ICE AIR VSHPW User manual

VSHPW
Vertical
Stack Unit
Water Source Heat Pump
Installation Manual
E L A-13 0 8 6

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
2
Thank you for purchasing and installing the Ice Air VSHPW (Water
Source Heat Pump). Ice Air is a leading supplier of VSHPWs, offering
superior quality, reliability and efficiency for our customers.
This is a general guide only, and should be treated as such. The
information contained in this manual, including but not limited to
installation instructions, unit dimensions, and physical/performance
data, may vary by project and unit configuration. Ice Air will not be
held liable for any information contained in this manual. For questions
about installation and unit performance, please contact your local
Ice Air representative. Installation and start-up should always be
performed by a trained professional.
ATTENTION INSTALLING PROFESSIONAL
Read this manual and familiarize yourself with the specific terms and
safety warnings that must be adhered to before attempting to install
or service this unit. Precautions listed are intended as supplemental
to existing practices. As a professional, you have an obligation to
know the product better than the customer. This includes all safety
precautions and related items. It is your responsibility to install the
product safely and know it well enough to be able to instruct a
customer in its safe use as required.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
WARNING: Ice Air will not be responsible for any injury or
property damage arising from improper service or service
procedures. If you install or perform service on this unit, you
assume responsibility for any personal injury or property
damage which may result. Many jurisdictions require a license
to install or service heating and air conditioning equipment.
WARNING, HIGH VOLTAGE: Disconnect all power before
servicing or installing unit. Multiple power sources may be
present. Failure to do so may cause property damage, personal
injury or death.
To ensure that the unit operates safely and efficiently, it must be
installed according to these installation instructions and all local
codes and ordinances, utilizing the best standards and practices at
the time of installation or, in their absence, with the latest edition
of the National Electric Code. The proper installation of this unit is
described in the following sections. Following the steps in the order
presented should ensure proper installation.
Contents
General/Safety Information.......................... 2
Overview/Application Note/Inspection ........ 3
Physical Data ................................................ 4
Typical Water Side Data ............................... 4
Unit Operating Limits.................................... 4
Performance Data......................................... 5
Electrical Data .............................................. 5
Before You Begin .......................................... 6
Installation...............................................7-16
Casing and Rise
Installation Congurations .......................... 7
Conguration Options ................................. 7
Riser Sizing and Insulation.......................... 8
Riser Expansion.......................................... 8
Riser Connection ........................................ 8
Installing Modular Risers............................. 9
Storage .................................................... 10
Cabinet Pre-Installation ............................ 10
Casing Pre-Installation.............................. 10
Discharge Knockouts and Grilles............... 10
Casing Dimensions................................... 11
Installing the Casing ................................. 12
Piping Connection..................................... 12
Hose Kit Installation .................................. 12
Optional Valve Accessories........................ 13
Installing the Chassis................................ 14
Drywall Installation ................................... 14
Filter Installation ....................................... 14
Filter Replacement.................................... 14
Installing the Access Panel........................ 15
Commercial Water Loop Applications ........ 16
Cleaning and Flushing................................ 17
General Wiring Diagram ............................. 18
System Start ............................................... 19
System Check List ...................................... 20
Controls..................................................21-28
Troubleshooting .......................................... 29
Preventative Maintenance.......................... 30
Product Nomenclature...........................31-32
Warranty/Contact Information ................... 36

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
3
Overview
Ice Air Vertical Stack Water Source Heat Pumps are quality units, which should only be installed by a trained professional. Please ensure all
sections are read thoroughly before installing the unit.
Application Note
It is important for heating/cooling systems to be properly sized for each application in order to achieve desired temperature and humidity
levels. It is highly recommended that a professional engineer match the WSHP units you are about to install with the building structure and
climate.
Inspection
1. Check the shipment against the Bill of Lading. Ensure all components are intact upon delivery and free from damage. Note any damage on
the delivering carrier’s Bill of Lading*.
2. The Ice Air unit(s) arrive prefabricated with an enclosure. Ensure both the unit and the enclosure are properly attached.
3. Make sure the floor is level in both directions so the unit’s airflow will be aligned. Confirm adequate drainage is available to ensure
adequate and continuous water flow during unit operation.
4. Remove the access panel is BEFORE installing.
5. Verify amperage to the unit(s) is correct and the unit can reach the power supply.
* Purchaser’s responsibility includes filing all claims with the delivering carrier in a timely fashion.
A
LUMINUM DOUBLE
DEFLECTION GRILLE
CONTROL
COVER
BLOWER
COVER
CHASSIS WITH
FILTER
SLIDE
RAILS
CASING
BLOWER
ACCESS PANEL
WITH HINGED
DOOR

