Service manual

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Vertical Stack
Rev.: 11/09/12
8
ClimateMaster Water-Source Heat Pumps
1
Supply, Return, and
Condensate Risers
}
Install Now
2 Cabinet
3 Optional Frame
4 Chassis
}
Install Later
5 Return Air Panel
6 Supply Air Grille
7 Thermostat (Not shown)
8 Hoses (Not shown)
Supply and Return Piping
1. Install a drain valve, shut-off/balancing valves, fl ow
indicators and drain tees at the base of each supply
and return riser to enable system fl ushing at start-up,
balancing and during servicing.
2. Install strainers at the inlet of each circulating pump.
3. Insulate loop water piping which runs through
nonconditioned areas or outside the building.
Because loop temperature is normally between 60°
F and 90° F, piping does not sweat or suffer heat loss
under ambient conditions.
Condensate Piping - Condensate connection between
the drain pan assembly and condensate riser is factory
installed and trapped in VHS cabinet.
Riser Connections
1. Note: Cabinet and riser assemblies are designed
to accommodate a maximum of 1-½" expansion
and 1-½” contraction. If the calculated riser stack
expansion or contraction exceeds 1-½”, expansion
devices must be provided.
2. Slab slot opening must allow for how cabinet will
be set upright (see submittal). Openings should be
aligned from fl oor to fl oor.
Note: All riser modifi cations necessitated by variations
in fl oor-to-fl oor dimensions including cutting off or
extending risers or modifi cations due to misalignment
is the sole responsibility of the installing contractor.
Cabinet Installation
1. Each cabinet was ordered and built for a specifi c
location in building. Check tag information before
installing. Tag is located on bottom and lower
front of cabinet. Do not remove and discard shipping
brace until chassis is installed. For proper cabinet/riser
installation, installer must have access to all sides.
Riser & Cabinet Installation
 CAUTION! 
CAUTION! To ensure correct riser positioning and to
compensate for variations in fl oor-to-fl oor dimensions, do not
allow the unit to unit riser joint to bottom out.
 WARNING! 
WARNING! To avoid damage from clogged coil surfaces,
clogged motor ventilation openings, seized fan blades and
potential unit failure, DO NOT OPERATE UNIT without
complete enclosure, supply grille, return air grille and fi lter in
place.
5
1
3
(Optional)
Low Voltage Exit
For Remote Thermostat
(Optional Whip Exit)
2
R
S
6
High Voltage Entry
4
Do not
drive screws
into this area
Service Area
24” Min From
Finished Wall
 WARNING! 
WARNING! To prevent electrical shorts and drain pan leaks,
assure that screws do not penetrate unit components when
driving screws near the unit control box or drain pan. Do not
allow screws or nails to penetrate chassis, risers, electrical
junction boxes, raceways or to interfere with chassis removal.
To avoid motor or compressor damage, keep wallboard dust
out of the unit.
Figure 1: Vertical Stack Unit Components