Johnson Controls (H,Y)VAHP072B31S Installation And Maintenance Manual
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Johnson Controls (H,Y)VAHP072B31S Installation And Maintenance Manual

Johnson Controls (H,Y)VAHP072B31S Installation And Maintenance Manual

Inverter-driven multi-split system heat pump air conditioners
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Installation
and
Maintenance
Manual
INVERTER-DRIVEN
MULTI-SPLIT SYSTEM
HEAT PUMP
AIR CONDITIONERS
Models:
Outdoor Units;
<208/230V >
Standard Type
(H,Y)VAH(P,R)072B31S, (H,Y)VAH(P,R)096B31S,
(H,Y)VAH(P,R)120B31S, (H,Y)VAH(P,R)144B31S,
(H,Y)VAH(P,R)168B31S, (H,Y)VAH(P,R)192B31S,
(H,Y)VAH(P,R)216B31S, (H,Y)VAH(P,R)240B31S,
(H,Y)VAH(P,R)264B31S, (H,Y)VAH(P,R)288B31S,
(H,Y)VAH(P,R)312B31S, (H,Y)VAH(P,R)336B31S,
(H,Y)VAH(P,R)360B31S
Less Module Type
(H,Y)VAH(P,R)240B31LM, (H,Y)VAH(P,R)336B31LM,
(H,Y)VAH(P,R)360B31LM
< 460V >
Standard Type
(H,Y)VAH(P,R)072B41S, (H,Y)VAH(P,R)096B41S,
(H,Y)VAH(P,R)120B41S, (H,Y)VAH(P,R)144B41S,
(H,Y)VAH(P,R)168B41S, (H,Y)VAH(P,R)192B41S,
(H,Y)VAH(P,R)216B41S, (H,Y)VAH(P,R)240B41S,
(H,Y)VAH(P,R)264B41S, (H,Y)VAH(P,R)288B41S,
(H,Y)VAH(P,R)312B41S, (H,Y)VAH(P,R)336B41S,
(H,Y)VAH(P,R)360B41S
Less Module Type
(H,Y)VAH(P,R)240B41LM, (H,Y)VAH(P,R)336B41LM,
(H,Y)VAH(P,R)360B41LM
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS HEAT PUMP
AIR CONDITIONER.
KEEP THIS MANUAL FOR
FUTURE REFERENCE.
P00796Q

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Summary of Contents for Johnson Controls (H,Y)VAHP072B31S

  • Page 1 Installation Maintenance Manual INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS Models: Outdoor Units; <208/230V > Standard Type (H,Y)VAH(P,R)072B31S, (H,Y)VAH(P,R)096B31S, (H,Y)VAH(P,R)120B31S, (H,Y)VAH(P,R)144B31S, (H,Y)VAH(P,R)168B31S, (H,Y)VAH(P,R)192B31S, (H,Y)VAH(P,R)216B31S, (H,Y)VAH(P,R)240B31S, (H,Y)VAH(P,R)264B31S, (H,Y)VAH(P,R)288B31S, (H,Y)VAH(P,R)312B31S, (H,Y)VAH(P,R)336B31S, (H,Y)VAH(P,R)360B31S Less Module Type (H,Y)VAH(P,R)240B31LM, (H,Y)VAH(P,R)336B31LM, (H,Y)VAH(P,R)360B31LM < 460V > Standard Type (H,Y)VAH(P,R)072B41S, (H,Y)VAH(P,R)096B41S, (H,Y)VAH(P,R)120B41S, (H,Y)VAH(P,R)144B41S, (H,Y)VAH(P,R)168B41S, (H,Y)VAH(P,R)192B41S,...
  • Page 3 Important Notice Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 4 4. Please contact your local agent or contractor as any issues involving installation, performance, or performed by a customer without the written consent of Johnson Controls, Inc. Performing any mechanical alterations on this product without the consent of the manufacturer will render your warranty null and void.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS 1. Introduction ................................1 2. Important Safety Instructions ..........................1 3. Before Installation ..............................6 3.1 Factory-Supplied Accessories ........................6 3.2 Necessary Tools and Instrument List for Installation ..................7 3.3 Flaring and Joint ............................9 3.4 Line-Up of Outdoor Units ..........................11 3.4.1 Heat Pump System ..........................11 3.4.2...

