Daikin VHF Manual

Installation and Maintenance Manual IM 986-11

Group: WSHP

Part Number: 910258818

Date: December 2018

Vertical Stack Water Source Heat Pumps

Model VHF Cabinet

Model VHC Chassis (Standard Range)

Model VHW Chassis (Geothermal Range)

Unit Sizes 009 – 036 / R-410A Refrigerant

Model VHF Model VHC/VHW

Contents

www.DaikinApplied.com 3 Vertical Stack WSHP • IM 986-11

Model Nomenclature ..........................4

Receiving and Storage.........................6

Receiving and Storage ........................6

Handling ...................................7

General Information ..........................7

Disassembling Upper and Lower Cabinet Sections ..8

Dimensional Data .............................9

Model VHF & VHW – 18" × 18" Cabinet –

Size 009-012 ................................9

Model VHF & VHW – 18" × 20" Cabinet –

Size 015-018 ...............................10

Model VHF & VHW – 24" × 24" Cabinet –

Size 021-036 ...............................11

Pre-Installation Considerations ................12

Cabinet Congurations .......................13

Critical Dimensions ..........................15

Framing Locations and Dimensions .............15

Louvered Return Air Panel Door with Optional

Motorized Outdoor Air Damper .................16

Vertical Riser Stub-Outs Locations to

Unit Knockouts .............................17

Return Air Panel Door(s) Dimensions ............18

Installation..................................19

Risers and Cabinet ..........................19

Water System Quality ........................21

Supply & Return Piping .......................22

Cleaning and Flushing Water System ............22

Operating Limits ............................23

Antifreeze Correction Factors ..................23

Power Wiring From Building to Unit .............24

Typical Connections For Thermostats & Temperature

Sensors Applications.........................24

Unit Piping Connection .......................27

Shutoff/Balancing Valve ......................27

Motorized Valve & Auto Flow Regulator ..........27

Make Flexible Hose Connections to the Supply and

Return Valves From Riser Stub-Outs ............28

Important When Handling Chassis ..............28

Installing Unit Chassis........................28

Making Cabinet to Chassis Wiring Connections ....29

Installing the (Optional) Remote Control Node (RCN)

For Use With The Optional Wireless Thermostat ...29

Installation..................................31

Installing The Return Air Panel Door.............31

Installing The Optional Motorized Outdoor Air Damper

with Louver Panel Door Only ..................32

Installing The Discharge Air Diffuser .............35

Twin Units Installation ........................36

Controls....................................37

Jumper Conguration Settings .................39

MicroTech® III SmartSource Unit Controller .......40

MicroTech SmartSource Controller with LonWorks®

Communication Module ......................41

MicroTech SmartSource Controller with BACnet®

Communication Module ......................41

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Fan Performance for PSC Motor (Sizes 009 - 036) . 43

Fan Performance for Constant Torque EC Motor

(Sizes 009-012).............................44

Fan Performance for Constant CFM EC Motor

(Sizes 015 - 036)............................45

Performance For Constant Torque EC Motor

(Sizes 009 & 012) ...........................46

Typical Wiring Diagrams ......................47

Typical Wiring Diagrams ......................49

Start-Up ....................................53

Information for Initial Start-up ..................53

Check, Test & Start Procedure .................53

Motorized Isolation Valve & Relay...............53

The in and outs of R-410A ....................54

Lubrication.................................54

Charging ..................................54

General Maintenance .........................54

Troubleshooting .............................55

Typical Refrigeration Cycles ...................56

Water Source Heat Pump Equipment Check, Test and

Start Form .................................57

Unit Check / Equipment Data ..................58

Model noMenClature

Note: Text displayed in Bold-Italics designate standard offering.

Category Code Item Code Option Code Designation & Description (Bold-Italic = Standard)

Product Category 1 1 W = Water Source Heat Pump

Model Type 2 2, 3, 4 VHC = Vertical Stacked Heat Pump Chassis

VHF = Vertical Stacked Heat Pump Cabinet

VHW = Vertical Stacked Geothermal Chassis only

Design Series 3 5 3 = 3rd Design

4 = 4th Design (Sizes 015 only)

