Enviro VS09-36, VB09-36, VM09-36l, VSCS09-36 Installation Operation & Maintenance
Indoor Packaged equIPement
InstallatIon, oPeratIons, maIntenance
VertIcal stacked water source Heat PumP
model VB/Vm/Vs09-36 caBInet
model Vscs09-36 cHassIs
Supersedes: ET145.18-IOM1 (513) Form ET145.18-IOM1 (115)
and
LD18013LD18014
r-410a
Issue Date:
January 21, 2015
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDLINES
This equipment is a relativ ely complicated apparatus.
During installation, operation, maintenance, or
service, individuals may be exposed to certain
components or
refrigerants
components, and both high and low voltage. Each of
these items has the potential, if misused or handled
improperly, to cause bodily injury or death. It is the
obligation and responsibility of operating/service
personnel to identify and recognize these inherent
hazards, protect themselves, and proceed safely in
completing their tasks. Failure to comply with any of
these requirements could result in serious damage to
the equipment and the property in which it is situated,
The following symbols are used in this document to alert the reader to areas of potential hazard.
conditions i ncluding, but not limit ed to:
, oils, materials under pressure, rotating
SAFETY SYMBOLS
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or serious
injury.
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in de ath or serious
injury.
All wiring must be in accordance with publishe d specifications and must be performed ONLY
by qualified service personnel. The manufacturer will not be responsible for damages/problems
resulting from improper connections to the contr ols or appli ca tion of impr oper contr ol si gnals .
Failure to follow this will void the manufacturer’s warranty and cause serious damage to property
or injury to persons.
FORM ET145.18-IOM1 (115)
as well as sever personal injury or death to themselves
and people at the site.
This document is intended for use by owner-authorized
operating/service personnel. It is expected that this
individual possesses independent training that will enable them to perform their assigned tasks properly and
safely. It is essential that, prior to performing any task
on this equipment, this individual shall have read and
understood t his document a nd any referenced materia ls .
This individual shall also be familiar with and comply with
all applicable governmental standards and regulations
pertaining to the task in question.
CAUTION identifies a hazard which could
lead to damage to t he machine, damage
to other equipment an d/or envir onmental
pollution. Usually and instruction w ill be
given, together with a brief explanation.
NOTE is used to highlight additional information which may be helpful to you.
ENVIRO-TEC 2
FORM ET145.18-IOM1 (115)
In complying with the manufacturer’s policy for continuous product
improvement, the information contained i n this document is subject
to change without notice. While ENVIRO-TEC makes no
commitment to up-date or provide current inform ation automatically
to the manual owner, that information, if applicable, can be obtained
by contacting the nearest ENVIRO-TEC service office.
CHANGEABILITY OF THIS DOCUMENT
It is the responsibility of operating/service personnel as to the
applicability of these documents to the equipment in question. If
there is any question in the mind of operating/servic e personnel as
to the applicability of these doc uments, then, prior t o working on the
equipment, they should verify with the owner whether the equipment
has been modified and if current literature is available.
