
6
U-CLIP
PLASTIC
CONNECTOR
VALVE
Figure 16
STEAM AND WATER PLUMBING
1. The plumbing can enter from the left and/or right side of
the unit through the slots and holes that are supplied in
the hydronic top assembly. (See Steam and Water
Plumbing Dimensions figures.)
2. Hydronic water kits (HWK03E may have water entering
either the left or right side of the coil. Hydronic steam kits
(HVK03E)can only have enteringsteamontheright side
of the coil. (See Steam and Water Plumbing Dimen-
sions figures.)
3. Make sure all piping is plumbed to the coil and system
has been bled of air. Using the existing six screws and
hydronic top from Step 13, place the top cover over the
coil deck assembly. Make sure the back flange of the
top cover fits inside the small vertical flange in the back
of the coil assembly. (Figure 17.)
Flange
Hydronic
Coil
Water
Piping
Figure 17
NOTE: A manual bleed valve is supplied with both the
Hydronic Water and Hydronic Steam Kits (HWK03E and
HVK03E). It is recommended that an automatic bleed valve
for Hydronic Steam Kits (HVK03E) be installed. This will
eliminate frequent access to the manual bleed valve for
purging air from the steam system.
FINALKITINSTALLATIONSTEPS
1. Place the hydronic front on the top assembly so the
flanges of the front fit tightly into the flanges of the top
assembly.
2. Ensure the inlet air filter is located inside of the inlet grille
and held in position with the four brackets (one on each
side and two on the bottom). The inlet grille can be
hinged open by unlatching the two top levers on the
grille.
3. To service the unit, remove the front. Remove the four
sheet metal screws that secure the unit to the wall
sleeve from each of the side seal mounting brackets. If
a subbase is used, remove the right side cover panel
from the subbase and disconnect the power cord. The
chassis may be removed for service.
NOTE: To prevent water hammering, the use of approved
motorized valves and good piping practices is strongly
recommended. Opening and closing motorized valves very
slowly will help prevent water hammering.
CONFIGURATIONSETTINGSFORR410A
ESERIESMODELBOARDS
The control can be configured to operate a wide range of
options. The options listed below with the * are the factory
default settings. If these are acceptable, then the unit does
not require any additional configuration and is fully operable.
To configure the unit, first select the configuration feature
code setting and then an option code to change from the
factory default setting.
To enter configuration feature mode:
1. Pressandhold the up anddown arrow keys atthe
same time and press theOFF key twice within
a two (2) second time frame. The display will indi-
cate - -., and then release the key and press the
key one time. The display will then alternate be-
tweenC1 and 0.
Toselect adifferentconfiguration feature code,press
the HEAT key until the desired configuration
comesup.Toscrollto apreviouslyviewed configura-
tion codes press the COOL key.
Once you have scrolled to the correct feature, then to
selectthe option code foryour desired configuration,
press either the up or down key to scroll through
the options of the selected feature code.
To exit configuration mode:
1. Press the OFF key. Configurationfeature
mode will also exit if no keys are pressed for a pe-
riodof two (2) minutes.