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
4
Physical Data
Model VSHPW09 VSHPW12 VSHPW15 VSHPW18 VSHPW24 VSHPW30 VSHPW36
Compressor Type (1 Each) Rotary
Factory Charge R410A (oz) 28.2 32.5 32.5 38.8 40.9 52.9 67.0
Motor & Blower 208-230V PSC (Watts) 35 150 200
Blower Wheel Size (diam x w) - (in) 7 x 7 8 x 8
Chassis Air Coil Air Coil Dimensions (h x w) - (in) 20.0 x 11.4 26.0 x 12.2 28.0 x 17.3
Return Air Filter Dimensions (h x w) - (in) 29.5 x 13.9 31.1 x 15.9 31.6 x 19.8
Weight Chassis - (lbs) 100 102 137 138 160 165
88” Cabinet - (lbs) 156 183 260 264
Model VSHPW09 VSHPW12 VSHPW15 VSHPW18 VSHPW24 VSHPW30 VSHPW36
Flow Rate (GPM) 2.3 3.0 3.8 4.5 6.0 7.5 9.0
Water Connection (in) 1/2 3/4
Condensate Connection (in) 1/2
Mode Cooling °F Heating °F
Ambient Air min-max DB 50-100 50-85
Return Air Min DB/WB 65/60 50
Return Air Max DB/WB 95/75 80
Entering Water Min*-Max 60-110 60-90
Regardless of the system being utilized, optimum performance can only be achieved through adjustment to the recommended water flow at
each individual unit. Refer to unit requirements in the following table below:
* Additional insulation may be required
Typical Water Side Data
Unit Operating Limits

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
5
Performance Data
Electrical Data
Cooling Capacity BTUH Rated at @ 80.6°F, 66.2°F WB EAT 86°F EWT @ 3 GPM/TON
Heating Capacity BTUH Rated at @ 68°F DB, 59°F WB EAT 68°F EWT @ 3 GPM/TON
The performance data shown above is based on standard equipment under the provided design conditions. Performance may vary depending on equipment configuration and
project site conditions.
Model VSHPW09 VSHPW12 VSHPW15 VSHPW18 VSHPW24 VSHPW30 VSHPW36
Cooling Capacity (BTUH) 9,000 12,500 13,000 18,000 23,000 27,000 36,000
Sensible Capacity (BTUH) 7,100 9,700 10,600 12,800 17,100 22,200 26,200
EER 13.3 14.1 14.4 14.1 13.3 13.7 13
Heating Capacity (BTUH) 12,000 14,000 15,000 19,000 27,000 32,000 41,000
COP 4.4 4.3 4.5 4.4 4.3 4.4 4.3
Flow Rate (GPM) 2.3 3.0 3.8 4.5 6.0 7.5 9.0
Air Flow (CFM) 420 500 540 630 770 1000 1150
Model VSHPW09 VSHPW12 VSHPW15 VSHPW18 VSHPW24 VSHPW30 VSHPW36
Voltage/Ph/Hz 208-230/60/1
Compressor RLA 4.05 5.4 5.4 7.35 9.9 11.6 15.45
Compressor LRA 20 27 27 42 55.4 60.2 75.6
Fan Motor FLA 0.7 0.7 2.0 2.0 1.85 1.85 3.98
MCA 5.8 7.5 8.0 11.2 14.4 16.5 23.3
MOP 10 12 13 19 24 28 39
Fuse Size 15 15 15 15 20 25 35

