1. Manuals
  2. Brands
  3. Suntherm Manuals
  4. Air Handlers
  5. AHW1 Series
  6. Installation manual

Suntherm AHW1 Series Installation Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Vertical Wall Mount Installation - Models With DX Cooling and Electric or Hot Water Heat
AHW1 and AHW2 SERIES
1 - General ..........................................................................................................................1
3 - Air Handler Installation ...........................................................................................6
4 - TXV, Flowrator Distributor, and Refrigerant Lines ...................................... 11
5 - Hydronic (Hot Water) Heat .................................................................................. 15
6 - Line Voltage Wiring ................................................................................................ 19
1 - Air Handler Dimensions .........................................................................................4
2 - Clearance - Access for Service .............................................................................6
3 - Closet Clearances .....................................................................................................7
4 - Air Handler Top Dimensions - AHW1 ................................................................8
5 - Air Handler Duct Mounting Flange Dimensions ...........................................8
6 - Air Handler Base Dimensions ..............................................................................8
7 - Typical Wall Mount Installation ...........................................................................8
8 - Wall Mount Panel Door ....................................................................................................9
13 - Wall Panel Door Dimensions .................................................................................. 10
14 - Wall Panel Door Frame Dimensions ..................................................................... 10
15 - Wall Panel Door Frame Depth ............................................................................... 10
16 - Typical 1" Pleated Air Filter ...................................................................................... 10
17 - Refrigerant Lines For Air Handler Below Outdoor Unit ........................................11
18 - TXV Bulb Placement ................................................................................................ 12
19 - TXV Sensing Bulb Location .................................................................................... 13
20 - Typical TXV Connections ........................................................................................ 14
1 - Air Handler Specifications ......................................................................................4
2 - Dimensional Data ......................................................................................................4
3 - Model Number Nomenclature .............................................................................5
4 - Clearances to Combustibles ..................................................................................6
1. Models with electric heat and not heat are rated for 208/240 VAC, 60
Hz, 1-Phase.
2. Models with hydronic heat are rated for 115 VAC, 60 Hz, 1-Phase.
3. Air handler control circuit is rated at 24 VAC, 60 Hz.
4. Air handler size varies by model.
5. Four-wire thermostat operation for heat/cool applications.
MORTEX PRODUCTS INC.
501 TERMINAL RD FORT WORTH, TX 76106
INSTALLATION MANUAL
The following list includes important facts and information regarding this air handler.
LIST OF SECTIONS
7 - Thermostat Wiring and Connections ..............................................................23
8 - Blower Motor Speed Selection ..........................................................................26
9 - Final System Checkout and Start-Up...............................................................26
10 - Blower Performance .............................................................................................28
11 - Wiring Diagrams .....................................................................................................29
LIST OF FIGURES
21 - TXV Installed in Air Handler ........................................................................................ 14
22 - Flowrator Distributor ...................................................................................................... 14
23 - Typical Condensate Trap......................................................................................15
25 - Typical Hot Water Tank Connections.................................................................... 19
28 - Pull-Out Disconnect Location - AHW1 .........................................................20
29 - Component Locations - Electric Heat Control Box ...................................22
31 - Component Locations - Hydronic Heat Control Box .................................. 22
36 - Constant Torque Motor Terminals ....................................................................26
37 - No Electric Heat Wiring Diagram ......................................................................29
38 - 3, 5 & 6 kW Electric Heat Wiring Diagram ......................................................29
39 - 8 & 10 kW Electric Heat Wiring Diagram ........................................................30
40 - Hydronic Heat Wiring Diagram .........................................................................30
LIST OF TABLES
10 - Electric Heater Element Capacities. ................................................................. 21
11 - Wiring Requirements - 115 VAC - Hydronic Heat ...................................... 21
12 - Low Voltage Wire Gauge and Max Lengths. ................................................. 23
18 - Blower Performance - Without Air Filters ..................................................... 28
L
SECTION 1: GENERA
6. Seven wire thermostat operating for heat pump applications.
7. Air handler is designed for both cooling only and heat pump
applications.
8. Air handler is designed for upflow applications only.
9. Air handler must not be operated without the access door installed.
10. Air handler is listed by ETL for the United States and Canada.
SAVE THIS MANUAL FOR FUTURE REFERENCE
Page 1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AHW1 Series and is the answer not in the manual?

