Nordic R-Series Manual

02 JAN 2014 Page 1 001200MAN-05
Maritime Geothermal Ltd.
P.O. Box 2555
Petitcodiac, N.B. E4Z 6H4
Ph. (506 756-8135
R-Series
Slim Design
Two-Stage R410a
Model Sizes 25-80
Email: [e-mail]
Web: www.nordicghp.com
Document Number: 001200MAN-05
ECO 000212
DATE : 02 JAN 2014
Liquid to Air Geothermal Heat Pumps
Installation and Service Manual

Page 2 001200MAN-05 02 JAN 2014
SAFETY PRE AUTIONS
WARNING: Ensure all access panels are in place and properly secured before applying power to the unit.
Failure to do so may cause risk of electrical shock.
WARNING: Before performing service or maintenance on the heat pump system, ensure all power sources
are DIS ONNE TED. Electrical shock can cause serious personal injury or death.
WARNING: Heat pump systems contain refrigerant under high pressure and as such can be hazardous to
work on. Only qualified service personnel should install, repair, or service the heat pump.
CAUTION: Safety glasses and work gloves should be worn at all times whenever a heat pump is serviced. A
fire extinguisher and proper ventilation should be present whenever brazing is performed.
CAUTION: Venting refrigerant to atmosphere is illegal. A proper refrigerant recovery system must be
employed whenever repairs require removal of refrigerant from the heat pump.
! !
Series:
R = Active Cooling Liquid to Air
MODEL NOMEN LATURE
Nominal Size:
25 = 2 Ton
45 = 3 Ton
55 = 4 Ton
65 = 5 Ton
75 = 6 Ton
80 = 6 Ton Single Stage
Functions:
H = Heating
AC = Active Cooling
= Domestic Hot ater
Refrigerant:
P = R410a
Voltage ode:
1 = 230-1-60 VAC
2 = 208-3-60 VAC
6 = 220-1-50 VAC
7 = 380-3-50 VAC
Outdoor Loop Exchanger:
C = Copper
Z = Cupro-Nickel (CuNi)
Air oil:
S = Standard
Fan Type:
D = Direct Drive
Fan Motor:
E = ECM (Variable Speed)
Fan Return Orientation:
L = Left Return
R = Right Return
Fan Outlet Orientation:
D = Down flow
F = Field Configurable
Revision:
01, 02 etc.
R—65—HACW—P—1T—C—SDERF—xx
ompressor Stages*:
S = 1 Stage
T = 2 Stage
* 2 stage unless unavailable
due to voltage code, refer to
the Electrical Tables.

02 JAN 2014 Page 3 001200MAN-05
APPLICATION TABLE
SIZE FUNCTION REFRIGERANT VOLTAGE COMPRESSOR
STAGES*
OUTDOOR
COIL
FAN/CASE REVISIONS
25 HACW P
1 T
C
Z
SDELF
SDERF
09
2 T 09
6 T 09
T 09
45 HACW P
1 T
C
Z
SDELF
SDERF
09
2 T 09
6 S 09
T 09
55 HACW P
1 T
C
Z
SDELF
SDERF
09
2 T 09
6 S 09
T 09
65 HACW P
1 T
C
Z
SDELF
SDERF
09
2 T 09
6 S 09
T 09
5 HACW P
1 T
C
Z
SDELF
SDERF
09
2 T 09
6 S 09
T 09
80 HACW P
1 S
C
Z
SDELF
SDERF
09
2 S 09
S 09
This manual applies only to the models and revisions listed in this table
* T = Two Stage, S = Single Stage
Maritime Geothermal Ltd. has a continuous improvement policy and reserves the right to modify specification
data at any time without prior notice .

