Diversified Heat Transfer TT-119 Operating instructions

INDIRECT
INDIRECT
INDIRECT
WATER
WATER
WATER
HEATERS
HEATERS
HEATERS
Installation
Installation
Installation
& Operating
&&Operating
Operating
Instructions
Instructions
Instructions
Models
Models
Models
MPMP
20,
MP20,
MP
20,MP
32,
MP32,
MP
32,MP
40
MP40
&40
MP
&&MP
50
MP50
50
TO THE INSTALLER: This manual is TO THE INSTALLER: This manual is TO THE INSTALLER: This manual is the property of the owner and the property of the owner and the property of the owner and must be affixed near the water must be affixed near the water must be affixed near the water heater for future reference. heater for future reference. heater for future reference. TO THE OWNER: This water heater TO THE OWNER: This water heater TO THE OWNER: This water heater should be inspected annually by a should be inspected annually by a should be inspected annually by a qualied Service Agency. qualied Service Agency. qualied Service Agency. WARNING
WARNING
WARNING
Improper
Improper
Improper
installa�on,
installa�on,
installa�on,
adjustment,
adjustment,
adjustment,
altera�on,
altera�on,
altera�on,
serviceservice
orservice
maintenance
or maintenance
or maintenance
can cause
cancan
cause
injury
cause
injury
or injury
or or
property
property
property
damage.
damage.
damage.
Refer to
Refer
this
Refer
tomanual.
this
to this
manual.
For
manual.
ForFor
assistance
assistance
assistance
or addi�onal
or addi�onal
or addi�onal
informa�on,
informa�on,
informa�on,
consultconsult
consult
a qualied
a qualied
a qualied
Installer
Installer
or
Installer
Service
or Service
orAgency.
Service
Agency.
Agency.
FORFOR
YOUR
FOR
YOUR
YOUR
SAFETY
SAFETY
SAFETY
Do notDo
store
Do
notnot
or
store
use
store
or
gasoline
use
or use
gasoline
or
gasoline
other
or other
amma‐
or other
amma‐
amma‐
ble vapors
bleble
vapors
and
vapors
liquids
andand
liquids
in liquids
the in
vicinity
the
in the
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thisof
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or or
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anyany
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other
other
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appliance.
Installa�on
Installa�on
Installa�on
and service
andand
service
service
must be
must
performed
must
be performed
be performed
by a qualied
by abyqualied
a qualied
Installer
Installer
or
Installer
or or
ServiceService
Agency.
Service
Agency.
Agency.
NEW JERSEY HEADQUARTERS • 439 MAIN ROAD, TOWACO, NJ 07082
PHONE: 800-221-1522 • WEBSITE: WWW.DHTNET. COM
Manufacturers and Designers Since 1938
CONTENTS
Contents
finished flooring or carpeted surfaces. DHT CANNOT BE
HELD LIABLE for damage caused by water from the
water heater, pressure relief valve, or related fittings.
Closets without drains and carpeted areas are examples
of unsuitable locations for any water heater. Select a
location as centralized within the piping system as
possible. The heater should be located in an area not
subject to freezing temperatures in any location
selected. It is recommended that a suitable drain pan be
installed under the water heater. This pan shall be a
minimum of 50mm (2 in.) deep and have a diameter that
is a minimum of 50mm (2 in.) greater than the diameter
of the water heater. Suitable piping shall connect the
drain pan to a properly operating floor drain.
I
II
III
SAFETY
PRODUCT SELECTION
PERFORMANCE
RATINGS/SPECS
IV INSTALLATION/PIPING
V
WIRING
VI MAINTENANCE
VII WARRANTY
Relief Valve Requirements
Caution: To reduce the risk of excessive pressures and
I Safety
I
SAFETY
The warranty on this water heater is in effect only when
the water heater is installed and operated in accordance
with these instructions. The manufacturer of this water
heater will not be liable for any injury or property
damage resulting from failure to comply with these
instructions.
WARNING! This water heater must be installed strictly in
accordance with the instructions enclosed, and local
electrical, fuel and building codes. It is possible that
connections to the water heater or the water heater
itself may develop leaks. IT IS THEREFORE IMPERATIVE that the water heater be installed so that any
leakage of the tank or related water piping is directed to
an adequate drain in such a way that it cannot damage
the building, furniture, carpeting, adjacent areas, lower
floors of the structure or other property subject to
water damage. This is particularly important if the
temperatures in this water heater, install temperature
and pressure protective equipment required by local
codes. It should be no less than a combination temperature and pressure relief valve certified by a nationally
recognized testing laboratory that maintains periodic
inspection of production of listed equipment or materialals, as meeting the latest edition of ANSI Z21.22:
Requirements for Relief Valves and Automatic Gas
Shut-off Devices for Hot Water Supply Systems. This
valve must be marked with a maximum set pressure not
to exceed the marked MAXIMUM working pressure of the
water heater (150 PSI). Install the valve into an opening
provided and marked for this purpose in the water
heater, and orient it or provide tubing so that any
discharge from the valve will exit only within 6 inches
above, or any distance below the structural floor and
cannot contact any live electrical part. The discharge
opening must not be blocked or reduced in size under
any circumstances. The end of the relief pipe opening
should terminate near a floor drain or other suitable
location not subject to blocking or freezing. DO NOT
thread, plug or cap the relief pipe opening.
