL: SDV Heat 1Row(W11/W21) 2Row(W12/W22) 3Row(W13/W23) 4Row(W14/W24) Subtotal for Hot Water Heat Casing Sizes 4, 5, 6 7, E L E C T R I C H E A T S T A N D A R D S C R kw E11, E21, E31, E kw kw kw E12, E22, E32, E kw kw kw E13, E23, E33, E kw kw kw E61, E kw kw kw E62, E kw kw kw E63, E kw kw Subtotal for Standard Electric Heat C11 C21 C31 C41 C61 C91 Subtotal for SCR Electric Heat See page SD-9 for available kw Ranges. Standard Pneumatic Heater list add $40 SCR Pneumatic Heater (P) list add $ kw kw kw kw kw kw kw kw kw kw kw ,190 1,190 1,190 1,190 1,190 1,190 1,190 1,429 1,429 1,429 1,429 1,429 1,429 1,429 1,190 1,190 1,190 1,190 1,190 1,190 1,190 1,429 1,429 1,429 1,429 1,429 1,429 1,429 SD - 7

6 Electric and SCR Heat Accessories MODEL: SDV List Prices Casing Sizes 4, 5, 6 7, Electric Heat Coil Accessories E11, E21, E31, E kw kw kw E12, E22, E32, E42 Mercury Contactor (B) kw E13, E23, E33, E kw kw E61-E63, E91-E93 All kw Fusing (C) All Single Phase Voltages All kw All Three Phase Voltages All kw All Single Phase Voltages kw Fused Door Interlocking All Single Phase Voltages kw Disconnect Switch (K) All Three Phase Voltages All kw Non-Fused Door Interlocking Disconnect Switch (L) All Phases and Voltages All kw Subtotal for Electric Heat Coil Accessories MODEL: SDV Casing Sizes 4, 5, 6 7, SCR Heat Accessories Fusing (F) All Single Phase Voltages All kw All Three Phase Voltages All kw Door Interlocking Disconnect Switch (D) All Phases and Voltages All kw Pneumatic Heater (P) All Phases and Voltages All kw Subtotal for SCR Heat Accessories SD - 8

7 Electric Heat Ranges List Prices g ( ) ELECTRIC HEAT RANGES (kw) Size E11 E12 E13 Size E21 E22 E23 Size E31 E32 E Size E41 E42 E43 Size E61 E62 E63 Size E91 E92 E SCR Heater kw Ranges Size Base Unit CFM SCR Heater Codes C11 C21 C31 C41 C61 C CFM RANGES CFM w/ Electric Heat Size Min CFM Max CFM SD - 9