Page 4 001200MAN-05 02 JAN 2014
TABLES, DIAGRAMS & DRAWINGS: ...... PAGE 5
INSTALLATION INFORMATION: .... PAGE 6
Unit des ription: ..... Page 6
Unpa king the unit: ... Page 6
Optimum Pla ement: . Page 6
Ele tri al Conne tions:  Page 6
Control Transformer : ..... Page 6
Cir ulator Pump Module Wiring (Ground Loop Only): . Page 6
Thermostat Requirements: .. Page 7
Fan Motor:  Page 7
Fan Return Orientation: ... Page 7
Fan Outlet Orientation : ... Page 7
Safety Controls: . Page 7
Domesti Hot Water Conne tions (HACW only): .. Page 8
SIZING AND DUCTWORK: ... PAGE 11
Heat Pump Sizing: . Page 11
Du t Systems - General: .. Page 11
Du t Systems - Grill Layout:  Page 11
Thermostat Lo ation:  Page 12
Plenum Heater (Optional):  Page 12
Condensate Drain: .. Page 12
Du t Sizing Guide: . Page 14
GROUND WATER SYSTEM INFORMATION:  PAGE 15
General Requirements: . Page 15
Plumbing the Heat Pump: . Page 15
Pipe Insulation:  Page 15
Water Dis harge Methods:  Page 15
GROUND LOOP SYSTEM INFORMATION: .. PAGE 18
Cir ulator Pump Module: . Page 18
Flushing & Purging the Ground Loop: . Page 18
Adding Antifreeze Solution:  Page 19
Initial Pressurization:  Page 19
Pipe Insulation: .. Page 19
STARTUP PROCEDURE: . Page 21
Pre-start Inspe tion: . Page 21
Unit Startup: ... Page 22
Startup Re ord: .. Page 23
GENERAL MAINTENANCE: .... PAGE 24
TROUBLESHOOTING GUIDE: . PAGE 25
Repair Pro edures:  Page 34
MODEL SPECIFIC INFORMATION: ... PAGE 35
Refrigerant Charge Chart:  Page 35
Shipping Information: ... Page 35
Standard Capa ity Ratings: ... Page 35
Capa ity Ratings: ..... Page 37
Ele tri al Tables:  Page 43
Ele tri al Diagrams: .. Page 45
Refrigeration Cir uit Diagrams: . Page 49
Case Details: ... Page 51
APPENDIX A: Control Board Spe ifi ations:  PAGE 57
APPENDIX B: ECM Fan Airflow Tables: . PAGE 58
WARRANTY INFORMATION: .. PAGE 60
Table of Contents

02 JAN 2014 Page 5 001200MAN-05
Tables, Diagrams and Drawings
TABLES
Table 1 - Power Supply Conne tions (Heat Pump): ............ Page 6
Table 2 - Power Supply Conne tions (Optional Plenum Heater): ........... Page 6
Table 3 - Control Signal Des ription: ....... Page 7
Table 4 - Airflow Sele tions: ... Page 7
Table 5 - Control Board Fault Codes: ...... Page 8
Table 6 - Heat Pump Size vs. Heated Area for Ground Loop Systems: ..... Page 11
Table 7 - Heat Pump Size vs. Heated Area for Ground Water Systems: .... Page 11
Table 8 - Heat Pump Size vs. Hot Air Grills: ...... Page 12
Table 9 - Plenum Heater Sizing: ....... Page 12
Table 10 - Du t Sizing Guide: ...... Page 14
Table 11 - Required Flow and Air Tank Sizing: ...... Page 15
Table 12 - Antifreeze Per entages by Volume: ..... Page 19
Table 13 - Volume of Fluid per 100ft. Of Pipe: ...... Page 19
Table 14 - Refrigerant Charge Chart: ......... Page 35
Table 15 - Shipping Information: .......... Page 35
Table 16 - Standard Capa ity Ratings - Ground Loop Heating 60Hz: ..... Page 35
Table 17 - Standard Capa ity Ratings - Ground Water Heating 60Hz: .... Page 35
Table 18 - Standard Capa ity Ratings - Ground Loop Cooling 60Hz: ..... Page 36
Table 19 - Standard Capa ity Ratings - Ground Water Cooling 60Hz: ....... Page 36
Table 20 - Heat Pump Ele tri al Information (208/230-1-60): ........ Page 43
Table 21 - Heat Pump Ele tri al Information (208-3-60): ....... Page 43
Table 22 - Heat Pump Ele tri al Information (460-3-60): ....... Page 43
Table 23 - Heat Pump Ele tri al Information (220-1-50): ....... Page 43
Table 24 - Heat Pump Ele tri al Information (380-3-50): ....... Page 44
Table 25 - Plenum Heater Ele tri al Information (208/230-1-60): ..... Page 44
DIAGRAMS
Diagram A - Typi al P/T (Pete’s) Plug & Thermometer Stem: ...... Page 18
Diagram B - Typi al Purge Cart:  Page 18
Case Details - Left Return - Size 25 to 75: ......... Page 51
Case Details - Right Return - Size 25 to 75: ......... Page 53
Case Details - Left Return - Size 80: ........... Page 55