DANGER
HOT
BURN
• Water temperatures over 125ºF can cause severe burns
instantly or death from scalds.
• Children, disabled, and elderly are at the highest risk of
being scalded.
• See instruction manual before setting temperature at water
heater.
• Feel water before bathing or showering.
• Temperature limiting valves are available, see manual.
NOTICE
The Techtanium Indirect-fired water heater is deemed to be used in a "commercial
setting" if at any time the unit is operated at a temperature over 150ºF. Refer to warranty
for additional information.
2 II
PRODUCT SELECTION/
II
Product
Selection
PERFORMANCE
1. The following g u ide line s apply to residential systems only. For commercial or institutional installations contact
the factory directly for assistance.
2. Determine the quantity of domestic hot water required. Factors to consider:
a. Estimate typical peak hour demand. Determine the general time of day (morning, noon, evening) when the
most hot water is used. Use chart below to determine potential maximum usage.
Estimate of Peak Domestic Hot Water Usage
Average Gallons of
Hot Water per Usage
Use
Shower
Bath
Shaving
Hands and Face Washing
Hair Shampoo
Hand Dish Washing
Automatic Dish Washing
Food Preparation
Wringer Clothes Washer
Automatic Clothes Washer
Times Used During
One Hour
Times Used During
One Hour
20
20
2
4
4
4
14
5
26
32
=
=
=
=
=
=
=
=
=
=
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Total Peak Hour Demand =
b. Estimate unusual peak draw demand. Whirlpool baths, hot tubs, and multiple head showers require large
quantities of hot water in a short period of time. Contact fixture manufacturer for quantity of water required.
Generally speaking, these circumstances can only be met with larger storage volumes.
c. Domestic Water Temperature. Most residential usage will be satisfied with 119ºF water, the temperature
setting recommended by the Consumer Product Safety Commission. Some applications s u c h as laundry and
dishwashers may require a higher temperature.
Ratings can be improved by increasing Techtanium thermostat setting and using a mixing valve to temper the
hot water to the proper temperature. When temperatures greater than 119ºF are required, use a mixing valve at
the outlet of the water heater or anti-scald fittings at point of use.
III Specifications and Performance
Units
MP Model
20
32
40
50
42.3
52.9
Tank Capacity
Gallons
21.2
31.7
Minimum Recommend Power
Btu/Hr.
75,000
95,000
Maximum Working Pressure
P.S.I.
150
150
150
150
Maximum Temperature
Degrees F
194
194
194
194
Weight (empty)
Pounds
74.8
99
112.2
136.4
Weight (full)
Pounds
251.4
363.1
464.6
577
3 115,000 140,000
Connection Diagram
Thermometer
Boiler Supply
Boiler Return
T&P Relief Valve
Hot Water Outlet
Cold Water Inlet
Boiler Return
Boiler Supply
Tank Thermostat
(located under cover)
Drain
Drain Valve
Front of Tank
Dimensions
A
B
MP 20 MP 32 MP 40 MP 50
A
22.4"
22.4"
22.4"
22.4”
B
31.1"
39½"
47.9"
56¾"
C
27.6"
36"
44.4"
53.2"
C
4 Pressure Drop Table
Primary Flow Rate
Model Number
5 GPM
8 GPM
12 GPM
Unit
MP 20
1.2
2.9
6.2
/ hd
MP 32
1.6
3.8
8.0
/ hd
MP 40
1.6
3.6
7.6
/ hd
MP 50
1.8
4.2
8.8
/ hd
Pressure Drop Graph
Pressure Drop Graph
Head Loss FT/HD
10.0
8.0
50
32
40
6.0
20
MP 20
4.0
MP 32
2.0
MP 40
-
MP 50
5 GPM
8 GPM
12 GPM
Primary Flow Rate
5
Performance Data MP 20
Con nuous Draw Ra ngs Based Upon Boiler’s Ability to Maintain 180º F Model MP 20 Circulator Flow GPM 5 5 8 8 12 12 DHW Temperature 120ºF 140ºF 120ºF 140ºF 120ºF 140ºF 45,000 76 56 76 56 Boiler 60,000 95 69 95 69 Hea ng 75,000 116 83 116 83 95,000 120 86 134 95 142 101 115,000 120 86 134 95 156 111 Btu/Hr. 140,000 134 95 156 111 Output 165,000 168 119 195,000 Capacity in Ra ngs based upon domes c cold water entering temperature of 58ºF Performance Data MP 32
Con nuous Draw Ra ngs Based Upon Boiler’s Ability to Maintain 180º F Model MP 32 Circulator Flow GPM 5 5 8 8 12 12 DHW Temperature 120ºF 140ºF 120ºF 140ºF 120ºF 140ºF 45,000 106 78 106 78 60,000 134 97 134 97 75,000 162 116 162 116 95,000 168 120 188 134 198 141 115,000 168 120 188 134 219 155 140,000 188 134 219 155 165,000 236 167 Boiler Hea ng Capacity in Btu/Hr. Output 195,000 6 Performance Data MP 40
Con nuous Draw Ra ngs Based Upon Boiler’s Ability to Maintain 180º F Model MP 40 Circulator Flow GPM 5 5 8 8 12 12 DHW Temperature 120ºF 140ºF 120ºF 140ºF 120ºF 140ºF 45,000 110 82 110 82 Boiler 60,000 138 101 138 101 Hea ng 75,000 166 120 166 120 95,000 172 124 192 138 202 145 115,000 172 124 192 138 223 159 Btu/Hr. 140,000 192 138 223 159 Output 165,000 240 171 Capacity in 195,000 Ra ngs based upon domes c cold water entering temperature of 58ºF Performance Data MP 50
Con nuous Draw Ra ngs Based Upon Boiler’s Ability to Maintain 180º F Model MP 50 Circulator Flow GPM 5 5 8 8 12 12 DHW Temperature 120ºF 140ºF 120ºF 140ºF 120ºF 140ºF 45,000 117 91 117 91 60,000 142 108 142 108 75,000 167 125 167 125 95,000 201 148 201 148 201 161 115,000 201 148 231 169 236 186 140,000 231 169 252 198 165,000 252 198 Boiler Hea ng Capacity in Btu/Hr. Output 195,000 7 IV Installation & Piping