  • Page 7: Introduction

    If these devices are improperly adjusted or tampered with in any way, a serious accident can occur. Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps prohibited as they…...
  • Page 8 Take the following precautions to reduce the risk of property damage. Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. Do not install this unit in any place where silicon gases can coalesce. If the silicon gas molecules could run inside of the electrical box, possibly causing electrical failures.
  • Page 9 Controls uses only refrigerants that have been approved for use in the unit’s intended home country or market. Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved for use in the countries or markets they serve. The refrigerant used in this unit this unit must comply with the country’s requirements with regard to refrigerant use and should be...
  • Page 10 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 11 Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit Clamp electrical wires securely with a cable clamp after all wiring is connected to the terminal block. In addition, run wires securely through the wiring access channel. When installing the power lines, do not apply tension to the cables.

  • Page 12: Before Installation

    3. Before Installation Factory-Supplied Accessories Check to ensure that the following accessories are packed with the outdoor unit. inch (mm) Accessory 72 Type 96 Type 120 Type Remarks Connection for Only for Refrigerant Gas Heat Recovery System (High/Low) Pipe 1 (25.4) 7/8 (22.2) 1 (25.4) 7/8 (22.2) Connection for * Low for...

  • Page 13: Necessary Tools And Instrument List For Installation

    Necessary Tools and Instrument List for Installation Tool Tool Tool Handsaw Pliers Wire Cutters Phillips Screwdriver Pipe Cutter Gas Leak Detector Vacuum Pump Brazing Kit Level Refrigerant Gas Hose Hexagon Wrench Clamper for Solderless Terminals Megohmmeter Wrench Hoist (for Indoor Unit) Copper Pipe Bender Scale Ammeter...
  • Page 14 : Interchangeability is available with current R22 : Only for Refrigerant R410A (No Interchangeability with R22) : Prohibited : Only for Refrigerant R407C (No Interchangeability with R22) Interchangeability Reason of Non-Interchangeability and Attention with R22 Measuring Instrument and Tool ( : Strictly Required) R410A R407C Pipe Cutter,...

  • Page 15: Flaring And Joint

    Flaring and Joint Flaring Dimension inch (mm) Diameter -0.02 (-0.4) R410A 1/4 (6.35) 0.36 (9.1) 3/8 (9.52) 0.52 (13.2) 1/64 ~ 1/32R 1/2 (12.7) 0.65 (16.6) 5/8 (15.88) 0.78 (19.7) with hard temper pipe. 3/4 (19.05) Joint Selection the table below. <...
  • Page 16 Processing at Brazing Connection To prevent gas leakage at the brazing connection, refer to the table for the insertion depth and the gap for joint pipe. inch (mm) Diameter Min. Insertion Depth (A - D) 3/16 < D < 5/16 1/4 (6) (5 <...

  • Page 17: Line-Up Of Outdoor Units

    Line-Up of Outdoor Units (1) This outdoor unit series can build the capacity of 72 to 360 MBH by combining the outdoor units of 72 to 120 MBH. The outdoor unit can be used as either heat pump system or heat recovery system. (2) The outdoor unit of 144 to 360 MBH consists of the combination of two to four base units.
  • Page 18 < 460V > Base Unit Capacity (MBH) Model (H,Y)VAHP072B41S (H,Y)VAHP096B41S (H,Y)VAHP120B41S Combination of Base Units Capacity (MBH) Model (H,Y)VAHP144B41S (H,Y)VAHP168B41S (H,Y)VAHP192B41S (H,Y)VAHP216B41S (H,Y)VAHP072B41S (H,Y)VAHP096B41S (H,Y)VAHP096B41S (H,Y)VAHP072B41S Combination (H,Y)VAHP072B41S (H,Y)VAHP072B41S (H,Y)VAHP096B41S (H,Y)VAHP072B41S (H,Y)VAHP072B41S Capacity (MBH) Model (H,Y)VAHP240B41S (H,Y)VAHP264B41S (H,Y)VAHP288B41S (H,Y)VAHP312B41S (H,Y)VAHP096B41S (H,Y)VAHP120B41S (H,Y)VAHP120B41S (H,Y)VAHP120B41S...