TABLE OF CONTENTS
NOTICE & DISCLAIMER………………………………………..………………...…………………………..... 4
PREPARING TO INSTALL UNIT………………………………………..………………...…………………... 4
Literature………………………………………..………………...…………………………………........... 4
Shipping………………………………………..………………...…………………………………............ 4
Inspection & Storage………………………………………..………………...…………………………… 4
Pre-Installation………………………………………..………………...………………………………….. 4
Rigging………………………………………..………………...………………………………….............. 5
RISER/CABINE T INSTALLATION………………………………………..………………...………………... 11
Cabinet Placement………………………………………..………………...………………………….… 11
Supply and Return Piping………………………………………..………………...……………………. 12
Hoses………………………………………..………………...………………………………….............. 12
ELECTRICAL WIRING……………………………… ………..………………...…………………………….. 15
Field Installed Power Wiring………………………………………..………………...…………………. 15
Field Installed Low Voltage Wiring………………………………………..………………...………….. 15
Optional Surface Mount Thermostat Connection Wiring………………………………………..……. 15
Optional Remote Mounted Thermostat Wiring………………………………………..………………. 15
Optional ADA Door Mounted Thermostat………………………………………..………………...….. 16
ECM Continuous Fan………………………………………..………………...……………………….... 16
CLOSET & DRYWALL INSTALLATION………………………………………..………………...…………. 16
ACOUSTIC RETURN AIR PANEL………………………………………..………………...………………... 16
SUPPLY AIR DUCTWORK………………………… ……… ……. .… ……………...………………………... 20
Horizontal Supply Air………………………………………..………………...…………………………. 20
Top Discharge Supply Air………………………………………..………………...……………………. 20
TOP MOUNTED FRESH AIR SUPPLY OPENING………………………………………..…………….... 23
Top Mounted Fresh Air………………………………………..………………...………………………. 23
Top Mounted Fresh Air with Motorized Damper………………………………………..…………….. 23
CHASSIS INSTALLATION………………………………………..………………...……………………….... 25
Units with NPSH Valve Connection and Hose Sets………………………………………..……….... 25
Units with NPT-Style (Tapered Pipe Thread) Valve Connection and Hoses.............. .... .. .. . .. .. .. .. .. 25
UNIT START-UP……………….………………………………………….................................................... 27
Pre-Start-up Checklist………………………………………..………………...………………………... 27
Initial Unit Start-up.......................................................................................................................... 27
System Loop Temperature........ ..................................................................................................... 27
FAN SPEED ADJUSTMENT……………………………. ………………................................................... 28
MAINTENANCE…………………….………………..…………………...................................................... 30
UNIT CONTROLS…………………………………….…………………….................................................. 30
SYSTEM FLUSHING AND CLEANING……………………………………............................................... 33
APPENDIX
Wiring Diagrams………………………………………..………………...…………………………….... 34
R-410A Quick Reference Guide...….............................................................................................. 38
ENVIRO-TEC 3
After installing the unit, show the user how to turn
off the electricity to unit. Point out control and
switch locations for turning off the electricity.
Make sure user understands the importance of
following all safety precautions.
1. NOTICE & DISCLAIMER
As originally manufactured, this unit contains refrigerant
installed by the manufacturer. The manufacturer uses only
refrigerants that have been approved for use in the unit’s
intended country or market. The manufacturer’s 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 is identified on the unit's
faceplate and/or in the associ ated manuals. Any additions of
refrigerant into this unit must comply with the country’s
requirements with regard to refrigerant use and should be
obtained from the manufacturer’s distributors. Use of
unapproved refrigerant substitutes will void the warranties and
can cause injury or death.
DISCLAIMER
Customer modific ations to ENVIRO-TEC certified product s are
prohibited.
The manufacturer has certified the product as being compliant
with applicable government and/or industry standards. Product
certification is designated either on the produc t itself or in the
product literature. The certification mark identifies the
applicable standards as well as the Nationally Recognized
Test Lab (NRTL) or other testing facility that conducted the
testing, where applicable. If changes are made to the product,
an engineering review will be needed to assess the impact to
the product certification. In some instances, the changes may
be such that the NRTL or testing facility will need to review and
potentially re-approve of the product by means of a field or site
inspection and certification. Any person or entity making
changes to the product is responsible for obtaining any
necessary engineering review and re-approval. Unaut horized
customer modifications to ENVIRO-TEC products are
prohibited for the following reasons:
A. Modifications may create hazards which could result in
death, serious injury or equipment damage.
B. Modifications will void product warranties.
C. Modifications may invalidate product certifications.
Modifications may violate Country standards. Country
standards may require that only certified products be
used in certain applications, and modificat ions that result
in the loss of product certification may violate those
standards.
2. PREPARING TO INSTALL UNIT
A. Literature
Review this Manual and the Users’ Manual Information.
After installing the unit; give this Installer’s Inform ation Manual
to the end user. If you need help on any of the installation
instructions or other matters relating to the unit, contact the
office where you bought the unit. You may also refer t o the
unit rating plate for a contact name.