Unit Size 4 6, 7, 8 009 = 9,000 Btuh Nominal Cooling

012 = 12,000 Btuh Nominal Cooling

015 = 15,000 Btuh Nominal Cooling

018 = 18,000 Btuh Nominal Cooling

021 = 21,000 Btuh Nominal Cooling

024 = 24,000 Btuh Nominal Cooling

030 = 30,000 Btuh Nominal Cooling

036 = 36,000 Btuh Nominal Cooling

Controls 5 9 B = MicroTech III Unitary Controller - Standalone

C = Microtech III Unitary Controller w/LonWorks Comm Module

D = Microtech III Unitary Controller w/BACnet Comm Module

F = Microtech III Unitary Controller w/BACnet Comm Module - WSHP System

Voltage 6 10 A = 115/60/1

E = 208-230/60/1

J = 265-277/60/1

Secondary Drain Pan 7 11, 12 GL = Standard Galvanized

SS = Stainless Steel - IAQ Option

YY = None

Refrigerant 8 13 A = R410A

Motorized 2-way Isolation Valve 9 14 C = 2-Way Motorized 1/2" Iso-Valve, General Close-Off Pressure N.C.

(Normally Closed)

V = 2-Way Motorized 1/2" Iso-Valve, General Close-Off Pressure N.O.

(Normally Open)

H = 2-Way Motorized 1/2" Iso-Valve, High Close-Off Pressure N.C. (Normally Closed)

D = 2-Way Motorized 3/4" Iso-Valve, General Close-Off Pressure N.C. (Normally Closed)

K = 2-Way Motorized 3/4" Iso-Valve, General Close-Off Pressure N.O. (Normally Open)

J = 2-Way Motorized 3/4" Iso-Valve, High Close-Off Pressure N.C. (Normally Closed)

E = 3-Way Motorized 1/2" Iso-Valve, General Close-Off Pressure N.C. (Normally Closed)

G = 3-Way Motorized 1/2" Iso-Valve, High Close-Off Pressure N.C. (Normally Closed)

M = 3-Way Motorized 3/4" Iso-Valve, General Close-Off Pressure N.C. (Normally Closed)

P = 3-Way Motorized 3/4" Iso-Valve, High Close-Off Pressure N.C. (Normally Closed)

B = Auto-Reg-PT

Y = None

Chassis Construction Type 10 15 A = 1/2" Fiberglass Skin Faced

E = 3/8" Closed Cell Foam

Note: F = 1/2" Fiberglass - Foil Faced

A compressor sound blanket is not recommended Y = None

for units with a rotary compressor 16 M = Mass Plate & Comp Blanket (Unit Sizes 024-036 Only)

(Unit sizes 009-021) S = Mass Plate Only

Coaxial Heat Exchanger

Construction 11 18 C = Copper Inner Tube - Steel Outer Shell

S = Cupronickel Inner Tube - Steel Outer Shell

Discharge Air 13 20 B = Primary Supply - Back

F = Primary Supply - Front

L = Primary Supply - Left

R = Primary Supply - Right

T = Primary Supply - Top

Y = None

21 B = Secondary Supply - Back

F = Secondary Supply - Front

L = Secondary Supply - Left

R = Secondary Supply - Right

T = Secondary Supply - Top

Y = None

22 T = Tertiary - Top

Power Connection 14 23 F = Fused Disconnect with Wire Harness

N = Non-Fused Disconnect with Wire Harness

H = HACR Breaker

IM 986-11 • Vertical Stack WSHP 4 www.DaikinApplied.com

Model noMenClature

Note: Text displayed in Bold-Italics designate standard offering.

Category Code Item Code Option Code Designation & Description (Bold-Italic = Standard)

Blower Motor 15 24 1 = Standard PSC

3 = EC Motor

25 2 = 2 Speed Fan - T'Stat Controlled

3 = 2 Speed Fan - Unit Toggle Switch

4 = 4 Position Fan Speed Selection Switch (Units with EC motor)

Power & Control Access 16 26 S = Side

T = Top

Flow Control 17 27 B = Auto Flow Regulator 1.5 GPM

C = Auto Flow Regulator 2.0 GPM

D = Auto Flow Regulator 2.5 GPM

E = Auto Flow Regulator 3.0 GPM

F = Auto Flow Regulator 3.5 GPM

G = Auto Flow Regulator 4.0 GPM

H = Auto Flow Regulator 4.5 GPM

I = Auto Flow Regulator 5.0 GPM

J = Auto Flow Regulator 5.5 GPM

K = Auto Flow Regulator 6.0 GPM

L = Auto Flow Regulator 7.0 GPM

M = Auto Flow Regulator 8.0 GPM

N = Auto Flow Regulator 9.0 GPM

O = Auto Flow Regulator 10.5 GPM

YY = None

28 S = Strainer

Filter Type 18 29 S = Standard 1"Fiberglass

Y = None

M = 1" Merv 8

Cabinet Height 19 30, 31, 32 080 = 80" Cabinet Height

088 = 88" Cabinet Height

092 = 92" Cabinet Height

096 = 96" Cabinet Height

Cabinet Insulation 20 33, 34 AY = Standard 1/2" Fiberglass

EY = 3/8" Closed Cell Foam (IAQ)