  • Page 19: Heat Recovery System

    3.4.2 Heat Recovery System < 208/230V > Base Unit Capacity (MBH) Model (H,Y)VAHR072B31S (H,Y)VAHR096B31S (H,Y)VAHR120B31S Combination of Base Units Capacity (MBH) Model (H,Y)VAHR144B31S (H,Y)VAHR168B31S (H,Y)VAHR192B31S (H,Y)VAHR216B31S (H,Y)VAHR072B31S (H,Y)VAHR096B31S (H,Y)VAHR096B31S (H,Y)VAHR072B31S Combination (H,Y)VAHR072B31S (H,Y)VAHR072B31S (H,Y)VAHR096B31S (H,Y)VAHR072B31S (H,Y)VAHR072B31S Capacity (MBH) Model (H,Y)VAHR240B31S (H,Y)VAHR264B31S (H,Y)VAHR288B31S (H,Y)VAHR312B31S...
  • Page 20 < 460V > Base Unit Capacity (MBH) Model (H,Y)VAHR072B41S (H,Y)VAHR096B41S (H,Y)VAHR120B41S Combination of Base Units Capacity (MBH) Model (H,Y)VAHR144B41S (H,Y)VAHR168B41S (H,Y)VAHR192B41S (H,Y)VAHR216B41S (H,Y)VAHR072B41S (H,Y)VAHR096B41S (H,Y)VAHR096B41S (H,Y)VAHR072B41S Combination (H,Y)VAHR072B41S (H,Y)VAHR072B41S (H,Y)VAHR096B41S (H,Y)VAHR072B41S (H,Y)VAHR072B41S Capacity (MBH) Model (H,Y)VAHR240B41S (H,Y)VAHR264B41S (H,Y)VAHR288B41S (H,Y)VAHR312B41S (H,Y)VAHR096B41S (H,Y)VAHR120B41S (H,Y)VAHR120B41S (H,Y)VAHR120B41S...

  • Page 21: Combinations Of Indoor Units And Outdoor Units

    Combinations of Indoor Units and Outdoor Units Table 3.1 Indoor Unit Type List Capacity (MBH) Indoor Unit Type Ducted (High Static) (H,Y)IDH_B21S Ducted Ducted (Medium Static) (H,Y)IDM_B21S Ducted (Slim) (H,Y)IDS_B21S Ceiling-Mounted 4-Way Cassette (H,Y)IC4_B21S Ceiling-Mounted 4-Way Cassette Mini (H,Y)ICM_B21S Ceiling-Mounted 1-Way Cassette (H,Y)IC1_B21S Non- Wall-Mounted...
  • Page 22 Comply with the following conditions when installing the unit. - A maximum and minimum total capacity against the nominal outdoor unit capacity can be obtained through combination of indoor units. Table 3.2 System Combination Connectable Indoor Unit Outdoor Unit Minimum Capacity at Recommended Maximum Number Capacity Ratio...

  • Page 23: Caution About Outdoor Unit Installation

    Caution about Outdoor Unit Installation When the installation and piping work for the multiple outdoor units are performed, it is required that the arrangement for outdoor units and piping length be determined. Perform the installation work in strict accordance with the following restrictions. NOTICE of the outdoor unit.

  • Page 24: Piping Work Between Outdoor Units

    Piping Work between Outdoor Units When installing a combination unit, a piping connection kit is needed for each additional unit but not for the base unit: (72, 96, 120 types). Applicable Outdoor Unit Piping Outdoor Unit Operation Type Model Remarks Outdoor Unit Capacity Number...

  • Page 25: Outdoor Unit Installation

    4. Outdoor Unit Installation Installation Location and Precautions To reduce the risk of serious injury or death, the following installation precautions must be followed. When installing the unit into… A wall: Make sure the wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

  • Page 26: Service Space

    Service Space Additionally, adequate clearance is required for service maintenance access. (Unit: inch) Min. 59-1/16 Front Rear Side Side 19-11/16 30-1/8 Min. 19-11/16 + h2/2 Min. 11-13/16 + h1/2 < Side View > - If there are no walls on the front and rear sides, clearance for service access is required as follows: * Front Side: Minimum 19-11/16 inch (500mm) * Rear Side: Minimum 11-13/16 inch (300mm) * Right and Left Sides: Minimum 13/32 inch (10mm)
  • Page 27 1) Walls on Two Sides If units are installed adjacent to tall buildings where there are two open sides, the minimum rear side clearance must be at least 11-13/16 inch (300mm). • Single Installation • Multiple / Serial Installation (Unit: inch) No limit for No limit for No limit for...
  • Page 28 3) Walls on Four Sides • Single Installation (Unit: inch) No limit for side wall height. Min. 11-13/16 + h1/2 Min. 7-7/8 Min. 7-7/8 ▼ No limit for side wall height. Min. 31-1/2 Front Side Open Min. 19-11/16 + h2/2 <Top View>...