B. Shipping
Cabinets and risers are shipped in one of the following
configurations:
A. Risers are attached to cabinet, and cabinets are stacked
on their side. Chassis ships on separate skids.
FORM ET145.18-IOM1 (115)
B. Risers ship loose packaged in boxes and s orted by floor.
Cabinets ship upright up to 4 per s kid. Chassis ships on
separate skids.
C. Risers ship loose in packaged boxes, sorted by floor.
Cabinets ship upright on skids with chassis inside cabinet
(chassis electrical and water connections are not
installed). Cabinet must remain standing upright. Do not
place cabinets on their side with chassis inside. Chassis
is secured to service panel. Remove screws before
removing service panel and chassis.
C. Inspection & Storage
Cabinets, chassis and risers should be stored in the sam e way
they were shipped. Store in a dry area and ensure chassis
units are always in their upright position. If risers are being
stored at the job site ensure the ends are capped to prevent
contamination.
In areas where construction is not complete—including dry
walling, plastering, painting, and where emission of dust
particulates or fumes from out-gassing are present—all
precautions must be taken to protect the cabinet, cabinet
openings, and chassis from physical damage and
contamination by foreign material.
A. Check the unit for indications of damage in shipment.
Notify the Transportation company of any damage and
note the damage on the shipping receipt.
Rough handling may dislocate and damage internal
components.
B. Check riser projections at each end of the cabinet for
misalignment or end damage that would prevent mak ing
an acceptable connection.
C. Thermostats and other accessories which have been
shipped separately should be inspected f or quantity and
transit damage.
D. Store the refrigeration chassis in the normal upright
orientation to maintain oil in the compressor sump.
D. Pre-Installation
A. Verif y the model number on the unit nameplate with the
ordering and shipping information, to ensure the correct
unit has been shipped.
B. All cabinets may not be equipped with the same size
riser, or the same air supply grille arrangement. Carefully
inspect each unit before delivery to the installation site. In
most cases, each cabinet will be indi vidually tagged for a
specific location in the building.
C. Keep the cabi net sealed with the s hipping materials until
all plastering, painting and construction work is complete.
D. Remove the inner service panel , and manual ly check the
blower wheel for free rotation.
E. Match the refrigeration chassis to the proper cabinets by
referring to the cabinet and chassis nam eplate and label
information.
F. Remove the chassis refrigeration access panel (top
cover) and inspect the unit. Ensure that the refrigerant
tubing is free from obvious physical damage and kinks,
and check that piping does not touch other unit
components.
ENVIRO-TEC 4
G. The compressor is mounted on neoprene isolators with
metal spacing sleeves inside and secured with nuts,
which must be snug against the metal spacer sleeves.
H. Inspect all electrical connections. Connections must be
clean and tight at the terminals.
DO NOT USE THE RISERS TO LIFT THE CABINET
ASSEMBLY!
DO NOT install this unit outdoors.
A compressor/unit comprises a pressurized
system. Never Loosen threaded joints while the
system is under pressure and never open
pressurized system parts.
Before servicing, open and tag all disconnect
switches.
Do not install units in a flammable environment due
to the danger of an explosion.
Safety guards, shields, barriers, covers and
protective devices must not be removed while the
compressor / unit is operating.
FORM ET145.18-IOM1 (115)
E. Rigging
All safety features, disengagement and interlocks
must be in place and function correctly before the
equipment is put into operation. Never by-pass or
wire around any safety device.
Use gloves and protective goggles and where
appropriate, make sure to have a gas mask close at
hand. Also use electrical protection equipment and
tools suited for electrical operation purposes.
Personnel must be qualified according to national
safety rules and regulations.
The system should be installed by manufacturerqualified personnel. If not, it may cause water
leakage, electric shock or fire.
Follow all applicable regulations and safety practices during
rigging and lifting. Prepare and follow written rigging and lift ing
plan. Lifting must be directed by trained professional rigger.
Spreader bars must be used and be long enough to prevent
rigging from contacting unit. Use all and only designated lift
points according to unit's Manual(s). Locate center of gravity
through trial lifts to account for possible variations in unit
configuration. Use rigging and lifting techniques that keep unit
stable and level. Keep clear of unit when lifted.