8 SDV Single Duct Terminal Unit General Notes on How To Specify STANDARD FEATURES Patented Flo-Cross Sensor which features 24 point upstream and downstream sensing with center averaging chambers and exclusive amplification wings (Patent # 4,453,419) Industry standard round inlet collars sized to accept either flexible or rigid duct Round damper blade constructed of elastomeric gasket sandwiched between two heavy-duty galvanized steel plates Damper shaft with Delrin bearings. Shaft features a position indicator for easy identification of damper angle Slip and Drive connection on the discharge plenum Flo-Cross Sensor balancing curve label Fire rated pneumatic tubing comes on all units UNIT CONFIGURATION Standard Construction (0) - This configuration is used with a No Heat or Hot Water Heat option. This option does not include an attenuator. Attenuator (1) - This configuration is used with a No Heat or Hot Water Heat option. It is a integral attenuator. Electric Heat (3) - This configuration is required for Electric Heat. It cannot be used with No Heat or Hot Water Heat. The Electric Heat configuration comes standard with the integral attenuator. List add for electric heat is incorporated in the Electric Heat pricing. Not compatible with access doors. LINER 1/2 Dual Density Lining (0) - 1/2 thick fibrous glass blanket with a black top layer and a green core. Complies with NFPA 90A, NFPA 90B, UL 181 and ASTM C R value at 75ºF is This insulation is glued to the terminal unit. 1 Dual Density Lining (1) - 1 thick fibrous glass blanket with a black top layer and a green core. Complies with NFPA 90A, NFPA 90B, UL 181 and ASTM C R value at 75ºF is This insulation is glued to the terminal unit. Insul-Guard (2) - 1 Rigid Duct Board, resin bonded fibrous glass board, with a tough, damage-resistant, flame retardant, reinforced aluminum foil facing. Complies with NFPA 90A, NFPA 90B, UL 181 and UL723. R value at 75ºF is This insulation is glued to the terminal unit and secured by Z strips at the ends. No Liner (3) - No insulation. Notes Galvanized Sheet Metal (4) - 1/2 Double Wall, dual density lining with a piece of sheet metal covering the entire liner. Not compatible with Cam Lock Access Doors. Standard Access Door casing options 1 and 3 are available. It is compatible with a discharge attenuator and electric heat. This insulation is glued to the terminal unit and secured by Z strips at the ends. Enviroseal (5) - 3/8 Engineered Polymer Foam Insulation, fiber free insulation. Complies with NFPA 90A, NFPA 90B, UL 181 and ASTM C 534. R value at 75ºF is 4. This insulation is glued to the terminal unit and mechanically fastened by rivets to the terminal unit casing. Not compatible with electric heat. CASING OPTIONS Construction 22 Gauge (0) - The construction of the terminal unit uses 22-gauge sheet metal. 22 Gauge w/ Access Door (1) - The construction of the terminal unit uses 22-gauge sheet metal with an access door mounted to the bottom of the terminal unit secured by screws. Not compatible with Electric Heat. Not avavailable on size 24 with standard construction unit configuration. 20 Gauge (2) - The construction of the terminal unit uses 20-gauge sheet metal. 20 Gauge w/ Access Door (3) - The construction of the terminal unit uses 20-gauge sheet metal with an access door mounted to the bottom of the terminal unit secured by screws. Not compatible with Electric Heat. Not avavailable on size 24 with standard construction unit configuration. 22 Gauge w/ Access Door (Cam Lock Fasteners) (5) - The construction of the terminal unit uses 22-gauge sheet metal with an access door mounted to the bottom of the terminal unit secured by Cam Lock Fasteners. Not compatible with Galvanized Sheet Metal Liner, Electric Heat, or Size Gauge w/ Access Door (Cam Lock Fasteners) (6) - The construction of the terminal unit uses 20-gauge sheet metal with an access door mounted to the bottom of the terminal unit secured by Cam Lock Fasteners. Not compatible with Galvanized Sheet Metal Liner, Electric Heat, or Size 24. SD-10 Effective Date 07/08

9 General Notes on How to Specify Notes DAMPER/CONTROL LOCATION Right (R) - Controls and damper shaft are located on the right hand side of the terminal unit. If you are looking at the inlet of the terminal unit, and the primary air is hitting you in the back of the head, then your right is the right hand of the terminal unit. Left (L) - Controls and damper shaft are located on the left hand side of the terminal unit. If you are looking at the inlet of the terminal unit, and the primary air is hitting you in the back of the head, then your left is the left hand of the terminal unit. INLET SIZE 04 - Inlet diameter of 4 inches (actual size is 3-7/8"), 6" to 4" reducer is used for this size 05 - Inlet diameter of 5 inches (actual size is 4-7/8"), 6" to 5" reducer is used for this size 06 - Inlet diameter of 6 inches (actual size is 5-7/8") 07 - Inlet diameter of 7 inches (actual size is 6-7/8") 08 - Inlet diameter of 8 inches (actual size is 7-7/8") 10 - Inlet diameter of 10 inches (actual size is 9-7/8") 12 - Inlet diameter of 12 inches (actual size is 11-7/8") 14 - Inlet diameter of 14 inches (actual size is 13-7/8") 16 - Inlet diameter of 16 inches (actual size is 15-7/8") 24 - Inlet diameter of 24x16 inches, rectangular (actual size is 23-7/8" x 15-7/8") DISCHARGE OPTIONS (No Slip and Drive) Standard Rectangular (0) - Standard rectangular outlet with Slip and Drive connections One Round Outlet (1) - Round outlet that matches the inlet size. No Slip and Drive (not available for size 24) Two 6" Outlets (A) - Two 6" round outlets, only available with sizes 4, 5 and 6 Three 6" Outlets (B) - Three 6" round outlets, only available with sizes 4, 5 and 6 Two 8" Outlets (C) - Two 8" round outlets, only available with sizes 7 and 8 Three 8" Outlets (D) - Three 8" round outlets, only available with sizes 7, 8 and 10 Four 8" Outlets (E) - Four 8" round outlets, only available with sizes 7, 8 and 10 Five 8" Outlets (F) - Five 8" round outlets, only available with size 8 Two 10" Outlets (G) - Two 10" round outlets, only available with size 10 Three 10" Outlets (H) - Three 10" round outlets, only available with sizes 10, 12, 14 and 16 Four 10" Outlets (J) - Four 10" round outlets, only available with sizes 10, 12, 14 and 16 Five 10" Outlets (K) - Five 10" round outlets, only available with sizes 12, 14 and 16 Two 12" Outlets (L) - Two 12" round outlets, only available with sizes 12, 14 and 16 Three 12" Outlets (M) - Three 12" round outlets, only available with sizes 12, 14 and 16 CONTROL TYPE No Controls (0000) Components Supplied: Pneumatic Tubing Compatible with: Reheat Type: Hot Water Heat Reheat Type: No Heat Reheat Type: Electric Heat Unit Accessories: Controls Disconnect Switch (D) Unit Accessories: Dust Tight Sealing for Control Enclosure (E) Unit Accessories: Transformers (any voltage) This control sequence does not come with a control enclosure or balancing tees. SD - 11