  • Page 29: Transportation And Installation Work

    5. Transportation and Installation Work Transportation Transport the product as close to the installation location as practical before unpacking. When using a crane, hang the unit according to the description of the outdoor unit packing. Sling Belt Position CORRECT INCORRECT Sling Belt Sling Belt Square Hole...
  • Page 30 Take special care when hanging or moving the outdoor unit because its center of mass is off-center and unbalanced. See the diagram below. Center of Gravity inch (mm) Voltage Model Type Type Center of Gravity 37-7/8 18-1/2 26-25/32 13-3/8 68-1/8 (962) (470) (680)

  • Page 31: Handling Of Outdoor Unit

    When using a forklift, do not insert forks into Do not apply excessive force to the squared the slots at the unit side panels. The unit can slots with forks or other materials. The bottom sustain damage. of the unit can become deformed. * Do not push the bottom base with forks.

  • Page 32: Installation Work

    Installation Work 5.3.1 Concrete Foundations (1) The height of the foundation should be more than 5-29/32 inch (150mm) above the ground. (2) Provide adequate drainage around the foundation. Details of Installing Anchor Bolt (Unit: inch) Min. 3-5/32 Anchor Bolt (M12) (Field-Supplied) Nut (Field-Supplied) 3/16 2-3/4...
  • Page 33 mats. Refer to Figure 5.3 for the location of holes for anchor bolts. < 72 Type > < 96 and 120 Type > (Unit: inch) (Unit: inch) 27-3/32 37-5/16 (Pitch for Anchor Bolts) (Pitch for Anchor Bolts) 5-13/32 5-13/32 5-13/32 5-13/32 18-21/32 13-17/32...

  • Page 34: Condensate Treatment

    5.3.2 Condensate Treatment Condensation is discharged during heating and defrosting operations. (Rain water is also discharged.) Comply with the following conditions. (1) Choose a place where good drainage is available, or provide a drainage ditch. (2) Do not install the unit over walkways. Condensation can spill onto people. If installing the unit in such a place, utilize the additional condensation drainage pan.

  • Page 35: Refrigerant Piping Work

    6. Refrigerant Piping Work 1.4 times higher than that of the refrigerant R22. That means that the refrigerant piping for R410A refrigerant piping may rupture due to an excessive refrigerant pressure. Pay close attention to the piping thickness when using copper refrigerant piping. The thickness of copper refrigerant piping differs depending on its material.

  • Page 36: Piping Materials

    Piping Materials (1) Obtain locally-supplied copper pipes. (2) Use the copper pipe for refrigerant piping. (3) Pay close attention to pipe thickness. (4) Use clean copper pipes. Make sure there is no dust or moisture inside the pipes. Blow nitrogen or dry, compressed air into the pipes to remove any dust or foreign materials before connecting them.
  • Page 37 connections to the system. are leak free upon completion of the work. NOTE: Apply Refrigerant Oil. [Ethereal Oil: FVC68D (Idemitsu Kousan Co. Ltd.)] Apply a small amount of oil to the backside of the flare. < Required Tightening Torque > Pipe Size Tightening Torque 1/4 inch (6.35 mm)
  • Page 38 [ Example for Pipe Support ] Outdoor Unit Treatment for Section Installing Parts for Piping: Install at Appropriate Intervals of Fire Prevention Multi-Kit Install Horizontally Indoor Unit [ Secure for Liquid Piping, Low Pressure Gas Piping, and High/Low Pressure Gas Piping ] Low Pressure Installing Part for Piping Gas Piping...
  • Page 39 Table 6.1 Piping Size of Outdoor Unit < For Heat Pump System (2 Pipes) > Outdoor Unit Capacity High/Low Pressure Gas Liquid (MBH) 72 - 120 1-1/8 (28.58) 1/2 (12.7) 1-1/8 (28.58) 5/8 (15.88) 168 - 216 1-3/8 (34.93) 3/4 (19.05) 240 - 360 1-5/8 (41.28) 3/4 (19.05)

  • Page 40: Piping Connection Work

    Piping Connection Work Comply with the restrictions for refrigerant piping (permissible length, height difference) in Sections 6.5.1 and 6.5.2 “Piping Work Conditions” and “Piping Branch Restriction”. If not, the outdoor unit can become damaged or fail. The stop valves will be closed completely (factory-setting) when refrigerant piping connections are performed. Do not open these stop valves until all the refrigerant piping connections, airtight testing, and vacuuming have been completed.