Case Details - Right Return - Size 80: ............ Page 56
DRAWINGS
001827CDG - Typi al Thermostat Conne tions: ... Page 9
000970PDG - Single Unit Conne tion to DHW Pre-Heat Tank (Brass FPT): .. Page 10
001201CDG - Typi al Du t and Condensate Conne tions (Modular Case): . Page 13
000907CDG - Typi al Ground Water Installation for Size 25-75 Heat Pumps (Brass FPT): .. Page 16
000619INF - Ground Water Disposal Methods:  Page 17
000906CDG - Geo-Flo Cir ulator Pump Module Installation (Brass FPT):  Page 20
001754SCH-01 - R-25-75-HAC*-P-1*-*-*DE** S hemati Diagram: ..... Page 45
001755ELB-01 - R-25-75-HAC*-P-1*-*-*DE** Ele tri al Box Diagram: ..... Page 46
001135SCH-03 - R-**-HAC*-P-1*-*-*DE** S hemati Diagram: ...... Page 47
001136ELB-03 - R-**-HAC*-P-1*-*-*DE** Ele tri al Box Diagram: .... Page 48
001207RCD - R(H)-Series Refrigeration Cir uit Diagram—Heating Mode: . Page 49
001208RCD - R(H)-Series Refrigeration Cir uit Diagram—Cooling Mode: . Page 50

Page 6 001200MAN-05 02 JAN 2014
UNIT DESCRIPTION
The R-Series unit is a high efficiency two-stage geother-
mal heat pump. Two-stage units offer longer runtimes and
fewer cycles resulting in higher efficiency and a higher comfort
level. The heat pump contains environmentally friendly R4 0a
refrigerant.
An electrically commutated (ECM) fan with several speed
options is standard. The motor has a soft start function for im-
proved efficiency and reduced wear.
The unit has several key features that are described in the
specifications document for the particular heat pump. Please
request a copy if desired or visit www.nordi ghp. om
UNPACKING THE UNIT
When the heat pump reaches its destination it should be
unpacked to determine if any damage has occurred during
shipment. Any visible damage should be noted on the carrier's
freight bill and a suitable claim filed at once.
The heat pump is well constructed and every effort has
been made to ensure that it will arrive intact, however it is in the
customer's best interest to examine the unit thoroughly when it
arrives.
OPTIMUM PLACEMENT
For liquid to air units, to achieve the greatest efficiency, the
heat pump should be centrally located in the home with respect
to the conditioned space. This design provides the utmost in
economy and comfort and usually can be accomplished in
harmony with the design of the home. A heating system cannot
be expected to produce an even warmth throughout the
household when it is located at one end of the structure and the
warm air is transmitted with uninsulated metal ductwork.
If possible the access panels should remain clear of
obstruction for a distance of two feet to facilitate servicing and
general maintenance.
Raising the heat pump off the floor a few inches is generally
a good practice since this will prevent rusting of the bottom
panel of the unit. We recommend that the heat pump be placed
on a piece of 2'' thick styrofoam. The styrofoam will smooth out
any irregularities in the cement floor and deaden any
compressor noise emitted from the bottom of the cabinet.
The heat pumps come equipped with an air-filter rack which
can be installed with the removable end (where the filter is in-
serted) on either side to facilitate changing the filter.
ELECTRICAL CONNECTIONS
The heat pump has a concentric .093” / 0.875” knockout
for power supply connection to the electrical box, as well as one
for connection to the circulator pump module for ground loop
applications. There are two /2” openings with plastic grom-
mets (grommet hole is 3/8”) in the upper section of the electrical
box, one for the thermostat connections, and one for the op-
tional plenum heater connections.
A schematic diagram (SCH) and electrical box layout
diagram (ELB) can be found inside the electrical box cover of
the unit as well as in the Model Spe ifi section of this manual.