The Loca on of the Techtanium heater: Locate the heater so that there is easy access to the control, piping, valves, drain and heater for future servicing and maintenance. The heater is to be kept in an area where it is not exposed to freezing tem‐
peratures. Also, the heater must be located in an area where a leak (eg. from the piping or fi ngs, from any tem‐
perature and relief valve discharge, or from the tank itself), will not cause personal harm or dam‐
age the surrounding area. The tank should be installed in an area with a floor drain or in a pan suitable for water heaters. Read the Installa on and Opera ng Instruc ons manual thoroughly. Follow recommended piping and wiring diagrams. Upon comple ng installa on, fill the tank with water. While filling it leave a hot water faucet open un l a steady stream of water is flowing. Then, shut the faucet and check for any leaks throughout the en re system. The Tank should be installed in an area with a floor drain or in a pan suitable for water heaters. DHT will not be held liable for any damages caused by water leakage. The floor or area where the tank is installed must be capable of suppor ng the tank when filled with water. (Refer to the Specifica ons Table on the page 3) FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of
this or any other appliance. Controls on this appliance could ignite vapors causing an explosion.
General: a. All plumbing must be in accordance with the requirements of the authority having jurisdic on. b. Use both thread tape and pipe dope on all mechanical connec ons. c. Zone valve (if used) and circulator must be sized to provide minimum flow rate specified in the table to the right, Flow Specifica ons. Use 1 inch nominal copper tubing for flows greater than 7 GPM be‐
tween the boiler and heat exchanger. See the tables on Fric on Loss. Point of emphasis: using a zone valve without a full bore may cause high pressure drop which will adversely affect performance. Use extreme care when selec ng zone valve. d. All piping must be adequately supported. e. Allow for thermal expansion. f. Dielectric Unions (recommended) ‐used to electrically isolate the Techtanium tank from the connect‐
ed domes c water piping. This helps to minimize the possibility of corrosion damage. 8 Flow Specifications
Flow Specifications
Model Number Recommended Flow Rate Heat Exchanger Pressure Drop ( . hd.) Domes c Water Connec on Sizes MP‐20 5 GPM 1.2 3/4” MP‐32 8 GPM 3.8 3/4” MP‐40 12 GPM 7.6 3/4” MP‐50 12 GPM 8.8 3/4” Friction Loss per 100’ of Tubing (psi)
Tubing Type Flow Rate 10 GPM Flow Rate 15 GPM Type K 3.1 psi 6.5 PSI Type L 2.7 psi 5.7 psi Type M 2.3 psi 4.7 psi Friction Loss Allowance for Copper Fittings (ft. of tubing)
Fi ng Wrought Cast 90º Elbow 1 4 45º Elbow 1 2 Tee—Run 1/2 1/2 Tee‐Branch 3 5 Long radius 90º Elbow 2 ‐ 180º Bend 2 ‐ Gate Valve ‐ 1 9 IV Installation/Piping
(cont’d)
Legend E
G
H
F
A
B
C
D
Domes�c Water: A Ball Valve—Typical B Dielectric Union—Suggested C Temperature & Pressure Relief Valve D Heat Trap Loop—Suggested E Thermosta�c Mixing Valve –Suggested F High Temperature Outlet G Mixed Temperature Outlet H Expansion Tank in Cold Water Supply Note: For drawing clarity, addiƟonal
isolaƟon valves and other accessories have
been omiƩed. Follow normal piping
pracƟces when installing tank.
F. Temperature & Pressure Relief Valve: (T&P) Install a T&P relief valve (long element type) into the separate tapping designated for the T&P valve. Install temper‐
A. Install isola�on valve between the water supply and ature and pressure protec�ve equipment required by the cold water inlet of the tank for ease of service. local codes, but no less than a combina�on tempera‐
B. Installing a heat trap in the domes�c hot water outlet ture and pressure relief valve cer�ed as mee�ng the piping will improve energy efficiency and reduce pip‐
requirements for relief Valve and Automa�c Shutoff ing heat loss. Devices for Hot Water systems, ANSI Z21.22, by a C. A Thermosta�c Mixing Valve is recommended and na�onally recognized tes�ng laboratory that main‐
may be required by local codes. The valve will blend tains periodic inspec�on of listed equipment or mate‐
the tank output water with cold water to achieve a rials. The valve must be oriented, provided with tub‐
more constant mixed temperature. The risk of scald‐
ing or otherwise installed so that discharge can exit ing is not eliminated by use of a mixing valve. Refer only within six (6) inches above, or at any distance to the installa�on instruc�ons provide by the mixing below, the structural oor, and cannot contact any valve manufacturer for proper installa�on. electrical part. The valve must be piped to an area D. Expansion Tank: When a back‐ow device or “no‐
where discharge will not cause personal injury or return” valve is installed in the piping system a Ther‐
damage the surrounding area. mal Expansion Tank designed for use in a domes�c hot water system will be required. Install the tank in the cold water piping close to the tank between the WARNING
tank and the back‐ow device. (see piping diagram) Install a T&P relief valve with a rated capacity equal
Refer to Thermal Expansion Tank manufacturer’s lit‐
or greater that the output of the energy source.