  • Page 41: Piping Connection Method

    < Liquid Valve > Do not put wrenches here. refrigerant leakage may occur from the spindle part. (To prevent leakage, place two wrenches at the positions as shown at right when removing and connecting piping. Flare Nut Position both Model Type Tightening Torque Flare Nut wrenches here.
  • Page 42 Refer to Figure 6.2 for the position for piping connections. Unit: inch (mm) A Refrigerant Gas Piping Connection (Low Pressure) Only for Heat Recovery System B Refrigerant Gas Piping Connection (High/Low Pressure) C Refrigerant Liquid Piping Connection Piping Cover 3-15/32 (88) Square Holes at D Refrigerant Gas Piping Connection 5-23/32 (145)
  • Page 43 < Heat Pump System > 72 Type 96 Type Stop Valve Stop Valve Stop Valve (High/Low Pressure Gas) (High/Low Pressure Gas) Stop Valve (Low Pressure Gas) Stop Valve (Liquid) (Low Pressure Gas) Stop Valve (Liquid) Flaring Flaring Liquid Pipe Accessory Pipe (C) (Field-Supplied) Elbow B Liquid Pipe...

  • Page 44: Piping Work Between Outdoor Units

    Piping Work between Outdoor Units Select the pipe size according to Section 6.4 “Piping Size between Outdoor Units”. For refrigerant piping between multiple outdoor units, use the optional piping connection kit. The arrangement for outdoor units should be determined depending on the piping direction when the refrigerant piping work and installation work are planned.
  • Page 45 (3) When piping length between outdoor units is 6.6 ft (2m) or more, an oil trap for the gas piping should be installed so that any accumulation of refrigerant oil cannot occur. Oil Trap Oil Trap Min. 7-7/8 inch Min. 7-7/8 inch Indoor Unit Side Indoor Unit Side Less than 6.6 ft...
  • Page 46 system (four units combination). Gas Line Ref. Piping Connection (Low Pressure) Regarding the piping work for Combination Unit, refer to the (Only for Heat Recovery System) “Installation and Maintenance Manual” attached to the piping Gas Line Ref. Piping connection kit. Connection (High/Low Pressure) Liquid Line Ref.

  • Page 47: Piping Size Between Outdoor Units

    Piping Size between Outdoor Units 6.4.1 Heat Pump System Base Unit Outdoor Unit Refrigerant Piping To Indoor Units inch (mm) Standard Type Model Type High/Low 1-1/8 (28.58) 1-1/8 (28.58) 1-1/8 (28.58) Pressure Gas Piping Size Liquid 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) Two Units Combination <...
  • Page 48 Three Units Combination < Figure for 240, 264 Type > (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Piping Piping Piping Piping To Indoor Units...
  • Page 49 Four Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Outdoor Unit D Outdoor Unit D Piping Piping Connection Kit 2 Connection Kit 2 Piping Piping...
  • Page 50 Two Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit B Outdoor Unit A To Indoor Units Piping Connection Kit Piping Connection Kit To Indoor Units inch (mm) Less Module Type Model Type Outdoor Unit A Combination...
  • Page 51 Three Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Piping Piping Piping Piping To Indoor Units To Indoor Units Connection Kit 2 Connection Kit 1 Connection Kit 1...

  • Page 52: Heat Recovery System

    6.4.2 Heat Recovery System Outdoor Unit Base Unit Refrigerant Piping To Indoor Units inch (mm) Standard Type Model Type 1-1/8 (28.58) 1-1/8 (28.58) 1-1/8 (28.58) Pressure Gas High/Low Piping Size 7/8 (22.2) 7/8 (22.2) 7/8 (22.2) Pressure Gas Liquid 1/2 (12.7) 1/2 (12.7) 1/2 (12.7) Two Units Combination...
  • Page 53 Three Units Combination < Figure for 240, 264 Type > (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Piping Piping Piping Piping To Indoor Units...
  • Page 54 Four Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Outdoor Unit D Outdoor Unit D Piping Piping Connection Kit 2 Connection Kit 2 Piping Piping...
  • Page 55 Two Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit B Outdoor Unit A To Indoor Units Piping Connection Kit Piping Connection Kit To Indoor Units inch (mm) Less Module Type Model Type Outdoor Unit A Combination...
  • Page 56 Three Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Piping Piping Piping Piping To Indoor Units To Indoor Units Connection Kit 2 Connection Kit 1 Connection Kit 1...