10 General Notes on How to Specify Notes Pneumatic Controls Components supplied on all Pneumatic Control Sequences: KMC Four Function Pneumatic Controllers (CSC-3011) KMC Pneumatic Actuators (MCP-8031) Balancing Tees Pneumatic Tubing Compatible with: Reheat Type: No Heat Reheat Type: Hot Water Heat Reheat Type: Electric Heat Unit Accessories: Controls Disconnect Switch (D) Unit Accessories: Dust Tight Sealing for Control Enclosure (E) Unit Accessories: Transformers (any voltage, unless Electric Heat is selected) Pneumatic Controls are not supplied with a thermostat from T&B, thermostats must be supplied by others in the field. All Pneumatic Controls are piped by T&B and will be calibrated by T&B if any CFM on the order is greater than 0. No control enclosure supplied unless Electric Heat is selected Direct Acting (DA) Normally Open (NO) Dual Minimum Control Sequence comes with a High Pressure Selector (KMC model RCC-1108) and a Pressure Regulator Valve (KMC Model RCC-1112). The High Pressure Selector switches the controller between the primary minimum and the secondary minimum. The Pressure Regulator Valve receives a signal from a secondary main line, with a pressure signal of 0 psig for cooling mode and a pressure signal of 15 psig for heating mode, to tell the high pressure selector which minimum to use Direct Acting (DA) Normally Open (NO) Dual Maximum Control Sequence comes with High Pressure Selectors (KMC model RCC-1108) and two Pressure Regulator Valves (KMC Model RCC-1112). The High Pressure Selector switches the controller between the primary maximum and the secondary maximum. The Pressure Regulator Valves receives a signal from the thermostat, a pressure signal of 3 psig or less to tell the high pressure selector which maximum to use Direct Acting (DA) Normally Open (NO) Reverse Acting (RA) Normally Open (NO) Direct Acting (DA) Normally Closed (NC) Reverse Acting (RA) Normally Closed (NC) SD - 12

11 General Notes on How to Specify Notes Analog Controls Components supplied on all Analog Control Sequences: Control Enclosure (NEMA 1) KMC Analog Controller/Actuator (CSP-5001) KMC Analog Thermostat (see control sequence for exact model number) Pneumatic Tubing Balancing Tees Compatible with: Unit Accessories: Controls Disconnect Switch (D) (except for 2202) Unit Accessories: Dust Tight Sealing for Control Enclosure (E) Unit Accessories: Transformers (except when Electric Heat is selected, then the transformer is included w/ Electric Heat) All Analog Controls are piped and wired by T&B, and will be calibrated by T&B if any CFM on the order is greater than 0. Transformers are not a supplied as standard on Analog Control Sequences. They must be selected from the Unit Accessories, if required Cooling only control sequence comes with a KMC Thermostat CTE This sequence is only available with the reheat type of No Heat Cooling only with Auto Changeover control sequence comes with a KMC Thermostat CTE-5103 and a KMC Changeover Duct Sensor STE This sequence is only available with the reheat type of No Heat Cooling with Electric Heat control sequence comes with a KMC Thermostat CTE-5104 and a KMC Reheat Relay Module REE This sequence is only available with the reheat type of Electric Heat Cooling with Hot Water Heat control sequence comes with a KMC Thermostat CTE-5104 and a KMC Reheat Relay Module REE This sequence is only available with the reheat type of Hot Water Heat. FMA Controls Components supplied on all FMA Control Sequences: Control Enclosure (NEMA 1) Pneumatic Tubing Compatible with: Unit Accessories: Controls Disconnect Switch (D) (except when Electric Heat is selected) Unit Accessories: Dust Tight Sealing for Control Enclosure (E) Unit Accessories: Transformers (except when Electric Heat is selected) All FMA control sequences are available with the reheat type Electric Heat, BUT only the DFMT or factory mounted controls are available with No Heat or Hot Water Heat. PFMT is only available with Electric Heat. All FMA control sequences are piped and wired by T&B. T&B cannot calibrate FMA Controls. Transformers are not supplied as standard on DFMT or factory mounted controls. They must be selected from the Unit Accessories, if required. If Electric Heat is selected, then a transformer matching the electric heater voltage is supplied as a standard. Factory Mounting of controls supplied by others - Please contact a T&B Applications Engineer before ordering. These controls sequences will utilize controls supplied to the T&B manufacturing facility by others. Each of these control sequences needs to be approved by T&B engineering before the order can go into production (please see FMA Section, page SD-23. T&B requires a FMA controls checklist and a legible wiring diagram before the order can be released. Balancing tees are supplied with these control sequences. PFMT - Field mounted Pneumatic Controls supplied by others with Electric Heat. Balancing tees are not supplied with PFMT DFMT - Field mounted FMA Controls supplied by others. Balancing tees are not supplied with DFMT. SD - 13