ENVIRO-TEC 5
FIGURE 1 – Cabinet & Chassis Model Nomenclature
FORM ET145.18-IOM1 (115)
ENVIRO-TEC 6
FORM ET145.18-IOM1 (115)
ENVIRO-TEC 7
Mod el Ser ies 09 12 15 18 24 30 36
Nominal Cooli ng (Ton)
1
0.75 1.0 1.25 1 .5 2.0 2.5 3.0
Compressor Type
Refr i gera nt C ha rge (o z) 21 25 34 38 44 48 50
Air Coil-Type
Fa ce Area (sq ft) 1.46 1.56 2.35 2.35 2.63 3.33 3.33
Rows /FPI 2/16 3/14 3/14 3/14 3/14 3/14 3/14
Water Coil-Type
Standard Bl ower/Motor
Diameter x Width (in) 9x4T 9x4T 9x7T 9x7T 9x7 9x8 9x8
Motor HP 0.10 0.10 0.17 0.17 0.25 0.33 0.50
Hi -Sta tic Bl ower /Motor
Diameter x Width (in) 9x4T 9x4T 9x7T 9x7T 10x7T 10x8T 10x8T
Motor HP 0.10 0.10 0.17 0.25 0.33 0.33 0.50
ECM Blower/Motor
Diameter x Width (in) 9x4T 9x4T 9x7T 9x7T 10x7T 9x8 9x8
Motor HP 0.33 0.33 0.33 0.33 0.33 0.50 0.50
Hi -Sta tic ECM Bl ower/Motor
Diameter x Width (in) 9x4T 9x4T 9x7T 9x7T 10x7T 10x8T 10x8T
Motor HP 0.33 0.33 0.33 0.33 0.33 0.50 0.50
Filter Quantity-Size (in) 1-14x25x1 1-14x25x1 1-16x30x1 1-16x30x1 1-16x30x1 1-20x30x1 1-20x30x1
Cabinet Weight (lb)
2
130 130 145 145 150 175 175
Chassi s Weight (lb) 70 75 95 100 140 155 160
DWDI Forward-Curved Centrifugal / ECM Direct-Drive
DWDI Forward-Curved Centrifugal / ECM Direct-Drive
Rota ry
Scrol l
Enhanced Copper Tubes, Enhanced Aluminum Fins
Enhanced Surface Co-Axial
DWDI Forward-Curved Centrifugal / PSC Direct-Drive
DWDI Forward-Curved Centrifugal / PSC Direct-Drive
TABLE 1 – Physical Data
FORM ET145.18-IOM1 (115)
1) Nominal Capacity calculated in accordance with ARI/ISO Standard 13256-1 for Water Loop Application.
2) Cabinet weight is approximate and does not include weight of risers.
ENVIRO-TEC 8
FORM ET145.18-IOM1 (115)
80"
or
88"
B A
6
48
4.5
3
50
7
OPTIONAL 24V
CONNECTION FOR
SURFACE-MOUNT/
REMOTE MOUNTED
THERMOSTAT
SWITCH PLATE w/
2-SPD FAN SWITCH
(OPTIONAL:
DISCONNECT/
FUSES,
ADA MOLEX CONN.)
7/8" CONTROL
ENTRANCE
CHASSIS
SERVICE
PANEL
ELECTRICAL BOX
OPTIONAL
FRONT SUPPLY
OPENING
RETURN AIR
FLANGE
STANDARD 1 IN.
LEFT VIEW
FRONT VI EW
SERVICE
HOSES
PASS-THRU
RISER
OPENING
KNOCK-OUTS
(ALL 3 SIDES)
Mode l A B
R.A Flange
Wi dth
09-12 17 17 16
15-24 20 20 19
30-36 24 24 23
Cabi net Dimensions
Note:
1) Supply, Return, and Condensate riser openings are pre-punched on all sides and field convertible. Cut tabs to remove knock-out.
