ACCESSORY KIT INSTALLATION INSTRUCTIONS

Transcription

1 ACCESSORY KIT INSTALLATION INSTRUCTIONS HOT WATER AND STEAM COIL ACCESSORIES MODELS 1HW0410, 0411, 0412 and 1NF0456, 0457, 0458 For 7.5 Thru Ton Generation 2 Split System Indoor Units UAI-A-0910 Z TABLE 1: HOT WATER COIL ACCESSORY REFERENCE INFORMATION HOT WATER COIL INDOOR UNIT MODEL ACCESSORY MODEL UNIT CAPACITY 1HW0410 NC090, 1, NH-07,-10, J07, 10NC ND1, NJ-10, J10ND TON 1HW0411 NC180, NH-15, J15NC ND180, NJ-15, J15ND 15 TON 1HW0412 NC2, NH-, JNC ND2, NJ-, JND TON TABLE 2: STEAM COIL ACCESSORY REFERENCE INFORMATION STEAM COIL INDOOR UNIT MODEL ACCESSORY MODEL UNIT CAPACITY 1NF0456 NC090, 1, NH-07,-10, J07, 10NC ND1, NJ-10, J10ND TON 1NF0457 NC180, NH-15, J15NC ND180, NJ-15, J15ND 15 TON 1NF0458 NC2, NH-, JNC ND2, NJ-, JND TON GENERAL The modular design of these heating coil accessories allows quick, easy installation between the DX coil and blower sections of the indoor unit models listed. Finished to match the unit exterior, these accessories may be installed in either a horizontal or vertical configuration (Refer to Figures 3 and 4). Coils are removable; allowing for easy cleaning and/or repairs. Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes are intended to clarify or make the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury and/or equipment damage may result if installation procedure is not handled properly. INSTALLATION Indoor Unit Preparation: 1. Disconnect power (if any) to unit control box. 2. Disconnect wires from evaporator solenoid valve (Single system NC/NH /J**NC, 10, 15 and ton models only). 3. Remove four (4) bolts, washers and lock washers connecting blower section to DX coil section (See Figures 1 and 2). Keep hardware for Step Separate blower section and DX coil section. Accessory Installation: 5. Remove four (4) bolts, washers and lock washers from nutserts in heating coil accessory and set aside for Step Set heating coil accessory either on top of (vertical configuration) or next to (horizontal configuration) evaporator section. (See Figures 3 and 4). 7. Using hardware from Step 3, attach heating coil accessory to DX coil section. 8. Using hardware from Step 5, attach blower section to heating coil accessory. 9. Reattach solenoid wires from Step 2. Pass wires through bushing found in header baffle underneath heating coil headers. Wires MUST be routed behind headers to prevent having to disconnect them for heating coil removal. Use wire nuts provided. 10. Connect piping to the supply and return connections of the coil. Johnson Controls Unitary Products

2 11. Continue installation of unit according to unit Installation Instructions. 12. Connect Power removed in Step 1. MAINTENANCE The coil may be removed from the front (top) side of the casing (See Figures 5 and 6) using the following steps: Coil Removal: 1. Disconnect all piping. Hot water coils must NOT be used with steam under any circumstances. 2. Remove the front panel. 3. Remove the four screws attaching the two (2) coil brackets to the frame. 4. Slide the coil out through the opening. Steam pressure must be limited to 25 psig. If available steam pressure is greater than 25 psig, a pressure regulating valve must be installed and set for this maximum pressure. 2 Johnson Controls Unitary Products

3 FROM INSIDE OF BLOWER SECTION. TYPICAL BOTH ENDS SHOWN WITH BLOWER & DX COIL SECTION END PANELS REMOVED FIGURE 1 - VERTICAL UNIT DISASSEMBLY FROM INSIDE OF BLOWER SECTION. TYPICAL BOTH ENDS SHOWN WITH BLOWER & DX COIL SECTION END PANELS REMOVED FIGURE 2 - HORIZONTAL UNIT DISASSEMBLY Johnson Controls Unitary Products 3

4 FROM INSIDE OF BLOWER SECTION. (TYPICAL BOTH ENDS) FROM INSIDE OF COIL ASSY CABINET. (TYPICAL BOTH ENDS) BUSHING HEADER BAFFLE SHOWN WITH BLOWER & DX COIL END PANELS REMOVED FIGURE 3 - VERTICAL HEATER COIL ASSEMBLY 4 Johnson Controls Unitary Products