FY = 1/2" Foil Faced

YY = None

Riser Mounting 21 35 F = Factory Supplied Shipped with Cabinet - for Field Installation

J = Factory Supplied Shipped Separate from Cabinet - for Field Installation

Riser Location 22 36 L = Left Cabinet Piping

R = Right Cabinet Piping

B = Back Cabinet Piping

Heating Options 23 37 H = Hydronic Heat

Y = None

Heating Control Option 39 A = 3-Way 1/2" Motorized Valve

B = 3-Way 3/4" Motorized Valve

Y = None

Wireless T'Stat Option 24 40 N = Factory Installed Wireless RF Receiver with Non-Programmable Thermostat

P = Factory Installed Wireless RF Receiver with 7-Day Programmable Thermostat

Y = None

Packaging 30 50 1 = Multipack Chassis or Single Crated Cabinet

2 = Multipack Cabinets - Multiple Cabinets on one pallet group

Extended Warranty 31 51 Y = None

V = 1 Year Extended Compressor Only Parts Warranty

W = 1 Year Extended Refrigerant Circuit Parts Warranty

E = 1 Year Extended Complete Unit Parts Warranty

C = 4 Year Extended Compressor Only Parts Warranty

R = 4 Year Extended Refrigerant Circuit Parts Warranty

P = 4 Year Extended Complete Unit Parts Warranty

www.DaikinApplied.com 5 Vertical Stack WSHP • IM 986-11

reCeiving and storage

IM 986-11 • Vertical Stack WSHP 6 www.DaikinApplied.com

Receiving and Storage

Upon receipt of the equipment, check the carton and pallets

for visible damage. Make a notation on the shipper’s delivery

ticket before signing. If there is any evidence of rough handling,

immediately open the cartons to check for concealed damage.

If any damage is found, notify the carrier within 48 hours to

establish your claim and request their inspection and a report.

The Warranty Claims Department should then be contacted.

Cabinet Stacking (1 unit per crate)

Do not stack over three crates high at any time during trans-

portation or storage.

Unit back

Pallet front

Risers

Risers are factory supplied with

cabinet for eld installation.

Unit front

Note: Packaging has been tested and certied in accordance with the

International Safe Transit Association (ISTA), test procedure 3B.

Chassis (4 per skid)

Do not stack over two skid high at any time during transporta-

tion or storage. For storing, each carton is marked with “up”

arrows.

Storage and Operating Environment

Temporary storage at the job site must be indoor, completely

sheltered from rain, snow, etc. Units should not be installed in

environments that fall below freezing or exceed 140°F ambient.

Table 1: Cabinet packaging overall dimensions

Unit Size Cabinet Size

18 x 18 18 x 20 24 x 24

009-012

With Risers121"W x 29"H x 91.50" to 124.50"L – –

Without Risers 21"W x 27"H x 91.50" to 107.50"L – –

015-018

With Risers1_ 21"W x 31"H x 91.50" to 124.50"L –

Without Risers _ 21"W x 29"H x 91.50" to 107.50"L –

021-036

With Risers1_ – 27"W x 35"H x 91.50" to 124.50"L

Without Risers _ – 27"W x 23"H x 91.50" to 107.50"L

Note: 1 Risers are factory supplied with cabinet for eld installation.

reCeiving and storage

www.DaikinApplied.com 7 Vertical Stack WSHP • IM 986-11

Handling

Carefully check items against the bills of lading to verify all

crates and cartons have been received.Cabinets and Chassis

normally ship four to a pallet.

Carefully inspect all units for shipping damage. Report

damage immediately to the carrier and le a claim.

Check the unit data plate to be sure the unit electrical agrees

with the power supply available (Figure 1).

DO NOT handle units by the riser piping. Riser clamps hold the

riser in position; they are not designed to support the cabinet

weight. The clamps are removed after the unit is installed.

Figure 1: Unit components & descriptions - received as

assembled cabinet with chassis shipped separate

Unit

Data Plate

Stub-out

Seals

Chassis

Data Plate

Component Descriptions (Assembled Cabinet)

1. Cabinet assembly complete (without chassis)

1a. Pipe riser sets (return, supply and condensate)

1b. Inner front panel and lter bracket

2. Cooling and heating chassis (shipped separate)

3. Return air grille/panel (accessory)

4. Double-deection diffuser (accessory)

Unit cabinets are factory assembled and wired and have

individual thermostat control capability. They are installed by

stacking one unit on top of the other. While installing, prevent

dirt and other foreign matter from entering the risers and plug-

ging lines or valves.