The Electrical Tables in the Model Spe ifi section and the
ELB diagram contain information about the size of wire for the
connections, as well as the recommended breaker size for both
the heat pump and optional plenum heater. Connections are as
per TABLE 1 and TABLE 2.
NOTE: There are two separate power supplies, one for the
heat pump and a se ond one for the plenum heater if in-
stalled, ea h must have its supply wires and breaker.
NOTE: A properly qualified ele tri ian should be retained
to make the onne tions to the heat pump and asso iated
ontrols. The onne tions to the heat pump MUST CON-
FORM TO LOCAL CODES.
CONTROL TRANSFORMER
The low voltage controls are powered by a 75VA class II
transformer. The transformer has a resettable breaker on the
secondary side for circuit protection. Should the breaker trip,
locate and correct the problem and then reset the breaker by
pressing in on it.
IMPORTANT NOTE: For 208/230VAC-1-60 units, if onne t-
ing to 208VAC power supply move the red wire onne ted
to the 240 terminal of the transformer to the 208 terminal of
the transformer.
CIRCULATOR PUMP MODULE WIRING
(GROUND LOOP ONLY)
The heat pump has provisions for connecting the circulator
pump module so that the pumps will be turned on whenever the
compressor operates. Connect the circulator pump module to
the appropriate two terminals of the terminal strip marked
OUTDOOR CIRCULATORS in the heat pump, as per the volt-
age of the circulator pump module. Ensure that the total current
draw does not exceed the value indicated on the label in the
heat pump electrical box. Refer to the electrical box drawing
on the electrical box cover for more information.
Installation Information
TABLE 1 - Power Supply Connections
(Heat Pump
Line Des ription Voltages
L1 Line 1 All
L2 Line 2 All
L3 Line 3 208-3-60, 460-3-60, 380-3-50
N** Neutral 208/230-1-60, 208-3-60, 380-3-50
** Only required if connecting 5VAC circulators to the heat
pump for 208/230- -60 and 208-3-60 models, the heat pump
itself does not require a neutral. Required for 380-3-50 models.
TABLE 2 - Power Supply Connections
(Optional Plenum heater
Line Des ription Voltages
L1 Line 1 208/230-1-60, 208-3-60
L2 Line 2 208/230-1-60, 208-3-60
Contact factory for three phase plenum heater requirements.

02 JAN 2014 Page 001200MAN-05
THERMOSTAT REQUIREMENTS
The R-Series model requires a three-stage heating and
two stage cooling heat pump configurable thermostat for two-
stage models. The stages are S = Stage compressor, S2 =
Stage 2 compressor and S3 = electric auxiliary (heating only).
One can be purchased with the unit, or other heat pump thermo-
stats with the same number of stages can be used. The electri-
cal box diagram on the electrical box cover provides a descrip-
tion of the signal connections as in TABLE 3. Refer to DRAW-
ING 001827CDG for a diagram of the connections between the
thermostat and the heat pump.
NOTE: Some models are not available in two-stage at the pre-
sent time, models numbers with a T in the Compressor Stages
designator are two-stage, models with an S are single stage
(verify the model number against pages 2 and 3 of this manual,
or refer to the Ele tri al Tables near the end of this manual to
determine if the model is two stage or one stage). The Y2 sig-
nal is not used for these units, and they only require a 2 stage
heat stage cool thermostat. The stages are S = Compressor
and S2 = electric auxiliary (heating only). If the selected thermo-
stat has more stages than this, configure it for 2 and .
FAN MOTOR
The unit is equipped with a direct drive ECM fan motor for
maximum efficiency. The motor features a soft start which fur-
ther improves efficiency by eliminating inrush current and pro-
vides a smooth, quiet ramp up to speed . The motor will main-
tain the programmed air flow up to the maximum external static
value. Refer to the APPENDIX B: ECM Fan Airflow Tables.
The air flow can be set to four different levels by changing
the position on the Air Flow board located in the electrical box.
The four levels are indicated in TABLE 4. The actual air flow
values can be found in APPENDIX B.
Units are shipped with the MED position selected for nomi-
nal air flow. The air flow can be further reduced by 5% by
making a dry contact across AR
1
and AR
2
on the terminal strip.