  • Page 57: Piping Size And Multi-Kit Selection

    Piping Size and Multi-Kit Selection 6.5.1 Heat Pump System For selecting the pipe sizes between the outdoor unit and the piping connection kit, the piping size between the piping connection kits and piping connection kit , refer to Section 6.4.1 “Piping Size between Outdoor Units”.
  • Page 58 Piping Size < inch (mm) > [Main Pipe Diameter] (Base Unit or Piping Connection Kit 1 to First Branch) Equivalent Piping Length Outdoor Unit < 328.1 ft (100m) > 328.1 ft (100m) *1) Capacity High/Low High/Low (MBH) Liquid Liquid Pressure Gas Pressure Gas 72 - 96 1-1/8 (28.58)
  • Page 59 Comply with the following when installing the unit. [ Example ] Upstream Side < For two and three units combination > Outdoor Outdoor Outdoor Unit Unit Unit Indoor Unit Side Piping Piping Connection Kit 1 Connection Kit 2 Upstream Side <...
  • Page 60 Allowable Piping Length < the recommended > the recommended Item Mark number of connected number of connected indoor unit indoor unit Total Piping Length < 3,281 ft (1,000m) < 984 ft (300m) Actual Length < 541 ft (165m) < 541 ft (165m) Maximum Piping Length Equivalent Length <...
  • Page 61 In the following instances, there is no limit to the number of main piping branches. (Example 1) : Installation with Main Piping Branch ( ) 90m). (1) If the pipe length L2 is over 131.2 ft (40m), the size of gas and liquid pipes “b and c” or “g and h” should be selected according to Table below, “Diameter of Pipe after First Branch”.
  • Page 62 A header branch can be used with a line branch at the three pipes segment and two pipes segment. A header branch can also be used after the second branch. Do not connect a line branch to a header branch to the farthest indoor unit is within 131.2 ft (40m). Within 131.2 ft Line Branch Line Branch...

  • Page 63: Heat Recovery System

    6.5.2 Heat Recovery System When selecting the pipe sizes between the outdoor unit and the piping connection kit, the piping size between the piping connection kits and piping connection kit , refer to Section 6.4.2 “Piping Size between Outdoor Units”. Outdoor Outdoor Outdoor...
  • Page 64 Multi-Kit (Optional Parts) < Line Branch > < Header Branch > First Branch Three Pipes Portion C for Outdoor Unit Capacity Total Model No. of Header (MBH) Indoor Unit Capacity Model Branches (MBH) 72 - 120 MW-NP452X2 36 - 72 MH-NP288X MW-NP692X2 168 - 360...
  • Page 65 Piping Size < inch (mm) > [Main Pipe Diameter] (Base Unit or Piping Connection Kit 1 to First Branch) Liquid Outdoor Unit Capacity High/Low (MBH) Pressure Gas Pressure Gas < 328.1ft (100m) > 328.1ft (100m) *1) 72 - 120 1-1/8 (28.58) 7/8 (22.2) 1/2 (12.7) 5/8 (15.88)
  • Page 66 [Diameter of Pipe] (Two Pipes Portion) Total Indoor Unit Capacity Gas *1) Liquid (MBH) < 41 5/8 (15.88) 3/8 (9.52) 42 - 65 3/4 (19.05) 3/8 (9.52) 66 - 86 7/8 (22.2) 3/8 (9.52) 114 - 155 1-1/8 (28.58) 1/2 (12.7) 156 - 185 1-3/8 (34.93) 5/8 (15.88)
  • Page 67 Comply with the following when installing the unit. [ Example ] Upstream Side < For two and three units combination > Outdoor Outdoor Outdoor Unit Unit Unit Indoor Unit Side Piping Piping Connection Kit 1 Connection Kit 2 Upstream Side <...
  • Page 68 Item Mark Details a+b+c Total The total amount of all piping actual length. Piping Length d+e+f+g+h Maximum The actual piping length between the stop valve of the outdoor unit Piping Length or the piping connection kit1 and the terminal indoor unit. The actual length of pipe that takes no account for equivalent lengths Piping Length for pressure drops of elbows.
  • Page 69 Allowable Piping Length < the recommended > the recommended Item Mark number of connected number of connected indoor unit indoor unit Total Piping Length < 3,281 ft (1,000m) < 984 ft (300m) Actual Length < 541 ft (165m) < 541 ft (165m) Maximum Piping Length Equivalent Length <...
  • Page 70 In the following instances, there is no limit to the number of main piping branches. (Example): Installation with Main Piping Branch ( ) 90m). *(g+h+j)-(b+d)<131.2 ft (40m) Piping Length from the Multi-Kit at the first branch to the terminal Indoor Unit is within 131.2 ~ 295.3 ft First Branch Terminal The Closest Indoor Unit...
  • Page 71 The number of indoor units connectable to outdoor unit is as follows: Comply with the following conditions when installing the unit. A maximum total capacity and a minimum total capacity against the nominal outdoor unit capacity can be obtained by combination of the indoor units. Model Type Standard Type Less Module Type...

