© 1995-2009 Energy Saving Products Ltd.
Operation
The low voltage signals that energize the ESH come
from the air handler’s zone valve terminals (Z1 and C).
These are to be connected to #1 and #2 of the ESH. Note:
This connection is polarity sensitive. The Z1 is energized
with 24v with a call for heat from a W2 call on the air
handler’s terminal board. W2 will also energize the heating
fan speed on the air handler. For air handler to ESH low
voltage wiring, see page __ of this manual. High voltage
wiring of the ESH can be viewed on the inside of the ESH
front panel.
On a demand for heat the TH-24 electronic sequencer
will energize the heating elements in sequence. When the
thermostat is satisfied, all the elements and blower will be
de-energized.
Within the ESH, there are automatic reset thermal cut-out
disc type safety devices at a fixed temperature that open
the control circuit when a set point is reached. When the
overheating conditions have disappeared, it automatically
resets and returns the heater to normal operating conditions.
Zoning
The standard off the shelf ESH has a minimum of outlets
per kW that is required to be running for air flow. Energy
Saving Products Ltd. also offers a special electric strip
module for zoning capabilities. Please contact the factory
for additional information.
Maintenance
ESH heaters have been designed to operate long
term without issue. Those responsible for equipment and
maintenance should be aware of the following suggestions:
Periodic visual inspection: This precautionary step will
help to keep your unit operating properly. Inspect the unit
periodically and be on the lookout for any first signs of
problems: Accumulation of dust on the heating elements,
signs of overheating on the heater frame, traces of water or
rust on the control box.
Electrical inspection: Two weeks after start up, all electric
connections to contactors should be re-checked and
tightened. Before each heating season, the following steps
are recommended:
•
Check all fuses
•
Check resistance to ground for each circuit
•
Check resistance phase to phase for each circuit
•
Check the tightness of connections at all contactors
and heating elements
•
Check all contactors
•
Check electrical connections to heating elements,
magnetic contactors, and main power plugs.
It is recommended that this inspection be performed
monthly for the first four months of operation. Following
that, two inspections per heating season is sufficient.
Off Season Maintenance
Should a heater be shut off for a long period, we
recommend that you carefully check the resistance to
ground for each circuit. It is important not to power a heater
when too low a resistance to ground has been measured.
It is also recommended to pay attention to any other heater
operating in normal conditions. All control components
should be maintained and checked according to respective
manufacturer’s instructions. Any defective components
should be replaced only with identical origin parts.
Module ESH
Electrical Strip Heater Installation (2/4)
Module ESH Electrical Strip Heater Installation (2/4)
Specifications
ESH - 650
ESH - 750
ESH - 1100
Matching Fan Coil
HE - 50 / 51
HE - 70 / 71
HE - 100 / 101
Part Numbers
5kw - 10025650005
5kw - 10025750005
10kw - 10025110010
10kw - 10025650010
10kw - 10025750010
15kw - 10025110015
15kw - 10025650015
15kw - 10025750015
18kw - 10025110018
18kw - 10025750018
20kw - 10025110020
23kw - 10025110023
Volts
240
240
240
Phase
1
1
1
Shipping Weight
21
lbs
(9.5kg)
27 lbs
(12kg)
28 lbs
(13kg)
Module Size
Length
20”
(508mm)
24”
(610mm)
31”
(788mm)
Width
13”
(330mm)
13”
(330mm)
13”
(330mm)
Height
18”
(457mm)
18”
(457mm)
18”
(457mm)