Mestek SpacePak ESP-JV Series Instruction manual

SECTION 3: START UP & OPERATION
Sequence of Operation............................................. 20
Prior to Start-Up ....................................................... 20
System Start-Up & Adjustments............................... 20
Charging Cooling Only Systems............................... 24
Factors Affecting the alance of the System............ 24
SECTION 4: MAINTENANCE
efore Each Cooling Season.................................... 25
If System Fails to Operate........................................ 25
Troubleshooting Guide.......................................... 26-29
Service/Troubleshooting Form.................................. 31
Parts List................................................................... 32
WARRANTY INFORMATION...................... ack Cover
IN UNITED STATES: 260 NORTH ELM ST. WESTFIELD, MA 01085 [phone]/FAX [phone]
IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO, L5S 1L4 [phone]/FAX [phone]
COPYRIGHT®2017
Central Air Conditioning Series
2 to 5 Tons
Fan Coil Unit/Air Supply
Components
MODEL
ESP-JV SYSTEM
INSTALLATION,
OPERATION
& MAINTENANCE
MANUAL
ESPJV2-0218
W30-WG0890
SECTION 1: INTRODUCTION
SpacePak System Design........................................ 2
Code Compliance..................................................... 2
Air Distribution Requirements .................................. 2
Air Distribution Components..................................... 3
Shipment of Unit....................................................... 5
SECTION 2: SYSTEM INSTALLATION
Step 1: Locating the Unit.......................................... 6
Step 2: Cutting Return Air Opening.......................... 7
Step 3: Attaching Supply Air Plenum Adaptor.......... 8
Step 4: Setting the Unit............................................. 8
Step 5: Connecting Refrigerant Lines....................... 8
Step 6: Installing the Condensate Trap & Line......... 9
Step 7: Wiring the Unit...........................................10-15
Step 8: Installing Air Distribution Components......... 16

The following terms are used throughout this
manual to bring attention to the presence of potential
hazards or to important information concerning the
product:
Indicates an imminently haz-
ardous situation which, if not avoided, will
result in death, serious injury or substantial
property damage.
Indicates an imminently haz-
ardous situation which, if not avoided, could
result in death, serious injury or substantial
property damage.
Indicates an imminently haz-
ardous situation which, if not avoided, may
result in minor injury or property damage.
NOTICE: Used to notify of special instructions on
installation, operation or maintenance which are
important to equipment but not related to personal
injury hazards.
2
SPACEPA SYSTEM DESIGN
SpacePak is a hi-velocity central air conditioning system
which utilizes a conventional outdoor condensing unit
matched with the indoor Model ESP-JV fan coil unit to
provide conditioned air through the specially-designed,
pre-fabricated flexible duct system. The system and its
basic components operate the same as in any conven-
tional air-to-air cooling system.
The SpacePak system is covered by the following U.S.
Patents: 3,507,354; 3,575,234; 3,596,936; 3,605,797;
3,685,329; 4,045,977; 4,698,982; 926,673 and Canadian
Patents: 891,292; 923,935; 923,936.
CODE COMPLIANCE
Fan coil unit installation must conform to the require-
ments of the local authority having jurisdiction or, in the
absence of such requirements, to the National oard of
Fire Underwriters regulations. Fan coil unit meets ETL
listing requirements.
All electrical wiring must be in accordance with the
National Electrical Code ANSI/NFPA No. 70-latest edition
and any additional state or local code requirements. If an
external electrical source is utilized, the fan coil unit,
when installed, must be electrically grounded.
N TICE: It is a requirement of the International
Mechanical Code (307.2.3) to install a secondary
drain or an auxiliary drain pan where damage to any
building components will occur as a result of over-
flow from the equipment drain pan or stoppage in the
condensate drain piping from a cooling or an evapo-
rator coil. Follow local code requirements.
AIR DISTRIBUTION SYSTEM
COMPONENT REQUIREMENTS
Air distribution components installation must conform to
the requirements of local authority having jurisdiction or,
in the absence of such requirements, to the National Fire
Protection Association 90A or 90 .
Do not begin the installation of the system without
preforming a load calculation to determine heat gain,
system layout and material take-off. If a layout plan is not
already available and room terminator requirements
determined, then refer to the SpacePak Application
Manual, SP9, to complete this information. A description
of air distribution system components is shown in Figure
1.1.
Section 1: INTRODUCTION