5 FROM INSIDE OF BLOWER SECTION. (TYPICAL BOTH ENDS) FIGURE 4 - HORIZONTAL HEATING COIL ASSEMBLY FROM INSIDE OF COIL ASSY CABINET. (TYPICAL BOTH ENDS) HEADER BAFFLE BUSHING SHOWN WITH BLOWER & DX COIL END PANELS REMOVED HEATING COIL COIL BRACKET (X2) FRONT PANEL FIGURE 5 - VERTICAL COIL REMOVAL FOR CLEANING Johnson Controls Unitary Products 5

6 COIL BRACKET (X2) FRONT PANEL HEATING COIL HEADER BAFFLE BUSHING FIGURE 6 - HORIZONTAL COIL REMOVAL FOR CLEANING 6 Johnson Controls Unitary Products

7 C B G F A E D FIGURE 7 - HEATING COIL ACCESSORY DIMENSIONS Table 3: DIMENSIONS HEATING COILS. CABINET DESCRIPTION Hot Water Kit No. Steam Kit No. 1HW0410 1HW0411 1HW0412 1NF0456 1NF0457 1NF0458 A B C D E F G Johnson Controls Unitary Products 7

8 Table 4: PHYSICAL DATA HEATING COILS. DESCRIPTION Hot Water Kit No. Steam Kit No. 1HW0410 1HW0411 1HW0412 1NF0456 1NF0457 1NF0458 Weight (Shipping) CABINET Weight (Dry) Weight (Operating) Length COIL Height Face area (Sq. Ft.) Casing Galvanized Steel Galvanized Steel Tubes 1/2" OD Copper 1" OD Copper MATERIALS Fins 0.006" Aluminum " Aluminum Connection, Supply Red Brass 1-1/2" MPT Red Brass 1-1/2" MPT Connection, Return Red Brass 1-1/2" MPT Red Brass 1-1/2" MPT Rows 2 1 CONSTRUCTION Fins per inch Drains and Vents (3 each) 1/8" - 8 Johnson Controls Unitary Products

9 Table 5: HEATING WATER COIL PERFORMANCE Kit No. 1HW0410 1HW0411 1HW0412 Unit Model No. NC090, NH-07, J07NC, NC1, NH-10, J10NC, ND1, NJ-10, J10ND NC180, NH-15, J15NC, ND180, HJ-15, J15ND NC2, NH-, JNC, ND2, HJ-, JND Airflow (CFM) Entering Air Temp. ( F) Air Pressure Drop (IWG) 1. Capacities do not include blower motor heat added to system. 2. Multiply capacity by correction factor for capacity at other entering water temperatures. 3. Multiply desired capacity by GPM multiplier to determine required water flow rate (GPM). Entering Water Temp ( F) 180 Water Temp Drop ( F) 30 GPM MBH 1 LAT GPM MBH 1 LAT GPM MBH 1 LAT Table 6: CAPACITY CORRECTION FACTORS 2 Table 7: GPM MULTIPLIERS 3 Entering Air Temp. ( F) Entering Water Temp ( F) Water Temp Drop ( F) Entering Water Temp ( F) Water Temp Drop ( F) Johnson Controls Unitary Products 9

10 Table 8: STEAM COIL PERFORMANCE Kit No. 1NF0456 1NF0457 1NF0458 Unit Model No. NC090, NH-07, J07NC, NC1, NH-10, J10NC, ND1, NJ-10, J10ND NC180, NH-15, J15NC, ND180, NJ-15, J15ND NC2, NH-, JNC, ND2, NJ-, JND Airflow (CFM) Table 9: Condensate Multipliers 2 Entering Steam Pressure (PSI) Entering Air Temp. Air Pressure Drop ( F) (IWG) MBH 1 LAT MBH 1 LAT MBH 1 LAT Capacities do not include blower motor heat added to system. 2. Multiply desired capacity by condensate multiplier for condensate rate (lb/hr). Steam Pressure, psig Condensate, lb/hr Subject to change without notice. Printed in U.S.A UAI-A-0910 Copyright 10 by Johnson Controls, Inc. All rights reserved. Supersedes: Nothing Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069