  • Page 72: Multi-Kit Connection

    Multi-Kit Connection Use the branch piping kit to ensure proper piping. Do not use a T-Joint. Secure the branch pipes horizontally to a pillar, a wall, or a ceiling. NOTE: When installing the piping by securing plates, wrap the branch pipe with an insulation or slip a cushioning between the pipe and the plate.

  • Page 73: Electrical Wiring

    7. Electrical Wiring dissipate residual heat from the indoor unit. or a periodical check is performed. animals and temperature extremes. Failure to do so can over time, deteriorate system performance. components inside the unit. DSW7 Power Supply Setting and Service Setting 208V Unit: Setting is required.

  • Page 74: General Check

    When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 75 (1) Power Source Wiring Supply the power sources to each outdoor unit and indoor unit group respectively. Using this method is a basic principle of power supply wiring. < Heat Pump System > GFCI (Ground Fault Circuit Interrupter) Outdoor Unit Power Source S (Main Switch and Fuse) AC 3~ 208/230V 60Hz AC 3~ 460V 60Hz...
  • Page 76 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

  • Page 77: Electrical Wiring For Outdoor Unit

    TB2 terminals 3 and 4 on the PCB1. When shielded cabling is applied (M4), proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

  • Page 78: Electrical Wiring Connections Of Indoor Unit, Outdoor Unit, And Change-Over Box

    Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements. (Do not use Tri-Core or anything beyond.)
  • Page 79 (6) Use the same kind of cables in the same H-LINK system. (7) Maintain at least 5 inch (127mm) between the communication cables and the power supply wiring, and also min. 5 ft (1.5m) between the communication cables and power supply wiring for other electrical device.
  • Page 80 Outdoor Unit A (Main) Outdoor Unit B (Sub) L1 L2 L3 1 2 3 4 L1 L2 1 2 3 4 Ground Ground Main Switch TB : Terminal Block PCB : Printed Circuit Board : Field Wiring : Communication Line GFCI GFCI DC5V (Non-Pole Communication H-LINK System)

  • Page 81: Dip Switch Setting Of Outdoor Unit

    DIP Switch Setting of Outdoor Unit Turn OFF all power sources before performing settings. and 6 pins of DSW4, No.4 pin of DSW7 and push switches can be operated when power source is ON.) The darkened square “ ” indicates the position of DIP switches. NOTE adjustment is made.
  • Page 82 Setting for Transmitting Setting the outdoor unit Nos., refrigerant system Nos. and end terminal resistance for this H-LINK system. Setting of Outdoor Unit No. If there are combined outdoor units, set DSW6 as shown below. Combination of Base Unit Base Unit Unit A Unit B Unit C...
  • Page 83 Voltage DSW7 Setting DSW7 is used for setting of rated voltage for the outdoor unit as shown at right. 208V 1 2 3 4 When the site power source voltage is different from factory setting, a DSW7 setting is required. 230V NOTE: 1 2 3 4...
  • Page 84 Function Setting External Input/Output and Function Setting Make sure to perform external input/output and function setting while the outdoor unit is stopped. It cannot be set while the outdoor unit is operating or check mode. Details of Checking Mode should be [ External Input/Output Setting ] [ Function Setting ] according to the exhibit of...

  • Page 85: Additional Refrigerant Charge

    8. Additional Refrigerant Charge Airtight Test (1) Check to ensure that spindles of the stop valves for high/low pressure gas, low pressure gas (for heat recovery system only) and liquid pipes are closed completely before airtight test. (2) The refrigerant used for this outdoor unit is R410A. Use the manifold gauge and the charging hose for exclusive use of R410A.
  • Page 86 < Airtight Test Method > (1) Connect the manifold gauge to the check joints of the liquid line and the gas line stop valves using charging hoses with a vacuum pump or a nitrogen cylinder. Perform the airtight test. Do not open the stop valves. Apply nitrogen gas pressure of 601 psi (4.15MPa). leaking part.

  • Page 87: Vacuuming

    Vacuuming (1) Connect a manifold gauge and vacuum pump to the check joints*. High/Low Pressure Gas Stop Valve Heat Pump System Liquid Stop Valve High/Low Pressure Gas Stop Valve Heat Recovery System Low Pressure Gas Stop Valve Liquid Stop Valve (2) Continue vacuum pumping work until the pressure reaches -14.5 psi (-0.1MPa, -756mmHg) or lower for one to two hours.
  • Page 88 (b) Operate the compressor in the cooling mode and charge the additional refrigerant from the check joint of the liquid stop valve. An acceptable error must fall within 1.1 lbs (0.5 kg). At this time, keep the liquid stop valve slightly open. (c) After the refrigerant is charged, fully open the liquid stop valve and the gas stop valve.