3
RETURN AIR BOX (SPC-1D, AC-RBF-3, SPC-3D):
Each includes filter grill with metal frame, permanent
filter, and 2 clamp bands. SPC-1D is for ESP-2430JV. AC-
R F-3 is for ESP-3642JV and SPC-3D is for ESP-4860JV.
RETURN AIR DUCT (SPC-4,5, & 6): Flexible, 10 feet
long with round shape. SPC-4 (15" dia.) for ESP-2430JV.
SPC-5 (19" dia.) for ESP-3642JV and SPC-6 (24" dia.)
is for ESP-4860JV .
PLENUM ADAPTOR: 9" round OR 10" x 10" square
metal component to attach plenum duct to fan coil unit.
Plenum Adaptor - 9" Round - AC-PAJ
Plenum Adaptor - 10" x 10" Square - AC-PAJSQ
PLENUM DUCT & COMPONENTS: May be 9" round
sheet metal or 10" x 10" (O.D.) square, fiberboard duct
types as specified by the installing contractor. Above
layout is shown as an illustrative assembly reference only.
SUPPLY TUBING (SPC-25-100): Flexible, insulated,
2" I.D. and 3-1/4" O.D. Each section is 100 feet long.
R6 SUPPLY TUBING (AC-ST6-75): Flexible, R6 insulated,
2" I.D. and 5-3/8" O.D. Each section is 75 feet long.
R8 SUPPLY TUBING (AC-ST8-50): Flexible, R8 insulated,
2" I.D. and 6-1/4" O.D. Each section is 50 feet long.
INSTALLATION ITS: Contains a specified amount
of sound attenuating tubes, kwik-connects, terminator
plates (incl. spring clips & screws), winter supply air
shut-offs and a balancing orifice set to complete
installation of room outlets. Supplied in (2) [AC-IKLT-2]
and (5) [AC-IKLT-5] outlet boxed quantities.
PLENUM TA E-OFF IT: Contains a specific amount
of plenum take-offs, gaskets and fasteners to complete
installation of room outlets. Take-offs available for round
sheet metal or square fiberboard duct as specified by
installing contractor. Supplied in (2) [AC-TKMR-2] and
(5) [AC-TKMR-5] outlet boxed quantities for round sheet
metal and (2) [AC-TKFS-2] and (5) [AC-TKFS-5] outlet
boxed quantities for square fiberboard.
WI CONNECTWALLELBOW(AC- CWE): To allow
for wall terminations in 2" x 4" stud spaces.
PLIERS (SPC-72): To assure full setting of all clips
(fasteners) in plenum take-off (not shown).
PLENUM HOLE CUTTER (SPC-71-10): To cut 2" hole
in fiber board for plenum take-off installation (not shown).
FIGURE 1.1: AIR DISTRIBUTION SYSTEM COMPONENTS

4
Plenum Duct
The plenum duct can be run in practically any location
accessible for the attachment of the supply tubing (see
suggested layouts in Figure 1.2). The plenum is normally
located in the attic or basement, and it is usually more
economical to run the plenum where it will appreciably
shorten the lengths of two or more supply runs.
In some two-story split level homes, it may be
advantageous to go from one level to another with the
plenum duct. Whenever necessary, either between floors
or along the ceiling, the small size of the plenum makes it
easy to box in.
The fan coil unit is designed to operate with a total
external static pressure of 1.5 inches of water column
(minimum 1.2 - maximum 1.5). Excessive static pressure
increases the air flow in individual runs and may cause
some or all terminators to be noisy.
FIGURE 1.2: PLENUM/TUBING LAYOUT EXAMPLES
(FOR GUIDANCE ONLY)
UNIT NO. 1
UNIT NO. 2
FAN COIL UNIT
FAN COIL UNIT
NO MORE THAN
60% OF CAPACITY
ON ONE SIDE
30% MAX. OF CAPACITY
MINIMUM 18"
MINIMUM 18"
FIGURE 1.3: USE OF TEES
For systems designed with a bullhead tee installed as on
Unit No. 1 (Figure 1.3), the best results are obtained if not
more than 60% of the total number of system outlets are
attached to any one branch of the tee. For systems with a
branch tee installed as on Unit No. 2 (Figure1.3), not more
than 30% of the total number of system outlets should be
attached to the perpendicular branch of the tee.
The ESP-4860JV has some additional plenum installation
requirements that the smaller systems do not. This is due
to the twin blower arrangement.

Supply Tubing
In the case of two-story or split-level applications, supply
tubing may run from one story to another. It is small
enough to go in stud spaces, but this is often difficult in
older homes because of hidden obstructions in stud
spaces. It is more common to run the supply tubing from
the attic down through second story closets to the first
story terminators.
Supply tubing runs in the corners of the second story
rooms can be boxed in and are hardly noticeable since
overall diameter is only 3-1/4" (Model Number SPC-25-
100).
Room Terminators
Terminators should be located primarily in the ceiling or
floor for vertical discharge or high on a wall for horizontal
discharge. Installation of horizontally discharged termina-
tors is assisted with the SpacePak 90° wall elbow (see page
16). Two excellent spots for horizontal discharge are in the
soffit area above kitchen cabinets (see Figure 1.4) and in
the top portion of closets (see Figure 1.5).
Terminators should always be out of normal traffic
patterns to prevent discharge air from blowing directly on
occupants. And they should not be located directly above
shelves or large pieces of furniture. Outside wall or corner
locations are recommended if the room has more than
one outside wall. Locating terminators away from interior
doors prevents short cycling of air to the return air box.
SHIPMENT OF UNIT
Each fan coil unit is shipped in a single carton. Packed
with the unit, there are vibration isolation pads, a conden-
sate trap assembly and a factory installed primary float
switch.
Each unit comes from the factory charged with nitrogen.
When the unit is unsealed, a slight “pop” or “hissing”
noise should be heard. This guarentees that the unit is
properly sealed.
AA
AA
ROOM
TERMINATOR
FIGURE 1.4: TERMINATOR IN SOFFIT AREA
AA
AA
AAA
AAA
AAA
AAAAA
AAAAA
AAAA
SUPPLY
TUBING
ROOM
TERMINATOR
FIGURE 1.5: TERMINATOR IN CLOSET TOP AREA
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