General Information

Daikin Vertical Stack units are designed for use in multiple oor

apartments, ofce buildings, hotels, nursing homes and other

similar applications. They require a minimum amount of oor

space and are designed for multiple discharge arrangement.

Installation and maintenance must follow accepted industry

practices as described in the ASHRAE Handbook, the National

Electric Code, and other applicable standards. Install this

equipment in accordance with regulations of authorities having

jurisdiction and with all applicable codes.

CAUTION

Sharp metal edges are a hazard, use care when servicing

to avoid contact with them.

WARNING

The installer must determine and follow all applicable

codes and regulations. This equipment presents hazards

of electricity, rotating parts, sharp edges, heat and weight.

Failure to read and follow these instructions can result in

property damage, severe personal injury or death. This

equipment must be installed by experienced, trained

personnel only.

CAUTION

Installation and maintenance are to be performed by

qualied personnel who are familiar with local codes and

regulations, and experienced with this type of equipment.

Prior to installing

IM 986-11 • Vertical Stack WSHP 8 www.DaikinApplied.com

Disassembling Upper and Lower Cabinet

Sections

The Vertical Stack unit cabinet ships completely assembled. If

required, it may be disassembled into two (2) sections (upper-

fan/discharge cabinet) and (lower chassis/return air cabinet) to

make it easier to handle. To disassemble, do the following.

1. Remove risers (if received attached).

2 Remove the three (bottom row) screws on the back of the

unit as shown in Figure 2.

Note: Retain all screws for later use to reassemble unit in

reverse order as described in steps 1-6. Number of

screws will vary depending on unit size.

3. Carefully lay the unit down on its back and remove the

remaining eight (8) screws on the left and right side of the

cabinet (Figure 3).

4. Remove the ten (10) screws and lift off the front panel/lter

rack to gain access to the cabinet interior (Figure 4).

5. Locate and remove the six (6) screws located inside the

cabinet joining the upper and lower cabinet sections

(Figure 5).

Note: Pull the insulaton away from the walls of the cabinet

interior to get access to the screws.

6. Separate the lower return air cabinet section from the upper

blower/discharge cabinet section (Figure 6).

Figure 2: Remove three (3) screws (bottom row) on the

back of the unit.

Back of Unit

Three screws (bottom row)

Figure 3: Remove remaining eight (8) screws on the left

and right sides of the cabinet

Four (4) screws located

on left side of cabinet

Figure 4: Remove the ten (10) screws from the front panel/

filter rack.

Figure 5: Remove the six (6) screws located on the interior

of the unit.

Return air cabinet

section interior

Figure 6: Separate the lower cabinet section from the

upper cabinet.

diMensional data

Model VHF & VHW – 18" × 18" Cabinet – Size 009-012

Dimensions

Unit Size 009–018 (18" ˣ 18") Cabinet (Dimensions in inches)

Unit Height

‟A” B C D E F G J K L M N P Q R S T U V

80, 88,

92, 96 18.07 18.11 37.50 0.88 58.09 2.38 3.125 2.0 2.0 6.72 12.4 7.9 3.3 3.0 3.0 3.3 4.5 4.5

Discharge Openings (Dimensions in inches)

Unit Size Single Double Triple Single- Top Opening

009–012 W H W H W H W H

14 16 14 8 NR NR 12 12

Notes: NR = Not Recommended

80" high cabinet not available with side discharge, top discharge only.

www.DaikinApplied.com 9 Vertical Stack WSHP • IM 986-11

diMensional data

Model VHF & VHW – 18" × 20" Cabinet – Size 015-018

Dimensions

Unit Size 015–018 (18" ˣ 20") Cabinet (Dimensions in inches)

Unit Height

‟A” B C D E F G J K L M N P Q R S T U V

80, 88,

92, 96 18.07 20.00 37.50 0.88 58.09 2.38 3.125 2.0 3.0 6.72 12.4 7.9 3.3 4.0 3.0 3.12 4.5 4.5

Discharge Openings (Dimensions in inches)

Unit Size Single Double Triple Single- Top Opening

015–018 W H W H W H W H

14 16 14 8 14 8 12 12

Note: 80" high cabinet not available with side discharge, top discharge only.

IM 986-11 • Vertical Stack WSHP 10 www.DaikinApplied.com

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