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
6
Before You Begin
1. Locate the unit where it can evenly
distribute air throughout the room
without obstructions. Units should be
installed no closer than 12” apart when
two units are side by side. A vertical
clearance of 60” should be maintained
between units.
2. Ensure the wall is structurally sound to
support the weight of the unit.
3. Adequate and continuous water flow
must be maintained for proper and
safe unit operation. Ensure adequate
drainage is also available.
4. Follow all applicable codes for
installation.
5. Dedicated electrical circuitry and power
supply is required to properly energize
the Ice Air unit. Verify the amperage of
the dedicated electrical service to the
unit is correct and the unit can reach the
power supply.
6. Position the unit so the air filter can
be removed easily and required
maintenance can be performed without
interference.
7. A minimum obstructed distance of 36”
should be kept around the unit.
IMPORTANT: To avoid permanent damage
to the unit, DO NOT operate during
construction in an open space or as a
supplemental heating and cooling source
during construction.
Inspection
1. Upon receipt of the equipment, carefully
check the shipment again on the Bill of
Lading.
2. Make sure all units have been received.
3. Inspect the packaging for any damage.
4. Ensure that any damage is noted on the
delivering carrier’s Bill of Lading.
UNIT Dimensions (inches)
A B C D
VSHPW-09/12/15K 16” 17” 19” 8”
VSHPW-18/20/24K 18” 20” 21” 9”
VSHPW-30/36K 22” 24” 25” 11”
NOTE: It is the responsibility of the purchaser to file all necessary claims with the delivering
carrier in a timely fashion. Many carriers have a 15 day notice period from receipt of delivery
to file any and all claims.
FRONT OPEN WITH
KNOCKOUTS ON 3
SIDES & TOP SUPPLY
AIR OPENING
MOTOR-BLOWER ASS'Y
FILTER
OPTIONAL
FLEX HOSE
OPTIONAL
MOTORIZED
WATER VALVE
OR AUTO FLO
W
REGULATOR
VALVE
DRAIN PAN
CONDENSATE DRAIN HOSE
HEAT PUMP CHASSIS
RETURN OPENING
AIR COIL
KNOCKOUT
DISCONNECT SWITCH
(NON-FUSED)
OPTIONAL REMOVE T/STAT CONDUIT
NOTE:
RISER ARE OPTIONAL.
D
B A
C

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
7
Installation
Casing and Riser Installation Congurations
Riser system design is the responsibility of the building mechanical designer and/or the installing contractor. Because it affects individual unit
performance and efficiency, it is important that the system be properly designed, installed and balanced prior to operation of the equipment.
IMPORTANT: Please do not attempt to install risers without the help of a certified plumber.
Conguration Options
SINGLE SUPPLY
SC SA SB
SG SE
SF
SL SJ SK
DOUBLE SUPPLY
DB DC DA
DF
DG
DE
DK DL
DJ
TRIPLE SUPPLY
TA
TE
TJ
SUPPLY
DRAIN
RETURN
RISERS
CASING
RIGHT LEFT
FRONT
SUPPLY AIR TO ROOM
RETURN AIR FROM ROOM