This can be used for applications that have multiple zones, or
retrofits with undersized ductwork, to help reduce air flow noise
in the ductwork. It is recommended that airflow reduction only
be used with the High or Max air flow setting. Care should be
taken to ensure that the unit does not trip a safety control in
heating or cooling mode if the 5% reduction is used in conjunc-
tion with the MED or LOW air flow setting.
FAN RETURN ORIENTATION
The R-Series heat pump can be ordered as a left or right
hand return from the factory. This must be specified at time of
order as the physical construction of the two configurations is
different. Refer to the CASE DETAILS section of this manual or
the specification documents for physical dimensions of the units.
FAN OUTLET ORIENTATION
The R-Series heat pumps have a field configurable fan.
It’s default location from the factory is in the top of the unit, pro-
viding a “ninety” in the airflow. It can easily be placed in the side
of the unit for straight through airflow.
To switch the location of the fan outlet follow these simple steps:
. Turn the power of to the unit.
2. Remove the screw that holds the side access panel in
place and remove the access panel by pulling up on
the handle and then outward from the bottom.
3. Disconnect the two wire harnesses and ground wire
from the fan motor.
4. Repeat step 2 for the access panel with the fan
mounted in it. Set the assembly on the floor.
5. Disconnect the plenum heater extension from the fan
housing and from the access panel.
6. Mount the fan housing directly to the access panel.
7. Install the fan/panel in the new location and secure
with the screw.
8. Reconnect both harnesses and ground wire.
9. Install the remaining access panel and secure with the
remaining screw.
SAFETY CONTROLS
The heat pump has two built in safety controls which are
designed to protect the unit from situations which could damage
it should the operation of the refrigeration circuit fall outside the
allowable operating range.
A. Low Pressure Control
The low pressure control monitors the compressor suction
pressure and will shut the compressor down if the refrigerant
evaporating pressure becomes too low, risking the danger of
freezing conditions in the evaporator.
There are (3) main reasons why this control would activate
in response to the operating conditions of the unit while operat-
ing in heating mode:
. Low or no Outdoor loop flow.
2. Low Outdoor loop entering liquid temperature.
3. Dirty or fouled Outdoor loop heat exchanger.
TABLE 4 - Airflow Selections
Position Airflow
LOW -6%
MED Nominal
HIGH +6%
MAX +12%
TABLE 3 - Control Signal Description
Signal Des ription
C 24VAC Common (Ground)
G Fan low speed (for air ir ulation)
Y
1
Heat Pump Stage 1
R
H
24VAC Hot
L Fault (24VAC when fault ondition)
W
2
Heat Pump Stage 3 (auxiliary heat) /
Emergen y Heat
O Cooling Mode (reversing valve)
Y
2
Heat Pump Stage 2 (Not used for single
stage units)
AR
1
Airflow Redu tion*
AR
2
Airflow Redu tion*
C(I) Plenum Heater dry onta t
(Conne t to C or I in plenum heater)
1 Plenum Heater dry onta t.
(Conne t to 1 and 2 in plenum heater)
* Connect AR
1
to AR
2
with a dry contact to reduce the air-
flow by 5%. Refer to the Fan Motor sub-section for more
information.

Page 8 001200MAN-05 02 JAN 2014
B. High Pressure Control
The high pressure safety control monitors the compressor
discharge pressure and will shut the compressor down if the
condensing pressure becomes too high.
There are (3) main reasons why this control would activate
in response to the operating conditions of the unit while operat-
ing in heating mode:
. Low or no airflow.
2. High return air temperature.
3. Dirty air coil due to poor filter maintenance.
The unit contains a control board that monitors the safety
controls and operates the compressor accordingly. Refer to
APPENDIX A for control board specifications. The low pressure
control is connected to LP and LP2. The high pressure control
is connected to HP and HP2.
The control board also has provisions for a flow switch.
The flow switch is unused from the factory and a jumper wire is
placed across the FLOW SWITCH terminals. If a flow switch is
desired, the jumper can be removed and the two leads from the
flow switch can be connected to the FLOW SWITCH terminals
on the safety board. The flow switch is ignored for 5 seconds on
compressor startup to allow time for flow to be established. The
high and low pressure controls are monitored at all times. The
compressor will not be able to start if either of them has a fault.