Questions and answers

Related Manuals for Suntherm AHW1 Series

Summary of Contents for Suntherm AHW1 Series

  • Page 1: Table Of Contents

    INSTALLATION MANUAL Vertical Wall Mount Installation – Models With DX Cooling and Electric or Hot Water Heat AHW1 and AHW2 SERIES LIST OF SECTIONS 1 – General ..........................1 7 – Thermostat Wiring and Connections ..............23 8 – Blower Motor Speed Selection ................26 2 –...

  • Page 2: Safety, General, Dimensional & Model Number Nomenclature

    NOTE: All applicable codes take precedence over any property damage. recommendation made in these instructions. SunTherm assumes no responsibility for units installed in violation of any code or regulation. 1. Refer to the Figure 5 of this manual for the bottom return air opening dimensions for installations with the return air entering the bottom of the air handler.

  • Page 3: General

    3. These models are not ETL listed or approved for installation into a manufactured (mobile) home. 4. Provide clearances from combustible materials as shown in Table 4: Clearances to Combustibles and Figure 3: Closet Hot water from a boiler used to satisfy heating requirements Clearances.

  • Page 4: Air Handler Dimensions

    Nominal Nominal Max. Cooling Thermostat Cooling Heating External Blower Electric Model Nominal Blower Blower Voltage / PH / Circuit Blower CFM @ Speed Static Motor Heater Tons Code Size Voltage / Speed 0.30 inwc (CFM) @ Duct PH / HZ ESP With 0.30 inwc Pressure...

  • Page 5: Model Number Nomenclature

    AHW Vertical Wall Mounted Air Handler DX Cooling / Electric Heat / Hot Water Air Handler Unit Type AHW - Vertical Wall Mount Series 1 - DX Coil with Electric Heat 2 - DX Coil with Hot Water Heat Nominal Cooling BTUs Example: 24 - 24,000 btu Slant Coil Configuration (Rows, FPI, Rifled/Smooth, Fin Type, Etc.) Confidential...

  • Page 6: Air Handler Installation

    SECTION 3: AIR HANDLER INSTALLATION on all air handlers installed in a non-conditioned space to prevent damage from condensation runoff. The air handler can be installed in a closet, an alcove, a framed 10. It is recommended that air handlers installed in non in wall mount, or in a basement.

  • Page 7: Closet Clearances

    return duct may be used instead of the factory installed internal air filter. NOTE: If a return air filter grille or return air base with an integral filter is utilized, remove the factory internal filter when the air 1" Clearance between the wall 1"...

  • Page 8: Air Handler Top Dimensions - Ahw1

    Figure 4: Air Handler Top Dimensions –AHW1 Figure 6: Air Handler Base Dimensions Figure 5: Air Handler Duct Mounting Flange Height Figure 7: Typical Wall Mount Installation MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 8...

  • Page 9: Wall Mount Panel Door

    Figure 8: Wall Panel Door Figure 10: Wall Mount Installation With Wall Panel Door - AHW2 Figure 11: Side View For Typical Wall Mount Figure 9: Wall Mount Installation With Wall Panel Door - AHW1 Installation With Wall Panel Door - AHW1 MORTEX PRODUCTS INC.

  • Page 10: Side View For Typical Wall Mount Installation W/ Wall Panel Door - Ahw2 10 13 - Wall Panel Door Dimensions

    Figure 12: Side View For Typical Wall Mount Figure 14: Wall Panel Frame Dimensions Installation With Wall Panel Door - AHW2 Figure 15: Wall Panel Door Frame Depth Figure 13: Wall Panel Door Dimensions Figure 16: Typical 1” Pleated Air Filter MORTEX PRODUCTS INC.

  • Page 11: Txv, Flowrator Distributor, And Refrigerant Lines

    SECTION 4: TXV, FLOWRATOR DISTRIBUTOR, AND REFRIGERANT LINES DX Refrigerant Piping: CONDENSING UNIT Air handlers with DX type indoor coils require liquid and suction lines sized in accordance with outdoor unit manufacturer’s instructions. The refrigerant lines enter the air handler through the slot located on the left side of the air handler top behind the EVAPORATOR COIL electrical power entrance and connect to the suction and liquid...