12 General Notes on How to Specify Notes UNIT ACCESSORIES Chicago Code (A) - Chicago Code option includes a dust tight control enclosure and a dust tight toggle switch. Chicago Code is not a control enclosure, but an add on to an existing control enclosure. Compatible with: Controls: Analog and FMA Controls Controls: Pneumatic Controls Unit Accessories: Dust Tight Sealing (E) Unit Accessories: Controls Disconnect Door Switch (D) Electric Heat Accessories: Door Fused Interlocking Disconnect Switch (K) Electric Heat Accessories: Non-Fused Interlocking Disconnect Switch (L) Electric Heat Accessories: Fusing (C) Controls Disconnect Switch (D) - Controls Disconnect Switch is a toggle disconnect switch. It turns off the power to the control enclosure. Compatible with: Controls: Analog Controls and FMA w/ No Heat & Hot Water Heat Controls: Pneumatic Controls Controls: Any controls w/ Electric Heat Dust Tight Sealing for Control Enclosure (E) - Dust Tight for Control Enclosure is not a control enclosure. It is gasketing and sealing of the control enclosure, when the cover is fastened to the control enclosure, it does not allow dust to enter the control enclosure. Compatible with: Controls: Analog Controls and FMA w/ No Heat, Hot Water Heat & Electric Heat Controls: Pneumatic Controls w/ Electric Heat Pneumatic Controls w/ No Heat or Hot Water Heat Transformer 24V/24V (G) - This 40 VAC transformer takes 24 Volt power and makes it 24 Volts for the controls. Transformer 120V/24V (H) - This 40 VAC transformer takes 120 Volt power and makes it 24 Volts for the controls. Transformer 208V/24V (J) - This 40 VAC transformer takes 208 Volt power and makes it 24 Volts for the controls. Transformer 240V/24V (K) - This 40 VAC transformer takes 240 Volt power and makes it 24 Volts for the controls. Transformer 277V/24V (L) - This 40 VAC transformer takes 277 Volt power and makes it 24 Volts for the controls. Transformers are compatible with Analog and FMA Controls with No Heat, Hot Water Heat. It is not compatible with Pneumatic Controls or any type of controls with Electric Heat. Requires a control enclosure. Hanger Brackets (S) - Metal brackets for mounting the terminal unit in the plenum space using threaded rod. These hanging brackets are mounted at the plant. Hanger brackets are compatible with all options. SD - 14