The control board has an on-board LED and a FAULT
pin with a 24VAC output, which is routed to the L terminal of the
thermostat terminal strip. An external indicator or relay can be
connected across L and C on the terminal strip if external sig-
naling is desired. Should a fault condition occur, the LED will
flash the code of the fault condition while the safety control in
question is open. The codes are shown in TABLE 5. The con-
trol board will lock out the compressor for five minutes when a
fault occurs. The control board will then restart the compressor
if the fault has been cleared. Should a second fault condition
occur within a 60 minute period the control board will go into
permanent lockout mode and energize the FAULT pin. The
LED will flash the fault code until the control board is reset by
powering down the unit.
WARNING: If the ontrol board enters permanent
lo kout mode there is a serious problem with the
system and it must be re tified if the unit is to
maintain good servi e.
WARNING: REPEATED RESETS OF A LOW PRES-
SURE LOCKOUT COULD CAUSE THE HEAT EX-
CHANGER TO FREEZE AND RUPTURE, DESTROYING
THE HEAT PUMP AND VOIDING THE WARRANTY.
DOMESTIC HOT WATER
CONNECTIONS (HACW only)
The port onne tions for the DHW ir uit are 1/2” brass FPT
fittings. They are marked as DHW IN and DHW OUT
A typical piping diagram for a pre-heat tank configuration
can be found in DRAWING 000970PDG at the end of this sec-
tion. Be sure to note the position of the check valve and the
direction of water flow. Other configurations are possible, and
there may be multiple units tied together in larger buildings.
WARNING: USE ONLY COPPER LINES TO
CONNECT THE DESUPERHEATER. TEMPERA-
TURES COULD REACH 200F SHOULD THE DHW
CUTOUT SWITCH FAIL, POTENTIALLY RUPTURING
PEX PIPING.
Ensure the tank is filled with water and under pressure
before activating the heat pump. Slightly loosen the boiler drain
on the DHW Out pipe to allow air to escape from the system
before the unit is started. This step will make certain that the
domestic hot water circulator in the unit is flooded with water
when it is started.
CAUTION: the domestic hot water pump is water lu-
bricated; damage will occur to the pump if it is run
dry for e en a short period of time.
Connect the brown wire with the blue insulated terminal to
L of the compressor contactor. Ensure the power is off
when onne ting the wire.
The DHW loop may have to be purged of air several times
before good circulation is obtained. A temperature difference
between the DHW In and DHW Out can be felt by hand when
the circulator pump is operating properly.
For the pre-heat tank setup, the final tank should be set to
140°F(60°C), unless local code requires a higher setting. The
pre-heat tank does not require electric elements. This setup
takes full advantage of the desuperheater as it is the sole heat
provider to the pre-heat tank. The desuperheater remains active
during the compressor runtime until the pre-heat tank has been
completely heated by the desuperheater alone. This setup is
more energy efficient than a single tank setup.
CAUTION: If two (2) shut-off al es are located on
the domestic hot water ines as shown in the diagram,
a pressure relief al e must be installed to pre ent
possible damage to the domestic hot water circulator
pump should both al es be closed.
!
!
TABLE 5 - Control Board Fault Codes
Fault LED Flashes
High Pressure 1
Low Pressure 2
Flow 3
!
!
!

02 JAN 2014 Page 9 001200MAN-05

Page 10 001200MAN-05 02 JAN 2014

02 JAN 2014 Page 11 001200MAN-05
heat pump are greatly reduced.
Once the total heat loss has been calculated, the unit can
be sized using the performance tables (from the specifications
document) in conjunction with the minimum expected entering
liquid temperature of the ground loop (well water temperature for
ground water system). The heat pump output must be able to
match the total heat loss at the selected entering water tempera-
ture in order to provide a comfortable environment with minimal
auxiliary heat.
DUCT SYSTEMS - GENERAL
Ductwork layout for a heat pump will differ from traditional hot
air furnace design in the number of leads and size of main
trunks required. Air temperature leaving the heat pump is
normally 95º -105ºF (35-40ºC), much cooler than that of a
conventional warm air furnace. To compensate for this, larger
volumes of lower temperature air must be moved and
consequently duct sizing must be able to accommodate the
greater air flow without creating a high static pressure or high
velocity at the floor diffusers.