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
8
Riser Sizing and Insulation
Riser sizing is generally based on the water flow requirements of
each unit and will vary depending on unit location within the building
(units on higher and lower floors that tie into the same riser column
may require different size risers, depending on the piping system
chosen). The riser material, diameter, length and insulation thickness
must be determined for each unit based on its positioning within the
building and the overall system requirements.
IMPORTANT: Please consult an engineer before proceeding with
riser installation.
Riser Expansion
Generally, in medium to high-rise buildings, allowances must be
made for pipe expansion. In applications supplemented with factory-
or field-supplied between floor riser extensions, assemble and install
extensions before installing the unit cabinet.
NOTES: Riser assemblies are designed to accommodate a maximum
of 1-1/8” expansion and contraction up to a total movement of
2-1/4”. If the total calculated rise expansion exceeds 2-1/4”,
expansion devices must be used (field provided).
All riser modification necessitated by variations in floor-to-floor
dimensions, including cutting off or extending risers, or providing
extensions, are the sole responsibility of the installing contractor.
In cases where piping movement is expected to exceed the factory
allowances, additional expansion compensation must be made to
the riser system in the field. The graph below displays the expansion
characteristics of risers compared to water temperature differential.
Assuming a minimum water temperature of 20°F and a maximum
water temperature of 120°F, the temperature difference of 100°F
indicates 90 feet of riser will expand or contract 1”. To eliminate
stress, a riser system must be anchored at least once to the building
structure. Technical information on pipe expansion, contraction and
anchoring can be found in the ASHRAE HVAC Systems and Equip-
ment Handbook. Riser expansion and the anchoring of both the riser
system and each unit is the responsibility of the design engineer and
installing contractor.
Riser Connection
Install cabinet with risers as follows:
1. Move cabinet into position. CAUTION: Keep risers off the floor
while moving the cabinet.
2. Be sure that all the copper fittings are clean and free of dirt.
3. Raise the cabinet upright and lower it so the attached risers
fit into the risers from the unit previously installed on the floor
below.
NOTE: The top of each riser is equipped with a 3” deep swaged
connection. There is sufficient extension at the bottom to allow
insertion of approximately 2” of the riser into the swaged top of
the riser below.
4. Center the risers in the pipe chase and shim the unit cabinet to
a level position. Plumb the risers in two planes to assure proper
unit operation and condensate drainage.
5. Attach the cabinet assembly to the floor and to the building
structure on at least two sides using sheet metal angles (field
provided).
NOTE: A field provided base vibration dampening pad can be
used to help eliminate transfer of any vibration from the unit to
the building structure. If vibration dampening pads are used,
some rough-in dimensional changes will need to be considered
before installation due to the type and thickness of the pads.
Additional anchorage can be provided by installing brackets at
the top of the cabinet (field provided).
6. DO NOT attach drywall studs to the equipment cabinet.
7. When all units on a riser are anchored into place, complete riser
joints as follows:
– Verify that all riser joints are vertically aligned and that risers
penetrate at least 1” into the swaged joint of the riser below.
DO NOT let riser joint bottom out.
– Braze riser joints with a high-temperature alloy using proper
Phos-copper or Silfos. Soft solder 50-50, 60-40, 85-15,
95-5 and low temperature alloys are not suitable riser weld
materials.
– Anchor built-in risers to the building structure with at least
one contact point. To accommodate vertical expansion and
contraction DO NOT fasten risers rigidly within the unit.
– Verify that unit shut-off valves are closed. DO NOT OPEN
VALVES until the system has been cleaned and flushed.
– Flush system, refer to “System Cleaning and Flushing” ection
of this manual for more information.
– Install vents in piping loop as required to bleed the system of
air accumulated during installation.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
9
Installing Modular Risers
Ice Air Modular Riser System is a unique riser system designed
to increase efficiency for the contractor and building mechanical
designer. Each riser set is encased and palletized separately prior to
shipping, allowing minimal installation efforts.
In order to install the Modular Riser System, carefully review the
mechanical plans and place the risers in the designated location.
Once the system is in place, the exposed joints allow for easy
pressure testing. To attach the unit, align the unit’s cabinet to each
riser set and ensure the riser stubs correspond to the unit’s piping
diagram.
NOTE: Riser dimensions vary by floor and project.
120.000
2.974
28.750
53.250
33.000
10.000
10.000
62.500
A
A
B
B
2.164
6.500
4.000 5.000
10.500
4.470
3.000
SECTION A-A
SCALE 1 : 2
SECTION B-B
SCALE 1 : 2.5
FRONT VIEW
TOP VIEW
ISOMETRIC
VIEW

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
10
Storage
• Ensure all equipment is stored in a clean and dry area.
• Ensure all equipment is properly covered and protected while at
job site. Keep coverings on units until installation is complete.
Precautions must be taken in areas where construction is still
underway to prevent any damage to the equipment.
Casing Pre-Installation
• Ensure all nameplate data is accurate.
• Check that all electrical connections are clean and secure.
• Remove supply air opening knockouts as shown on building
plans.
• Remaining knockouts must remain covered. Do not remove
unused knockouts.
• Remove correct riser knockouts.
• Apply vibration isolation pads to the bottom of the cabinet (if
applicable).
Chassis Pre-Installation
• Ensure refrigerant circuit is free of all damages and kinks.
• Check that all electrical connections are clean and secure.
Discharge Knockouts and Grilles
SIDE KNOCKOUTS
12" x 8"
12" x 12"
14" x 8"
14" x 14"
18" x 10"
18" x 14"
TOP KNOCKOUTS
12" x 12" 14" x 14" 18" x 14"
STEEL DOUBLE
DEFLECTION
GRILLE
OPPOSED BLADE
DAMPER
Discharge Knockout Sizes (88” Cabinet)
Model Top Back, Front, Side
09 thru 15 12 x 12 12 x 8 and 12 x 12
18 thru 24 14 x 14 14 x 8 and 14 x 14
30 thru 36 18 x 14 18 x 10 and 18 x 14
Supply Grille Sizes and Arrangements
Model
Discharge
Single Double Triple Top
VSHPW09 12 x 12 12 x 8 Not
Recommended 12 x 12
VSHPW12 12 x 12 12 x 8 Not
Recommended 12 x 12
VSHPW15 12 x 12 12 x 8 12 x 8 12 x 12
VSHPW18 14 x 14 14 x 8 14 x 8 14 x 14
VSHPW24 14 x 14 14 x 8 14 x 8 14 x 14
VSHPW30 Not
Recommended 18 x 10 18 x 10 18 x 14
VSHPW36 Not
Recommended 18 x 10 18 x 10 18 x 14