  • Page 12: Txv Bulb Placement

    refrigeration or air conditioning system. Liquid refrigerant enters the TXV under high pressure, but the pressure is reduced when the flow of the refrigerant is restricted by an internal moving pin and port. It is important to remember that the TXV only controls the level of superheat of the refrigerant in the suction line.

  • Page 13: Txv Sensing Bulb Location

    4. TXV sensing bulb installed on bottom of suction line 5. Restricted or capped TXV external equalizer tube 6. Improper TXV external equalizer location (must be located on suction manifold after the last feeder tube) 7. Low refrigerant charge 8. Plugged liquid line filter dryer 9.

  • Page 14: Typical Txv Connections

    9. Install the TXV bulb to the suction line using the two bulb SPECIAL INSTRUCTIONS FOR COILS WITH clamps furnished with kit. FLOWRATOR DISTRIBUTOR ASSEMBLIES a. The sensing bulb should be installed on a horizontal run of The sizing of the orifice piston should be based on the rated the suction line if possible and should be positioned capacity of the outdoor unit and air handler match-up.

  • Page 15: Hydronic (Hot Water) Heat

    CONDENSATE DRAIN PIPING: Air handler and water heater must be located indoors and not The air handler coil drain pan has one ¾” NPT female connection subject to freezing temperatures. and one ¾” NPT female secondary connection located in the Total hot water piping should not exceed 140 feet.

  • Page 16: Ahw2-18, 24-2N And Ahw2-18, 24-3N Hot Water Capacities

    Per form an ce Dat a - Hot Water Sl ab Coil s HEATING PERFORMANCE DATA: HOT WATER HOT WATER CAPACITIES @ PRESS. PRESS. WALL MOUNT 70°F ENTERING AIR TEMPERATURE DROP DROP MODEL NO. ENTERING WATER TEMPERATURE WATER 100°F 110°F 120°F 130°F 140°F...

  • Page 17: Ahw2-18, 24-4N And Ahw2-30, 36-2N Hot Water Capacities

    Pe r fo rm ance D ata - Hot Water Sla b Coi ls HEATING PERFORMANCE DATA: HOT WATER HOT WATER CAPACITIES @ PRESS. PRESS. WALL MOUNT 70°F ENTERING AIR TEMPERATURE DROP DROP MODEL NO. ENTERING WATER TEMPERATURE WATER 100°F 110°F 120°F 130°F...

  • Page 18: Ahw2-30, 36-3N And Ahw2-30, 36-4N Hot Water Capacities

    Pe r fo rm ance D ata - Hot Water Sla b Coi ls HEATING PERFORMANCE DATA: HOT WATER HOT WATER CAPACITIES @ PRESS. PRESS. WALL MOUNT 70°F ENTERING AIR TEMPERATURE DROP DROP MODEL NO. ENTERING WATER TEMPERATURE WATER (FT-WTR) (IN-WC) 100°F 110°F...

  • Page 19: Line Voltage Wiring

    Figure 24: Typical Hot Water Tank and Refrigerant Figure 25: Typical Hot Water Tank Connections Line Connections SECTION 6: LINE VOLTAGE WIRING Power Supply Wiring IMPORTANT - All installation on field wiring must be rated at 60ºC The air handler internal wiring is complete except for the power or higher.

  • Page 20: Wiring Requirements - 208/240 Vac - No Electric Heat

    Figure 28: Pull-Out Disconnect Location - AHW1 Figure 27: Line Voltage Wire Knockout and Thermo- stat Wire Entrance Locations - AHW2 AIR HANDLER MODELS AHW1 AHW1 AHW1 Indoor Blower Type Constant Torque AHW1 Constant Torque AHW1 Constant Torque Indoor Blower Motor Code Indoor Blower HP Indoor Blower Size 10 x 7T...