erature for sizing and installa�on informa�on. Removal of the T&P Valve or failure to replace the
E. Vacuum Breaker: DHT recommends that a vacuum valve will release the manufacturer from any claim
breaker be installed on the domes�c piping to the which might result from excessive
heater. The vacuum breaker protects the heater in temperatures and pressures
the event that the tank pressure falls below atmos‐
pheric pressure. 10 V Wiring
All wiring must be done in accordance with Na‐
�onal, State and local codes. Adhere to the Na‐
�onal Electric Code ‐ ANSI/NFPA 70‐1990 in the absence of any other codes. Power must be shut off before installing or servic‐
ing the heater. A separate shut off switch should be installed to support future servicing or an emergency shutdown. The en�re hea�ng system should have its own designated electrical circuit. The Techtanium heater operates in much the same way as an addi�onal hea�ng zone, either u�lizing the same circulator as household hea�ng or its own circulator. The heater temperature is maintained by the use of an immersion type aq‐
uastat. The aquastat is installed into the im‐
mersion well on the heater. The aquastat operates in much the same way as a thermostat. When the temperature falls inside the tank the set of contacts make (close) and when the temperature rises the contacts break (open). The aquastat should be �ed into the boiler sys‐
tem and controls. When the tank calls for heat the aquastat contacts close and signal the boiler con‐
trols, allowing the boiler to maintain temperature and proper opera�on of the tank circulator. DHT recommends the use of a priority control to help the boiler maintain desired temperature and sa�sfy the tank's BTU requirements. The Techtanium heater recovery ra�ngs are based on the boiler's ability to maintain 180 degrees Fahrenheit. It is important that the installer, plumber or hea�ng technician responsible for installing the heater, make certain that the boiler capacity (BTU) is adequate to sa�sfy the heater's BTU requirements. Water temperature over 125ºF can cause severe burns instantly or death from scalds. Children, disabled and elderly are at highest risk of being scalded. See instruc�on manual before se�ng temperature at water heater. Feel water before bathing or showering. Temperature limi�ng valves are available, see manual. 11 Wiring
andThermostat
Thermostat
Setting
Wiring and
Setting
Wiring:
Wiring: The thermostat is rated for 15 amps. Follow the wiring instruc�ons in sec�on V pages pages
The thermostat
thermostatisis
israted
ratedfor
for15
15amps.
amps.Follow
Followthe
thewiring
wiringinstruc�ons
instructions
section
pages
rated
for
15
amps.
Follow
the
wiring
instruc
Wiring: The
ons in
ininsec�on
sec
on VV V
pages
16 in
in this
manual.Terminals
TerminalsCCC&
&22
are two
normally
open
andare
close
(make)
on temperature
11 to 16 in this manual. Terminals C & 2 (the two brown wires) are normally open and close 11
wires)
normally
open
and
11 to
to 16
this manual.
manual.
Terminals
&
11(the
(the
two brown
brown
wires)
are
normally
open
and close
close
decrease.
to most
water heater
or controls.
contacts
open
(break)
on
(make)
(make) on temperature decrease. Similar to most water heater aquastats or controls. The con‐
temperature
decrease.
Similar
to
heater
aquastats
or
The
(make) on
onSimilar
temperature
decrease.
Similaraquastats
to most
most water
water
heaterThe
aquastats
or controls.
controls.
The con‐
con
temperature
rise
–
when
the
tank
reaches
the
set
temperature.
Connect
system
wires
to
wirtacts
tacts open (break) on temperature rise – when the tank reaches the set temperature. Connect open
(break)
on
temperature
rise
–
when
the
tank
reaches
the
set
temperature.
Connect
tacts open (break) on temperature rise – when the tank reaches the set temperature. Connect
ing
block
located
underblock
cover.
system
system wires to wiring block located under cover. wires
to
located
system
wires
to wiring
wiring
block
located under
under cover.
cover.
Auxiliary
Auxiliary contacts: Terminals C & 1 (purple & brown) for solar, hea�ng or other applica�ons are (purple
brown)
for
solar,
hea�ng
applica�ons
solar,&
other
applications
are
normally
Auxiliary contacts:
contacts: Terminals
TerminalsCC&&211 for
(purple
&heating
brown)or
for
solar,
hea ng or
or other
other
applicaclosed
ons are
are
normally
normally closed and open (break) on temperature decrease. This opera�on is opposite most decrease.
opera�on
opposite
most
and
openclosed
(break)and
on open
temperature
decrease.