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
11
Casing Dimensions
UNIT Dimensions (inches)
A B C D
VSHPW-09/12/15K 16” 17” 19” 8”
VSHPW-18/20/24K 18” 20” 21” 9”
VSHPW-30/36K 22” 24” 25” 11”
A
B
C
D
REAR VIEW LEFT VIEW
RIGHT VIEW
BACK OF
CASING
TOP VIEW
FRONT OF
CASING

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
12
Installing the Casing
1. Ensure all preparations are met within the “Prerequisite Section.”
2. Concealed wall must be prefabricated for the entire length of
the casing. Additional wall features must be fitted after the unit
installation is complete.
3. Position the unit so the opening on the casing sits on the edge of
where the outer wall is planned.
4. Bolt the unit to the ground. The brackets are supplied by the
installer and should provide enough support to remove all
vibrational effects.
5. Bring the Removable Chassis within range of the Ice Air casing.
6. Follow “Piping Connection” and “Hose Kit Installation” sections.
7. Secure the Removable Chassis to the unit’s encasing. Follow
“Installing the Chassis” section.
8. The walls are now ready to be installed
9. Attach the Access Panel to the wall and ensure it is aligned to
the casing for access to the control panel and filter.
10. Run the casing.
Piping Connection
Ice Air’s Water Source Heat Pumps are manufactured with a remov-
able chassis for a matching cabinet. The removable chassis houses
the intake and outtake pipes as well as the condensate tubes that
link to the drain pan on the cabinet. Each chassis must be connected
to the risers before installing to the cabinet. Using a Braided Steel
Hose (provided by Ice Air), attach the risers to their respective pipes
(labeled as shown in image below). The removable chassis is now
ready to be installed.
Hose Kit Installation
1. Refer to the hose kit installation detail drawing (below) for an
illustration of a typical supply/return hose kit assembly.
2. Unpack and examine hose kit. Remove all shipping and/
or packing material such as rubber bands, plastic caps, and
Styrofoam. Hose kit should contain (2) hoses.
3. Attach the hoses to the shut-off valves supplied with risers.
Always use a back-up wrench when tightening the hose to
the valve.
4. Attach flex hoses. Let the universal ends of the hoses hang
inside the casing. NOTE: When valves and P/T ports are used,
be sure the valve handles and P/T ports are in a position that
enables them to be opened and closed and used for system
readings after hose installation. Check the swivel ends of the
hoses. Gaskets must be in the hose for proper seal.
5. Slide the chassis partially into the cabinet. Match the SUPPLY
hose to the SUPPLY tube on the chassis and the RETURN hose
to the RETURN tube. Tighten the swivel connections, keeping the
unit copper tubes parallel to the sides of the chassis, and then
tighten the hoses to the copper tubes, making sure the hose
hangs straight without twisting or turning.
NOTE: Always use back-up wrench on the fittings being
tightened.
6. With the hoses properly installed, you can proceed to slide the
chassis into place in the casing.
SUPPLY (TO RISER)
RETURN (TO RISER)
MOTORIZED
VALVE
(OPTIONAL)
BALL VALVES (BY OTHERS
OR FACTORY MOUNTED ON RISERS)
PRESSURE/TEMP TEST PLUG
AUTOMATIC
BALANCING
VALVE
(OPTIONAL)
BRAIDED STAINLESS
STEEL HOSES
CHASSIS