  • Page 21: Wire Requirements - 208/240 Vac Electric Ht - 1 Branch Circuit

    AIR HANDLER MODELS AHW1 AHW1 AHW1 3 kW Heater Amps - 208/240 VAC 10.8/12.5 10.8/12.5 10.8/12.5 5 kW Heater Amps - 208/240 VAC 18.0/20.8 18.0/20.8 18.0/20.8 6 kW Heater Amps - 208/240 VAC 21.6/25.0 21.6/25.0 21.6/25.0 8 kW Heater Amps - 208/240 VAC 28.8/33.3 28.8/33.3 28.8/33.3...

  • Page 22: Component Locations - Electric Heat Control Box

    Figure 29: Component Locations – Electric Heat Control Box Figure 30: Component Locations – No Electric Heat Control Box Figure 31: Component Locations – Hydronic Heat Control Box MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 22...

  • Page 23: Thermostat Wiring And Connections

    SECTION 7: THERMOSTAT WIRING AND CONNECTIONS Thermostat Wiring IMPORTANT: Cycle the air handler and outdoor unit separately to Thermostat wires enter the air handler through a ½” diameter make sure both operate correctly. hole located on the right front corner of air handler top. A cable Thermostat Heat Anticipator connector (strain relief ) must be installed to hold wiring in Some thermostats have a heat anticipator setting that must be...

  • Page 24: Heat/Cool Low Voltage Wiring Connections - Single Tfmr

    Figure 32: Typical Heat/Cool Wiring Connections – Figure 34: Typical Heat Pump Low Voltage Wiring Single Transformer Connections – Single Transformer Figure 33: Typical Heat/Cool Low Voltage Wiring Figure 35: Typical Heat Pump Low Voltage Wiring Connections – Separate Transformers in Air Handler Connections –...

  • Page 25: Typical Heat/Cool T-Stat Wire Color Codes & Connections

    Letter Thermostat Code Connection Wire Color Description 24 VAC RED / R WHITE Heat (1stStage Heat) WHT / W W or W1 GREEN Indoor Fan GRN / G YELLOW Cooling YEL / Y Y or Y1 BROWN 24 VAC Common BRN / C Table 14: Typical Heat / Cool Thermostat Wire Color Codes and Connections Letter...

  • Page 26: Blower Motor Speed Selection

    pigtail wire and the 24 VAC common wire (typically BROWN) TERMINAL CONNECTION from the outdoor unit compressor contactor coil with a wire Speed Tap Common - 24 VAC Common nut. For models with a LVTB, also connect the 24VAC common wire from the outdoor unit compressor contactor coil common Supply Voltage - 115 VAC to the “C”...
  • Page 27 and adjust the set point below the room temperature to enable the cooling mode. 10. Check for proper cooling operation per the outdoor unit installation and operating instructions. 11. No Heat Models Only: Set the thermostat to the desired operating mode and adjust the temperature setting for comfort conditions.

  • Page 28: Blower Performance

    SECTION 10: BLOWER PERFORMANCE Cabinet Size Blower Motor Blower Motor Evap. Motor CFM @ External Pressure In-WC (Watts/1000cfm) Housing Code Volts CoilFHxFL 0.10 0.20 0.30 0.40 0.50 {198} {213} {231} {266} {293} [185] [192] [195] [208] [212] {176} {196} {226} {236} {259} [158]...

  • Page 29: Wiring Diagrams

    SECTION 11: WIRING DIAGRAMS Figure 37: No Electric Heat Wiring Diagram Figure 38: 3 kW, 5 kW and 6 kW Electric Heat Wiring Diagram MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 29...

  • Page 30: 10 Kw Electric Heat Wiring Diagram

    Figure 39: 8 kW and 10 kW Electric Heat Wiring Diagram Figure 40: Hydronic Heat Wiring Diagram Subject to change without notice 61BA0075D Copyright by Mortex Products Inc. 2023 Supersedes: 61BA0075C MORTEX PRODUCTS INC. 501 TERMINAL RD FORT WORTH, TX 76106 Page 30...

This manual is also suitable for:

Ahw2 seriesAhw 2-18-2n liAhw 2-24-2n liAhw 2-18-3n liAhw 2-24-3n liAhw 2-18-4n li ... Show all

Table of Contents