This operation
isThis
opposite
water
heaters
and
normally
closed
and
open (break)
(break) on
on temperature
temperature
decrease.
This
operamost
on isis
opposite
most
should
only beand
usedshould
for auxiliary
water
water heaters and should only be used for auxiliary equipment. only
used
water heaters
heaters
and
should
only be
beequipment.
used for
for auxiliary
auxiliary equipment.
equipment.
Set
Set the temperature by rota�ng the screwdriver slot to align with the desired se�ng. Please Set the
the temperature
temperature by
by rota�ng
rota ng the
the screwdriver
screwdriver slot
slot to
to align
align with
with the
the desired
desired se�ng.
se ng. Please
Please
refer
refer to the instruc�on manual for cau�onary informa�on regarding water temperature safety. refer to
to the
the instruc�on
instruc on manual
manual for
for cau�onary
cau onary informa�on
informa on regarding
regarding water
water temperature
temperature safety.
safety.
It
It is important to check the output temperature of any water heater with a thermometer to It isis important
important to
to check
check the
the output
output temperature
temperature of
of any
any water
water heater
heater with
with aa thermometer
thermometer to
to
insure
insure that the se�ng is correct. correct.
insure that
that the
the se�ng
se ng isis correct.
In
In accordance with local and na�onal plumbing codes it is highly recommended that a thermo‐
In accordance
accordance with
with local
local and
and na�onal
na onal plumbing
plumbing codes
codes itit isis highly
highly recommended
recommended that
that aa thermo‐
thermo
sta�c
sta�c mixing valve be used to protect the user from poten�al hazard due to spikes in tempera‐
sta c mixing
mixing valve
valve be
be used
used to
to protect
protect the
the user
user from
from poten�al
poten al hazard
hazard due
due to
to spikes
spikes in
in tempera‐
tempera
ture. ture.
ture.
Note:
Note:
For
For use
use with
with aa tank
tank sensor,
sensor, remove
remove the
the tank
tank thermostat
thermostat capillary
capillary (black
(black coated)
coated) and
and insert
insert the
the
sensor
sensor recommended
recommended by
by your
your control
control or
or boiler
boiler manufacturer
manufacturer (usually
(usually 10
10 KK ohms)
ohms) into
into the
the well.
well.
Normally
Closed
1
Normally
Open
2
Brown
Brown
Wires
Wires
Connect
here
Connect wires
wires here
here
Ground
Common
Purple
Wire
G
Brown
Wire
C
Important
Notes
Important Notes
CAUTION: CAUTION:
When
insure
CAUTION: When using the op�onal wall bracket (verƟcal
When using
using the
the op�onal
op onal wall
wall bracket
bracket (verƟcal
(ver cal posiƟon
posi on only)
only) insure that the wall and insure that
that the
the wall
wall and
and
fasteners are capable of suppor�ng the weight of the tank when lled with water (see page 3, Sec�on fasteners
the weight
weight of
of the
the tank
tank when
when lled
lled with
with water
water (see
(see page
page 3,
3, Sec�on
Sec on
fasteners are
are capable
capable of
of suppor�ng
suppor ng the
III
III for weights). Refer to the bracket installa�on instruc�ons included with the op�onal bracket. for
weights).
Refer
to
the
bracket
installa�on
instruc�ons
included
with
the
op�onal
bracket.
III for weights). Refer to the bracket installa on instruc ons included with the op onal bracket.
16
12 16
Tankless Coil Boiler Application - Priority Figure 3a.
Opera�on: When any thermostat calls for Jumper Placement: REMOVE the jumper heat, the boiler is given a signal to start. The between terminals ZC and ZR. Connect termi‐
appropriate circulator is energized only when nal ZC to ZC terminal on the aquastat control. the boiler temperature is above the low limit. Connect terminal ZR to ZR terminal on the aquastat control. Conrm polarity is con‐
sistent between the boiler aquastat and the Priority Opera�on: When Zone 6 is switched to the priority se�ng and is ac�vat‐ switching relay. ed, all other zones will stop opera�on un�l Power input: Connect 120 volt as power zone 6 is sa�sed. When Zone 6 is not input to terminals N and H. Neutral wire to switched to priority, all zones will operate terminal N. Hot wire to terminal H. independently. 13 Cold Start Boiler Application - Priority Figure 3b.
Opera�on: When any thermostat calls for Jumper Placement: The jumper should heat, appropriate circulator is energized and be placed between terminals ZC and ZR. Con‐
the isolated end switch (X‐X) will start the nect the isolated end switch to the aquastat boiler. on the boiler Priority Opera�on: When Zone 6 is Power input: Connect 120 volt as power switched to the priority se�ng and is ac�vat‐ input to terminals N and H. Neutral wire to ed, all other zones will stop opera�on un�l terminal N. Hot wire to terminal H. zone 6 is sa�sed. When Zone 6 is not switched to priority, all zones will operate independently. 14 Wiring Diagrams
15 Wiring Diagrams
16 VI Maintenance
To ensure efficient and safe opera on, DHT recom‐
mends the servicing of the heater by a competent ser‐
vice technician. Magnesium ‐ An ‐Corrosion Anodes (No longer than every 12 months) Removal of the anodes: Lime or Sediment Buildup (Every 6 months) To reduce the buildup of lime or sediment it is recom‐
mended that the tank be flushed every six months. 1.