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
13
Optional Valve Accessories
Motororized Valve
The optional factory supplied motorized valve comes with a 2-way or
3-way valve body and a 2-position electric actuator. The actuator can
be normally open or normally closed. When powered, the actuator
moves to the desired position. When power is removed, the actuator
returns to the normal position.
Autoow Valve
The optional automatic balancing valve provides accurate flow
control. Valves are factory set to a rated flow. Flow will automatically
be controlled within a given tolerance of the set flow rate.
Strainer
The optional y-strainer collects and removes debris, extending
coil lifetime and preventing damage to controls and heat transfer
components. Optional blowdown valve allows for clean-out without
removing mesh screen.
Isolation Valve
The optional isolation valve is a manual shutoff valve. Water flow is
controlled by rotating the valve handle.
Stainless Steel Hoses
The optional stainless-steel hoses comes with swivel connections
for union of chassis and risers. Two hoses are provided per unit for
connection of supply and return lines.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
14
Installing the Chassis
1. Open the unit water valves and check piping for leaks.
2. Complete the electrical connections between the unit cabinet
and the chassis by mating the quick-connect plugs on the
chassis cables to the plugs located in the bottom surface of
the blower deck, directly under the control box, within the unit
cabinet.
3. Before installing the chassis, perform the following checks:
– Ensure that fan wheel rotates freely and does not rub against
housing. If rough handling during shipping has caused fan
wheel to shift, adjust as necessary.
– Verify that water piping connections to the chassis are
complete and that unit service valves, which were closed
during system piping flushing, have been re-opened.
– Verify that power between the cabinet and chassis is properly
connected.
– Re-attach the upper electrical access panel. Do not start the
unit with access panel removed, as this is an electric shock
hazard and system lockout and possible equipment damage
can occur.
NOTE: After the system has been filled and system pump is started,
all connections should be re-checked for water leaks. Proper
installation and checking of the piping system is the responsibility of
the installing contractor and Ice Air WILL NOT be responsible or liable
for any damage caused by any water leaks from field installed water
connection(s).
Filter Installation
Each unit is delivered with a filter for the filter rack. In order to install
the filter, slide the filter up into the inner portion of the upper rack.
Push forward and lower the filter into the bottom slot.
Filter Replacement
To replace the filter, gauge
whether the left or right side
allows for easier access to
the filter. Remove the screws
securing the plenum to filter
rack. Then remove the (left
or right) filter flange and slide
the filter out. Replace the filter
with a new one and attach the
vertical filter flange back fixing
it to the chassis. Ensure the
plenum is in the correct place
inside the filter rack and secure
with screws.
Drywall Installation
All rough-in drawings and instructions are designed for 5/8” thick
drywall. Rough-in dimensions will be affected if 5/8” drywall is not
used. Additionally, the air supply panel will not fit properly to the wall.
Poor fit up will affect unit air flow and performance. Install drywall
using standard construction practices. Proper mechanical fasteners
are required for installation.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
15
Installing the Access Panel
1. Install the provided adhesive backed
gasket material on the outer perimeter
of the cabinet to seal the return panel to
the cabinet.
2. Install the return cabinet panel. Refer to
the illustration below for details.
Overall Dimensions VSHPW09 VSHPW12 VSHPW15 VSHPW18 VSHPW24 VSHPW30 VSHPW36
Frame Width (in) A 20.65 22.65 26.65
Frame Height (in) 62.44
Inner Panel Width (in) B 18.76 20.76 24.76
Inner Panel Height (in) 60.56
Depth (in) 1.75