13 General Notes on How to Specify Notes HEAT (Hot Water) Right Hand, 1 Row (W11) - Right hand one row hot water coil with a Slip and Drive duct connection. Right Hand, 2 Row (W12) - Right hand two row hot water coil with a Slip and Drive duct connection. Right Hand, 3 Row (W13) - Right hand three row hot water coil with a Slip and Drive duct connection. Right Hand, 4 Row (W14) - Right hand four row hot water coil with a Slip and Drive duct connection. Left Hand, 1 Row (W21) - Left hand one row hot water coil with a Slip and Drive duct connection. Left Hand, 2 Row (W22) - Left hand two row hot water coil with a Slip and Drive duct connection. Left Hand, 3 Row (W13) - Left hand three row hot water coil with a Slip and Drive duct connection. Left Hand, 4 Row (W24) - Left hand four row hot water coil with a Slip and Drive duct connection. Heat (Electric) Pneumatic Heater Standard Components - Air flow switch, 80/20 nickel chromium (NiCr) wire, magnetic contactors, high limit (auto reset) switch, manual reset switch, P.E. Switch, and a transformer (50 VAC) that matches the electric heater voltage. Analog/FMA Heater Standard Components - Air flow switch, 80/20 nickel chromium (NiCr) wire, magnetic contactors, high limit (auto reset) switch, manual reset switch, and a transformer (50 VAC) that matches the electric heater voltage. Electric Heater Codes: E Volt, 1 Phase, 1 Step Electric Heater (120/24 transformer) E Volt, 1 Phase, 2 Step Electric Heater (120/24 transformer) E Volt, 1 Phase, 3 Step Electric Heater (120/24 transformer) E Volt, 1 Phase, 1 Step Electric Heater (208/24 transformer) E Volt, 1 Phase, 2 Step Electric Heater (208/24 transformer) E Volt, 1 Phase, 3 Step Electric Heater (208/24 transformer) E Volt, 1 Phase, 1 Step Electric Heater (240/24 transformer) E Volt, 1 Phase, 2 Step Electric Heater (240/24 transformer) E Volt, 1 Phase, 3 Step Electric Heater (240/24 transformer) E Volt, 1 Phase, 1 Step Electric Heater (277/24 transformer) E Volt, 1 Phase, 2 Step Electric Heater (277/24 transformer) E Volt, 1 Phase, 3 Step Electric Heater (277/24 transformer) E Volt, 3 Phase, 1 Step Electric Heater (208/24 transformer) E Volt, 3 Phase, 2 Step Electric Heater (208/24 transformer) E Volt, 3 Phase, 3 Step Electric Heater (208/24 transformer) E Volt, 3 Phase - 4 wire, 1 Step Electric Heater (277/24 transformer) E Volt, 3 Phase - 4 wire, 2 Step Electric Heater (277/24 transformer) E Volt, 3 Phase - 4 wire, 3 Step Electric Heater (277/24 transformer) SCR Heater Codes: C Volt, 1 Phase, SCR Heater (120/24 transformer) C Volt, 1 Phase, SCR Heater (208/24 transformer) C Volt, 1 Phase, SCR Heater (240/24 transformer) C Volt, 1 Phase, SCR Heater (277/24 transformer) C Volt, 3 Phase, SCR Heater (208/24 transformer) C Volt, 3 Phase - 4 wire, SCR Heater (277/24 transformer) SD - 15

14 General Notes on How to Specify Notes KILOWATTS (kw) Kilowatt Range for SDV - Electric Heat: 0.5 to 36.0 (see page SD-9 for individual size kw breakdown) SCR Heat: 0.5 to 24.9 (see page SD-9 for individual size kw breakdown) Kilowatt Range Breakdown for SDV - From 0.5 kw to 10.0 kw, electric heaters are built in 0.5 kw increments. For heaters from 10.0 to 36.0, electric heaters are built in 1.0 kw increments. ELECTRIC HEAT ACCESSORIES Mercury Contactor (B) - Mercury Contactor replaces the standard magnetic contactor. It is compatible with everything. Fusing (C) - Fusing on the high voltage side of the control enclosure acts as a safety in case of a power surge. Electric Heat Accessories: Fused Door Interlocking Disconnect Switch (K) Fused Door Interlocking Disconnect Switch (K) - Fused Door Interlocking Disconnect Switch is a combination of Non-Fused Door Interlocking Disconnect Switch and Fusing. Unit Accessories: Controls Disconnect switch (D) Electric Heat Accessories: Non-Fused Door Interlocking Disconnect Switch (L) Electric Heat Accessories: Fusing (C) Non-Fused Door Interlocking Disconnect Switch (L) - This disconnect switch powers off the electric heat and the controls. SCR HEAT ACCESSORIES Unit Accessories: Controls Disconnect switch (D) Electric Heat Accessories: Fused Door Interlocking Disconnect Switch (K) Fusing (F) - Fusing on the high voltage side of the control enclosure acts as a safety in case of a power surge. Door Interlocking Disconnect Switch (D) - This disconnect switch cuts the power to SCR heat and the controls. Unit Accessories: Controls Disconnect switch (D) Pneumatic Heater (P) - This heater option ships with a transducer that accepts a field piped 3 to 15 psi signal. Unit Accessories: Controls Disconnect switch (D) SD - 16