Drain the tank through the drain valve at the
bo om of the tank un l the water is clear.
1.
Shut off all power to the heater.
2. Close the domes c cold water supply valve.
3. Open the household hot water taps.
2. Inspect the tank for any deposits of lime or sediment. 4. A ach a hose to the drain valve located at the
bo om of the heater and allow the heater to drain. 3. Remove lime, scale or deposits using care not to
damage the tank lining. 5. Unscrew the anodes.
EXAMINE THE ANODES AND REPLACE IF THEY SHOW
Temperature & Pressure Relief Valve (Every 12 SIGNS OF DETERIORATION. months) 1. Before manually tes ng the T & P valve, make sure 6. Replacement of the Anodes ‐‐ The use or P.T.F.E. tape
the valve is piped in a manner that will not cause is recommended to ensure water ght connec on of the harm or damage any surrounding area. anodes. 2. Manually open the relief valve and allow it to flush
out any lime or sediment deposits. Failure to inspect the anodes may result in
premature failure of the heater and could
void the warranty.
3. Allow the relief valve to snap shut, making sure the
seal closes properly. Owner Informa on Model Number: _______________________________ Serial Number: _______________________________ Installa on Date: ______________________________ Wholesaler: _________________________________________________________________________________ Original Owner Name: _________________________________________________________________________ Address: ____________________________________________________________________________________ City: _______________________________________ State: __________________________________________ Zip Code: __________________________________ Addi onal Informa on: ____________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ 17 VII Warranty
DIVERSIFIED HEAT TRANSFER, INC.
INDIREC T WATE R HE ATERS
LIMITED WARRANTY FOR DIVERSIFIED HEAT TRANSFER, INC. TECHTANIUM™ INDIRECTFIRED WATER HEATER
Your Techtanium™ indirect-fired water heater is protected by
these warranties. These warranties are applicable to original
residential or commercial purchasers only.
THE FOLLOWING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF ANY AND ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, AND ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOT
ARISING FROM DIVERSIFIED HEAT TRANSFER’S NEGLIGENCE, ACTUAL OR IMPUTED.
THE REMEDIES OF THE ORIGINAL PURCHASER SHALL BE LIMITED TO THOSE PROVIDED HEREIN TO THE EXCLUSION OF ANY OTHER
REMEDIES INCLUDING WITHOUT LIMITATION, SPECIAL, INDIRECT, INCIDENTAL AND/OR CONSEQUENTIAL DAMAGES INCLUDING,
BUT NOT LIMITED TO PROPERTY DAMAGE, LOST PROFIT, OR DAMAGES ALLEGED TO HAVE BEEN CAUSED BY ANY FAILURE OF
DIVERSIFIED HEAT TRANSFER TO MEET ANY OBLIGATION UNDER THIS AGREEMENT INCLUDING THE OBLIGATION TO REPAIR AND
REPLACE SET FORTH BELOW.
NO AGREEMENT VARYING OR EXTENDING T H E FOREGOING WARRANTIES, REMEDIES, OR THIS LIMITATION WILL BE BINDING UPON
DIVERSIFIED HEAT TRANSFER UNLESS IN WRITING AND SIGNED BY A DULY AUTHORIZED OFFICER OF DIVERSIFIED HEAT
TRANSFER. DIVERSIFIED HEAT TRANSFER DOES NOT ASSUME OR AUTHORIZE ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER
LIABILITY IN CONNECITON WITH THE SALE OF ITS PRODUCTS.
THIS WARRANTY EXTENDS ONLY TO THE FIRST (ORIGINAL) RETAIL PURCHASER OF THE TANK AND ONLY WHILE THE TANK IS
OWNED BY THAT PURCHASER AND REMAINS AT ITS ORIGINAL LOCATION. CHANGE IN OWNERSHIP OR RELOCATION OF THE
TANK SHALL FOREWITH TERMINATE THIS WARRANTY WITHOUT FURTHER NOTICE.
WARRANTY COVERAGE FOR RESIDENTIAL
USAGE - 7 YEARS
The Warranties listed in this section shall apply to Diversified Heat Transfer Techtanium™ indirect-fired water heaters used in a
residential setting by original purchasers only. A “residential setting” as used herein shall mean usage either (a) in a single family
dwelling in which the original consumer purchaser of the indirect-fired water heater resides on a permanent basis or (b) in a
multiple family dwelling provided that such Techtanium indirect-fired water heater services only one family unit in a multiple
family dwelling; provided that the term “residential setting” shall not include any usage of the Techtanium indirect-fired water
heater above 150 degrees Fahrenheit.
During the specified warranty period of the indirect-fired water heater, Diversified Heat Transfer Inc., will repair or replace, at its
option, without charge, any indirect-fired water heater having a defect or malfunction that results in a water leak from the outside
jacket, inner tank, or heat exchanger as a result of normal use and service. It is expressly agreed between Diversified Heat Transfer
and the original residential purchaser that repair or replacement is the exclusive and sole remedy of the original purchaser.