2) Supply and Return openings are 4” x 2.5”. During riser installation, ensure stub-out is centered in supply and return openings.
3) Condensate P-trap is accessible from front by removing bottom cover plate.
4) Riser and shut-off location is measured from base of cabinet and does not include stand height.
FIGURE 2 – Cabinet Unit Dimensions & Floor Sleeve Dimensions
ENVIRO-TEC 9
FORM ET145.18-IOM1 (115)
Note:
1) Riser shut-off valve is measured from base of cabinet and does not include st and hei ght.
FIGURE 2A – Cabinet Riser Dimensions
ENVIRO-TEC 10
FORM ET145.18-IOM1 (115)
3. RISER / CABINET INSTALL ATION
A. CABINET PLACEMENT
Refer to Figure 2, which shows the correct location of the
cabinet in relation to the floor sleeve and risers.
Do not use the risers to lift or move cabinets.
Risers must not be used to lift cabinets. Risers are not
designed to support or lift any part of the cabinet. Risers are
attached using nylon ties to allow for slight adjustments during
installation, and expansion of riser column during operation.
Care must be taken during installation to avoid damage to
risers and riser stub-outs.
Improper handling and installation of risers could
damage riser stub-outs and valves could result in
property damage, death or serious injury.
Do not allow the risers to bottom out. Riser stub-out
should be centrally located with cabinet riser stubout opening. Do not allow riser stub outs or risers
to contact cabinet sheet metal.
Do not drag risers on floor while moving the
cabinet.
For orders where risers are shipped loose, riser installation
can be done first before installation of cabinets. During riser
installation ensure riser stub-outs will be centered in the
cabinet openings. Do not allow risers to bottom out in swage.
Where risers are shipped attached to cabinets, installation of
risers and cabinets is done at the same time without the need
to detach risers from cabinet.
1. Place the cabinet in a horizontal position on the floor
adjacent to its installation location (when risers are
attached to cabinet).
2. The units are designed to accommodate a maximum
supply and return riser stub-out movement of 1-1/2
inches, due to expansion and contraction (total movement
of 3 inches). If the total calculated riser expansion or
contraction exceeds 1-1/2 inches, field installed
expansion compensation must be provided.
The initial positioning of the riser stub-out is correct when
the top of the riser pipe is 3 inches above the t op of the
cabinet (applies to standard riser models only:
VBR/VMR/VBS)
3. If the installation requires the use of field or factory
provided riser extensions, install the extensions to the
unit-mounted risers prior to moving the cabinet i nto final
position.
4. Raise the cabinet upright and lower the ris ers t hrough the
floor cut-out, aligning the risers into the swaged section of
the unit on the floor below.
Take extra care not to scrape or dent risers during
positioning. The riser tailpiece should insert
approximately 2" into the 3" long swaged section of
the unit below.
To ensure correct riser positioning, and to
compensate for variations in floor-to-floor
dimensions, DO NOT allow the riser tailpiece to
bottom out into the swaged section.
5. Center the risers in the pipe chase, and level t he cabinet
using shims as necessary.
6. Plumb risers in two planes to assure proper unit operation
and condensate drainage.
7. Placing cabinets on vibration isolation pads is
recommended to reduce noise transmission into floor.
Anchor cabinets into place, using sheet metal angles.
Do not drill, or drive screws into the cabinet in the
area of the internal drain pan.
8. Center the risers’ horizontal stub-outs (complete with
factory-installed shut-off valves) in the cabinet slot
openings. Ensure that the stub-outs are perpendicular to
the side/back panel.
9. Verify all risers are vertical and that they penetrate the
swaged joint at least 1". Factory provided risers come
with a 3 inch deep swage. Do not allow risers to
completely bottom out at 3 inches in the swage. The 3
inch swage depth is oversized t o allow for adjustments if
necessary to keep riser s tub-outs and valves centered in
the cabinet opening. Riser stub-out should be c entered in
cabinet opening to allow for expansion and contraction.
Riser stub-outs must not contact on any sheet metal
opening, otherwise damage can occur to stub-outs,
resulting in water leaks and property damage.