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
16
Commercial Water Loop Application
Commercial systems typically include a number of units connected
to a common piping system. Any system or unit piping maintenance
work can introduce air into the piping system. Therefore, air
elimination equipment is a major portion of the mechanical room
plumbing. In piping systems expected to utilize water temperatures
below 60°, 1/2” closed-cell insulation is required on all piping
surfaces to eliminate condensation. Metal-to-plastic threaded joints
should never be used due to their tendency to leak over time.
Balancing valves, flow control valves, motorized solenoid valves and
variable speed pumping systems may also be used.
The piping system should be flushed to remove dirt, pipe shavings,
chips, and other foreign material prior to operation (refer to “System
Cleaning and Flushing” section). The flow rate is usually set between
2.25 and 3.5 GPM per ton of cooling for most applications of water
loop heat pumps. To ensure proper maintenance and servicing, P/T
ports are imperative for temperature and flow verification, as well as
performance checks.
Water loop heat pump (cooling tower/boiler) systems typically utilize
a common loop, maintained between 60 - 90°F. The use of a closed
circuit evaporative cooling tower with a secondary heat exchanger
between the tower and the water loop is recommended. If an open
type cooling tower is used continuously, chemical treatment and
filtering will be necessary.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
17
Cleaning and Flushing
System Cleaning and Flushing
Cleaning and flushing the unit is the most important step to ensure
proper startup and continued efficient operation of the system. Follow
the instructions below to properly clean and flush the system.
1. Verify that electrical power to the unit is OFF.
2. Verify that supply and return riser service valves are closed at
each unit.
3. Fill the system with water, leaving the air vents open. Bleed all air
from the system, but do not allow the system to overflow. Check
the system for leaks and make any required repairs.
4. Adjust the water and air level in the expansion tank.
5. With strainers in place, start the pumps. Systematically check
each vent to ensure that all the air is bled from the system.
6. Verify that make-up water is available and adjusted to properly
replace any space remaining when all air is purged. Check the
system for leaks and make any additional repairs if needed.
7. Raise the loop temperature to approximately 85°F. Open the
drain at the lowest point in the system. Verify that make-up water
replacement rate equals rate of bleed. Continue to bleed the
system until the water appears clean or for at least three hours,
whichever is longer.
8. Completely drain the system.
Flushing the Risers
1. Close shut-off valves at each unit on the riser except the top floor
shut-off valve.
2. Flush solution through supply riser. NOTE: The solution passes
through the top floor connection and down the return riser.
3. When the building has more than 10 floors, connect the supply
and return run-outs on the top two floors to divide the water flow
and reduce pressure drop at the pump.
4. Repeat flushing procedure for each set of risers in the building.
5. Refill the system and add in a proportion of trisodium phosphate
approximately one pound per 150 gallons of water.
6. Reset the boiler to raise the loop temperature to about 100°F.
7. Circulate the solution for 8 to 24 hours. At the end of this period,
turn OFF the circulating pump and drain the solution. Repeat
system cleaning as needed.
8. Open the supply and return riser service valves at each unit.
Refill the system and bleed off all air.
9. Test the system pH with litmus paper. The system water should
have a pH of 6 to 8.5. Add chemicals as appropriate to maintain
pH levels.
10. When the cleaning process is complete, remove the short-
circuited hoses. Reconnect the hoses to the proper supply, and
return the connections to each of the units. Refill the system and
bleed off all air.
NOTE: DO NOT use “Stop Leak” or similar chemical agent in this
system. Addition of chemicals of this type to the loop water will
corrode the heat exchanger and inhibit unit performance.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
18
General Wiring
Line Voltage
Wiring, including the electrical ground, must comply with the
National Electrical Code as well as all applicable local codes.
Consult the wiring diagram below for field connections on the right
of the electrical diagram located on the back of the unit electrical
compartment front panel. All electrical connections must be made by
the installing (or electrical) contractor. All final electrical connections
must be made with a length of flexible conduit to minimize vibration
and sound transmission to the building.
General Line Voltage Wiring
Be sure the available power is the same voltage and phase shown
on the unit serial number plate. Line and low voltage wiring must be
done in accordance with local codes or the National Electric Code,
whichever is applicable.
WARNING: Electrical shock can cause personal injury or
death while installing or servicing the system. Always turn OFF
the main power to system. There may be more than one
disconnect switch.
Power Connection
Units equipped with disconnect: Connect incoming line voltage
to the disconnect switch and connect ground wire to the ground lug
provided inside the electrical compartment.
Units without disconnect: Line voltage connection is made by
connecting the incoming line voltage wires to the terminal block.
Volt Operation
All commercial units are factory-wired for specific voltages.
These include:
• 115 VAC
• 208-230 VAC
• 265-277 VAC
For 230 volt single-phase operation, the primary voltage to the
transformer must be changed.
NOTE: Failure to change the primary voltage lead when using 230 VAC line voltage
may result in electrical component damage and intermittent system failure.
C
R
F-
RV+
RV-
C
R
C1
L1
L2
O/L
POWER
V
COMPRESSOR
RELAY4
24VDC
REVERSINGVALVE
V
CS
R
WH
RE
WH
BK
RE BL
BK
RED
FAN1
FAN2
COMP
L
N
RELAY3
208VAC
24VAC
TRANSFORMER
BK
BK
BK
WH
WH
WH
P+
P-
F+
A
RT
RT
G1
G2
Y1
W1
W2
O
COF
LP1
LP2
HP2
BR
WH
BL
HP1
CN4
CN3
CN2
ELA-9830-V6.0
BK
BK
EVAPORATOR TEMP
PROBE
COAXIAL COIL TEMP
PROBE
ROOM
TEMP PROBE 1
HP SWITCH
LP SWITCH
BR
BL
COF
PUMP
BL BL
BK
RELAY2
208VAC
PLUG4
PLUG 2
PLUG 3
RT
ROOM
TEMP PROBE 2
LO
HI
EVAP. BLOWER
MOTOR
NO
COM
RELAY1
24VDC
C
L
N
PLUG 1
RELAY1 = WATER PUMP RELA
Y
RELAY3 = EVAP. BLOWER MOTOR RELAY(HI
)
RELAY4 = REVERSING VALVE RELA
Y
RELAY2 = EVAP. BLOWER MOTOR RELAY(LO
)
C1=COMPRESSOR CAPACITOR
WIRE CHART
COM
24 VAC
COOL
HEAT
HI-FAN
C
R
Y1
W1
G1
G2
ORN
RED
ORN/WHT
BLU
YEL
WHT
LOW VOLTAGE
LOW- FAN
ALAA
BLK
-O
GRA
GRT PURPLE
RTRT
BRN
VIEW 1
YEL
WHT
PLUG5
2
1
1-
PLUG2 WIRE CHART
W1
YEL
2- C
WHT
PLUG5
TO RELAY
24V COIL
(BY OTHERS)
PLUG
1
1
1-
PLUG2 WIRE CHART
COF
PLUG2
2
1
LBLK
1-
PLUG1 WIRE CHART
2- N
WHT
WHT
4
3
GYEL/GRE
3-
4- -
-
123
456
789
1-
PLUG7 WIRE CHART
2-
3-
4-
5-
6-
7-
8-
9-
BLK
BLU
ORG
WIT
GRY
BRN
BLK
YEL
YEL/GRE
FAN1
FAN2
FAN3
FAN4
FAN5
C
L
N
G
PLUG3
PLUG4
2
1
1-
PLUG2 WIRE CHART
MTRZD VAVLE
RED
2- N
WHT
MTRZD VAVLE
RST H1 Y1 F1 GRTALA RC
ON
1234567
ELA-13086
F2
PLUG6
123
456
789
1-
PLUG6 WIRE CHART
2-
3-
4-
5-
6-
7-
8-
9-
BLK
RED
YEL
WHT
--
BLU
ORN/WHT
--
ORNG
COMMON
24VAC
COOLING
HEAT
NOT IN USE
F2
F1
NOT IN USE
ALA
PLUG6
10 11
12
ROOM TEMP
PURPLE G
12- RST
10- GRY
11-
BRN