  • Page 89: Additional Refrigerant Charge Calculation

    Additional Refrigerant Charge Calculation Table 8.1 Additional Refrigerant Charge Calculation Although this unit has been charged with refrigerant, an additional refrigerant charge is required according to piping length. Determine what additional quantity of refrigerant according to the following procedures, and charge it into the system.

  • Page 90: Automatic Simple Judgment System For Refrigerant Amount

    < Max. Additional Refrigerant Charge Quantity Allowed > Outdoor Unit Capacity (x 1,000 Btu/h) 96, 120 168 - 360 Max. Additional Ref. Charge Quantity (lbs) 79.4 88.2 112.4 138.9 < Initial Ref. Charge Amount of O.U. (Before Shipment) (W0 lbs) > Outdoor Unit Capacity (x 1,000 Btu/h) W0 Outdoor Unit Ref.
  • Page 91 (1) Refrigerant quantity check operation can be performed using the automatic judgment function after completing refrigerant charging, but depending on the installation and conditions, the result may be with the refrigerant amount calculated in the previous section regardless of this automatic judgment function result.
  • Page 92 Wait for at least three minutes after turning OFF the No.4 pin of DSW5 OFF and then the outdoor unit is ready to run. NOTE: During the check of refrigerant quantity operation, the 7-segment display may change over to display the protection control code by the activation of protection control.

  • Page 93: Test Run

    Test Run should be performed in accordance with Section 9.2. Use Table 9.1 for recording the Test Run. An electrical shock will occur if there is residual voltage. Turn OFF power at the power source completely before attempting any electrical maintenance work. Verify that no residual voltage exists after turning OFF the power at the power source.
  • Page 94 Caution for Insulation Resistance If the total unit insulation resistance is lower than one megaohm, the compressor insulation resistance may be lower, due to refrigerant being retained in the compressor. This can occur if the unit has not been used over prolonged periods of time. itself.

  • Page 95: Test Run

    Test Run This test run method is for the wired controller. As for other controllers, refer to Installation and Maintenance Manual attached to each controller. (1) Check to ensure that stop valves for high/low pressure gas, low pressure gas (only for Heat Recovery System), and liquid of the outdoor unit are fully opened.
  • Page 96 (d) Press “ ” or “ ”, select “LOUV.” and select “ ” (auto swing) by pressing “ ” or “ ”. The auto-swing operation will start. Check the operating sound at the louvers. If an abnormal sound emanates from the louvers, it may be caused by a deformation in the decorative panel due to incorrect installation.
  • Page 97 DIP Switch Setting Operation Remarks 1. Setting of Operation Mode 1. The indoor unit automatically * Note that indoor units operate in starts operating when the test run conjunction with the test run operation Cooling: Set No.2 pin of DSW4 OFF. of the outdoor unit is set.
  • Page 98 Table 9.1 Test Run and Maintenance Record MODEL: SERIAL. No. COMPRESSOR MFG. No. CUSTOMER'S NAME AND ADDRESS: DATE: 1. Is the rotation direction of the indoor fan correct? 2. Is the rotation direction of the outdoor fan correct? 3. Are there any abnormal compressor sounds? 4.
  • Page 99 Table 9.2 Alarm Code Code Category Content of Abnormality Leading Cause Activation of Float Switch (High Water Level in Indoor Unit Activation of Protection Device (Float Switch) Condensation Drainage Pan, Problem with Drain Piping, Float Switch, or Condensation Drainage Pan) Activation of Protection Device Activation of PSH (Pipe Clogging, Excessive Outdoor Unit...
  • Page 100 Code Category Content of Abnormality Leading Cause Incorrect Capacity Code Setting of Combination Incorrect Capacity Setting of Outdoor Unit and Excessive or Insufficient Indoor Unit Total Indoor Unit Capacity Code Incorrect Setting of Indoor Unit No. Duplication of Indoor Unit No. in same Refrigerant Group System Incorrect Indoor Unit Combination Indoor Unit is Designed for R22...

  • Page 101: Safety And Control Device Setting

    Compressor Protection The compressor is protected by the following devices and their combinations. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Oil Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is stopped.
  • Page 102 © 2015 Johnson Controls, Inc. P00796Q-rev.2 Code No. LIT-12012243 Revised May 2016...

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