Correct Position of Stub-Out in Cabinet Riser Opening:
Incorrect Position of Stub-Out in Cabinet Riser Opening:
10. Braze or solder riser joints with industry accepted solder
or brazing rod material.
Riser system must be secured to building
structure. Cabinets are not designed to support
riser system.
11. The riser system must be secured, at a minimum of
one point, to the building structure. Cabinets are not
intended to support riser system! If the temperature
range of the system will exceed the allowed expansion
and contraction limits (1-1/2 inches maximum), riser
compensation provisions must be made by the installing
contractor.
ENVIRO-TEC 11
FORM ET145.18-IOM1 (115)
12. Ensure that individual unit shut-off valves remain closed
until the circulating loop system has been cleaned and
flushed.
B. SUPPLY AND RETURN PIPI NG
1. Install a drain valve, shut-off / balancing valves, flow
indicators, and drain tees at the bas e of each supply and
return riser to enable system flushing, balancing, and
servicing.
2. Install strainers at the inlet of each circulating pump.
3. Insulate loop water piping that runs through
unconditioned areas of the building, or outside the
building. When loop water temperature is maintained
between nominal operating limits of 60-90
not sweat or suffer undue heat loss at c onditioned space
temperatures.
4. Install vents in piping loop as required to bl eed residual
air from the piping system during filling and servicing.
5. Refer to the following diagrams for determi ning what riser
shut-off valves and hose kits are required for job specific
site conditions.
A. Factory supplied risers will come with the
appropriate hose kits with NPSH type fittings (see
Diagram A). Before attaching hoses check that the
female end gasket is not missing and free of
damage or debris. See Table 3 below for
information on replacement gaskets.
B. For fi eld supplied risers we recommend ordering the
appropriate NPSH type field hose kits from the
factory, complete with shut-off valves. Shut-off
valves are to be fi eld sweat connec ted to ris ers (see
Diagram B).
C. Legacy chassis with NPT type connections and
matching risers with NPT shut-of f valve connections
require a special hose kit complete with NPT to
NPSH swivel adapter on the shut-off valve and
chassis connection (see Diagram C) to mate to
factory hoses.
C. HOSES
Ensure the correct hose set is matched with the compatible
unit size, see Table 2. W hen installing NPSH fact ory provided
hoses installer must follow these procedures when installing
hoses:
1. Inspect for missing or damaged hose gas ket, see Tabl e 3
for replacement gasket part numbers.
2. Tighten by hand screw connections to m ale NPSH fitting
on shut-off valve. Hold ferrule stationary when tightening.
3. Tighten by hand then using a back up wrench tighten a
further quarter (1/4) turn only. Do not over-tighten!
o
F, piping will
When installing hoses do not apply a twist or
torque load on the hose.
When tightening hoses hold ferrule stationary by
hand while tightening the screw connections. Avoid
tight bends or water flow and high pressure drops
may occur.
Hose gasket does not require extreme tightening to
obtain a seal. DO NOT OVERTIGHTEN or damag e to
gasket or sealing surface will occur. Do not apply
thread sealant.
Table 2: Chassis Hoses
CHASSIS MODEL HOSE TYPE
09/12/15/18 1/2” NPSH FEMALE-FEMALE
24/30/36 3/4" NPSH FEMALE-FEMALE
Table 3: Replacement Hose Gaskets
REPLACEMENT GASKETS FOR NPSH HOSE KITS
Part No. Description
VSGK-UFHW-050 1/2" RUBBER GASKET
VSGK-UFHW-075 3/4" RUBBER GASKET
HOSES MUST BE HAND TIGHTENTED THEN
FURTHER TIGHTENED NO MORE THAN 1/4 TURN.
DO NOT APPLY EXCESSIVE FORCE!
ALWAYS USE A BACK-UP WRENCH WHEN
TIGHTENING HOSES TO VALVES! OTHERWISE
VALVE SOLDER JOINT MAY FAIL LEADING TO
PROPERTY DAMAGE OR SERIOUS INJURY!
ENVIRO-TEC 12
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