Any claim under this warranty must be verified by an authorized Diversified Heat Transfer (also referred to as DHT ) representative: if
the claim is found to be valid, DHT will repair or replace the tank as set forth herein, within a reasonable time after verification. If DHT
chooses in its discretion to repair any indirect-fired water heater for which there is a valid warranty claim, DHT shall provide parts that
are compatible with the subject indirect-fired water heater, which parts need not be identical to the original. If DHT chooses, in its
discretion, to replace any indirect-fired water heater for which there is a valid warranty claim, DHT shall replace the subject indirectfired water heater with the same model or, if such model is not available, with a model which is, in DHT’s reasonable judgment, the
nearest compatible model available at the time of replacement. Removal of the Techtanium water heater and replacement with a
different brand will fully invalidate this warranty coverage.
If Diversified Heat Transfer is unable to repair or replace or otherwise comply with its liability under these warranties, after a
reasonable number of attempts, then the original consumer purchaser’s sole and exclusive remedy for such breach shall be either
a replacement product or a full refund of the purchase price (exclusive of freight, labor and installation), as determined by
Diversified Heat Transfer.
If the original purchaser cannot provide proof of purchase than DHT may request proof of residency dating back to the date of
manufacture of the tank. In such case the warranty period will begin from the date of manufacture as determined by the tank serial
number.
WARRANTY COVERAGE FOR COMMERCIAL
USAGE - (THREE YEARS)
18
VII Warranty
REPLACEMENT TANK - WARRANTY RESIDENTIAL OR COMMERCIAL APPLICATION
For either a residential or commercial application, the following applies to both when a replacement tank is provided for a tank found to be under warranty.
The replacement tank warranty assumes the remaining warranty period left from the original tank purchased.
WHAT IS NOT COVERED BY EITHER OF THESE WARRANTIES
These warranties are void and shall not apply under the following circumstances:
1. The Techtanium™ water heater was not installed or repaired by a heating contractor whose principal occupation is the sale, installation and repair of
plumbing, heating and/or air conditioning equipment.
2. These warranties cannot be considered as a guarantee of workmanship of an installer connected with the installation of the Techtanium water heater, or
as imposing on Diversified Heat Transfer liability of any nature for unsatisfactory performance as result of faulty workmanship in the installation or repair
which liability is expressly disclaimed.
3. The failure or malfunction results from improper or negligent operation, abuse, misuse or maintenance or unauthorized alteration.
4. Malfunctions resulting from, or repairs necessitated by, uses of the indirect-fired water heater for purposes other than that for which it was designed, or
resulting from flood, fire, wind, lightning, freezing or any other natural disaster or act of God, an act of destruction, theft or accident.
5. The original serial number on the indirect-fired water heater or component thereof cannot be readily determined.
6. Any indirect-fired water heater is installed in a setting containing any type of water softener system that is not installed and maintained in accordance
with the manufacturer’s specifications.
7. The Techtanium indirect-fired water heater is used for non-potable applications such as pool or process heating.
8. The failure or malfunction results from failure to keep the tank full of potable water, free to circulate at all times and with the tank free of damaging water
sediment or scale deposits.
9. Components of an indirect-fired water heater which are not defective, but must be replaced during the warranty period as a result of reasonable wear
and tear.
10. Techtanium indirect-fired water heaters which are repaired or altered without prior written approval of Diversified Heat Transfer so as to affect adversely
their reliability.
11. Diversified Heat Transfer Techtanium™ indirect-fired water heaters installed outside of the United States and Canada.
12. Service calls not involving any malfunction or defects and maintenance in the ordinary course.
13. Components of an indirect-fired water heater which are not manufactured expressly for Diversified Heat Transfer; such components are subject only to
those warranties, if any, given by their manufacturers. Diversified Heat Transfer does not adopt and has no responsibility for those warranties.
14. Any Techtanium tank that does not have installed a new temperature and pressure relief valve bearing the American Society of Mechanical Engineers
(A.S.M.E.) listing at the time of installation.
FURTHER LIMITATIONS OF WARRANTIES AND REMEDIES
These warranties give you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so this limitation or exclusion may not apply to you.
These are the only written warranties applicable to Diversified Heat Transfer Techtanium™ indirect-fired water heaters manufactured for and sold by
Diversified Heat Transfer. Diversified Heat Transfer neither assumes nor authorizes anyone to assume for it any other obligation or liability in connection with
said Techtanium indirect-fired water heaters.
This warranty does not cover expenses or labor for disassembly, removal, shipment reassembly or reinstallation; the original purchaser will be
responsible for such costs.
Diversified Heat Transfer’s performance under these warranties may be contingent on shipment of components or equipment from suppliers. Diversified
Heat Transfer shall not be liable for any failure or delay in delivery due to any cause beyond its control including without limitation, strike, labor stoppage, a
natural disaster (such as earthquake, flood, fire or storm), political insurrection or the unavailability of components, equipment or supplies.
MAKING A WARRANTY CLAIM
TO FILE A CLAIM UNDER THESE WARRANTIES CONTACT DIVERSIFIED HEAT TRANSFER INC. AT THIS ADDRESS:
439 MAIN ROAD, TOWACO, NEW JERSEY 07082 OR CALL DIVERSIFIED HEAT TRANSFER AT (800) 221-1522 AND ASK FOR CUSTOMER SERVICE.
At the time a claim is filed, the original purchaser must present a copy of the original sales receipt, installation bill, proof of delivery or equivalent
documents evidencing both ownership of the Techtanium™ indirect-fired water heater and installation in the dwelling or commercial property owned by the
original purchaser
This warranty is to be governed by and construed in accordance with the laws of the State of New York without regard to the principles of conflict of laws.