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
19
Pre-Startup Checklist
1. Power is supplied to unit.
2. Motorized valve is installed.
3. Clean filter is installed.
4. Casing/cabinet is installed.
5. Thermostat is installed.
6. Grilles are installed.
7. Access panel is installed.
8. Supply and return valve are open.
9. Condensate drains through primary and secondary drain pan.
Dump water into secondary drain pan to ensure proper drainage.
Start-Up Procedure
1. Adjust all valves to their fully open position.
2. Turn on power to the unit.
3. Turn the thermostat fan speed to “High.” Fan should start.
Check airflow. Balance airflow at registers.
4. Set thermostat mode to “Cool.” Wait several minutes.
Check for cold air delivery at registers.
5. Set thermostat mode to “Heat.” Wait several minutes.
Check for hot air delivery at registers.
6. If unit fails to operate properly, refer to troubleshooting section for
possible solutions.
Startup Checklist
1. Compressor comes on.
2. Motorized valve opens and closes.
3. Fan speed works properly in cooling mode.
4. Fan speed works properly in heating mode.
5. Thermostat operates properly.
6. Condensate overflow switch is functional.
7. Fan rotates properly.
8. No water leaks.
NOTE: Cooling, heating or fan mode operation is determined by
thermostat setting. For operational control please see Ice Air’s
thermostat manual. Please review 3rd party thermostat manuals
when controls are provided by others.
System Start
Start-Up Preparation
Prior to start up, ensure that all unit and system components are in good condition, water quality standards have been met, and ambient air
and water temperatures are within the operating range. The manufacturer will not be held liable for any damage incurred due to improper
system checkout or improper startup procedure. Startup should only be performed by a certified licensed technician.
Inspect each unit individually, ensuring the following conditions have been met.

Due to Ice Air’s ongoing product development programs, the information in this document is subject to change without notice.
20
System Check List
Installer: Complete unit and system checkout and follow unit start-up procedures provided with the unit. Use this form to record information,
temperatures and pressures during start-up. Keep this form for future reference.
Location Information
Owner:
Address:
Model Number:
Serial Number:
Unit Location in Building:
Date:
Sales Order No:
In order to minimize troubleshooting and costly system failures,
complete the following checks and data entries before the system is
put into full operation.
Temperatures: (Circle) F or C
Antifreeze: __________Type: __________%
Pressures: (Circle) PSIG or kPa
Allow unit to run 15 minutes in each mode before taking data.
Do not connect service manifold gauges during start up unless
instructed by Ice Air service tech.
Cooling Mode Heating Mode
Return-Air Temperature DB (°F)
Supply-Air Temperature DB (°F)
Temperature Differential
Entering Fluid Temperature (°F)
Leaving Fluid Temperature (°F)
Temperature Differential
Water Pressure IN
Water Pressure OUT (PSI)
Pressure Differential (PSI)
Flow Rate (GPM)
Supply Voltage at Contactor (V)
Transformer Low Side Volts (V)
Compressor Amps (A)
Motor Amps (A)