DIVERSIFIED HEAT TRANSFER RESERVES THE RIGHT TO CHANGE SPECIFICATIONS OR DISCONTINUE MODELS WITHOUT NOTICE.
19
INDIRECT WATER HEATERS
Wall
Installation
Instructions
INDIRECT
WATER
WATER
HEATERS
HEATERS
Wall Mount
MountINDIRECT
Installation
Instructions
Optional
Optional
Optional Wall Mount Installation Instructions
MP
20,
MP
32,
MP
40,
MP
50
Models
INDIRECT
WATER
HEATERS
MP
20,
MP
32,
MP
40,
MP
Models
MP 32,
MP
40, MP 50
50
Models MP
Installation
Installation
& Operating
&20,
Operating
Instructions
Instructions
Models
Models
MPMP
20,20,
MPMP
32,
32,
MPMP
4040
& MP
& MP
5050
WARNING
WARNING
WARNING
TO
THE
TO THE
INSTALLER:
INSTALLER:
This This
manual
manual
is is
Tank may only be installed
the
upright
posi�on
thein
property
the
property
of the
ofver�cal
owner
the owner
and
and
Tank may only be installed in the upright ver�cal posi�on Tank
may
only
be installed
inmust
the
upright
ver�cal
posi�on
be
affixed
be
affixed
near
near
the
water
the
water
Before a�emp�ng
a wall
mounted
installa�on
of the MP must
tank insure
that
the
selected
wall
will have
the
ability to withstand the
Before a�emp�ng a wall mounted installa�on of the MP tank insure that the selected wall will have the ability to withstand the full tanka�emp�ng
weight as specied
below.installa�on of the MP heater
heater
for
future
for
future
reference.
reference.
Before
a wall mounted
tank insure
that the
selected
wall will
have the ability to withstand the
full tank weight as specied below. full
tank weight
as specied
Securely
fasten the
bracketsbelow.
according to the model and dimensions in the diagrams below. When fastening the brackets to the
Securely fasten the brackets according to the model and dimensions in the diagrams below. When fastening the brackets to the wall
makefasten
sure to
appropriate
fasteners
of suppor�ng
weight
as
specied
below.
TO THE
TOthe
OWNER:
THE
OWNER:
Thisbelow.
water
This
water
heater
heater
Securely
theuse
brackets
according
to thecapable
model and
dimensions
in full
thetank
diagrams
When
fastening
the brackets to the
wall make sure to use appropriate fasteners capable of suppor�ng the full tank weight as specied below. wall
make
usetank
appropriate
capable
suppor�ng
the
full
tankinspected
weightannually
as specied
below.
should
should
beposi�on.
inspected
be
annually
by
a by a
Please
notesure
thattothe
may onlyfasteners
be installed
in theofupright
ver�cal
Please note that the tank may only be installed in the upright ver�cal posi�on. qualied
qualied
Service
Service
Agency.
Agency.
Please
that the
mayinstruc�ons
only be installed
ver�cal
posi�on.
Follow note
the piping
andtank
wiring
found in the upright
installa�on
manual.
Follow the piping and wiring instruc�ons found in the installa�on manual. Follow the piping and wiring instruc�ons found in the installa�on manual.
WARNING
WARNING
Improper
Improper
installa�on,
installa�on,
adjustment,
adjustment,
altera�on,
altera�on,
serviceservice
or maintenance
or maintenance
can cause
can cause
injury injury
or
or
MP
20
6ºî
property
property
damage.
damage.
Refer to
Refer
thistomanual.
this manual.
For For
MP 20 6ºî assistance
assistance
or
addi�onal
or
addi�onal
informa�on,
informa�on,
consult
consult
MP 20
6ºî
32 14Ωî
MP 32 14Ωî a qualied
a qualied
Installer
Installer
or Service
or Service
Agency.
Agency.
MP 32
40 14Ωî
22Ωî
MP 40 22Ωî MP 40
50 22Ωî
30 Ωî
MP 50 30 Ωî MP 50 30 Ωî
FORFOR
YOUR
YOUR
SAFETY
SAFETY
17ºî
MP Model
MP Model
Weight (empty)MP Model
Weight (empty)
(full)
Weight (empty)
Weight (full)
Weight (full)
Do notDo
store
not or
store
useor
gasoline
use gasoline
or17ºî other
or other
amma‐
amma‐
17ºî
ble vapors
ble vapors
and liquids
and liquids
in the in
vicinity
the vicinity
of thisof
orthis or
any other
any appliance.
other appliance.
Installa�on
Installa�on
and service
and service
Units
20
32
40
50
mustUnits
be
must
performed
be performed
by a qualied
by a32qualied
Installer
Installer
or
or
20
40
50
20
32
40
50
Service
Service
Agency.
Agency.
PoundsUnits
74.8
99
112.2
136.4
Pounds
Pounds
Pounds
Pounds
74.8
251.4
74.8
251.4
251.4
99
363.1
99
363.1
363.1
112.2
464.6
112.2
464.6
464.6
NEW JERSEY HEADQUARTERS • 439 MAIN ROAD, TOWACO, NJ 07082
PHONE: 800-221-1522 • WEBSITE: WWW.DHTNET. COM
Manufacturers and Designers Since 1938
136.4
577
136.4
577
577