A duct system capable of supplying the required air flow is of
utmost importance. Maritime Geothermal Ltd. recommends that
the static pressure be kept below 0.2 inches of water total. In
some instances the number of floor diffusers will actually double
when compared to the number that would be used for a hot air
oil-fired furnace. Refer to TABLE 10 at the end of this section.
. Generally allow 100 fm for each floor grill.
2. All leads to the grills should be 6'' in diameter (28sq.in. each).
3. The main hot air trunks should be at least 75% of the square
surface area of leads being fed at any given point.
4. Return air grills should have a minimum of the same total
square surface area as the total of the supply grills.
5. The square surface area of the return trunks should equal
the square surface area of the grills being handled at any
given point along the trunk.
It is VERY IMPORTANT that all turns in both the supply
trunks and the return trunks be made with TURNING RADII. Air
act like a fluid and, just like water, pressure drop is increased
when air is forced to change direction rapidly around a sharp or
irregular corner.
It is recommended that flexible collars be used to connect the
main trunks to the heat pump. This helps prevent any vibrations
from travelling down the ductwork. If a plenum heater is in-
stalled, the collar should be at least 2” away from the heater
elements.
The first 5- 0 feet of the main supply trunks should be insu-
lated with acoustical duct insulation to further inhibit any noise
from the unit from travelling down the ductwork. If a plenum
heater is installed, insulation should not be placed within 2” of
the heater elements.
DRAWING 001201CDG shows a typical installation.
HEAT PUMP SIZING
TABLE 6 depicts a rough guideline as to the size of home
each heat pump size can handle for ground loop installations.
TABLE 7 depicts a rough guideline as to the size of home
each heat pump size can handle for ground water installations.
THE TABLES ABOVE ARE FOR INFORMATION ONLY,
THEY SHOULD NOT BE USED TO SELECT A UNIT SIZE.
They simply show on average what size unit is required for a
typical two-level home (main level and below grade basement)
with R-20 walls, R-40 ceiling and average size and number of
windows. The Heated Area is the area of the main level, The
tables account for a basement the same size as the heated
area.
MARITME GEOTHERMAL LTD. HIGHLY RECOMMENDS
THAT A PROPER HEAT LOSS/GAIN ANALYSIS BE PER-
FORMEDE BY A PROFESSIONAL INSTALLER WITH CSA
APPROVED SOFTWARE BEFORE SELECTING THE SIZE OF
UNIT REQUIRED FOR THE APPLICATION. For heating
dominant areas, we re ommend sizing the unit to 100% of
the heating design load for maximum long term effi ien y
with minimal supplementary heat. The unit should be in-
stalled as per CSA 448.2-02. For ground loop appli ations,
the ground ex hanger should be designed using suitable
software with a multi-year analysis.
There are many factors to consider when sizing the heat
pump. Some of these factors include the number of levels, the
size of the windows, the orientation of the home, attached ga-
rage, bonus rooms, walk-in basement, coldest outdoor tempera-
ture, etc. The heat loss program will take all of these factors
into consideration in its calculations. An undersized installation
will not be as efficient as it will require excessive relatively ex-
pensive supplemental heat to maintain a comfortable tempera-
ture in the home, and the cost savings of having a geothermal
TABLE 6 - Heat Pump Size vs. Heated Area
for a Ground Loop System
Model Sq.ft. Sq.m.
25 800 75
45 1,400 130
55 2,000 185
65 2,600 240
75 3,100 290
80 3,500 325
TABLE 7 - Heat Pump Size vs. Heated Area
for a Ground Water System
Model Sq.ft. Sq.m.
25 1,000 95
45 1,800 165
55 2,500 230
65 3,200 295
75 3,800 355
80 4,200 390
Sizing and Ductwork

Page 12 001200MAN-05 02 JAN 2014
DUCT SYSTEMS - GRILL LAYOUT
Most forced air heating systems in homes have the floor grills
placed around the perimeter of the room to be heated. Supply
grills should be placed under a window when possible to help
prevent condensation on the window. As mentioned in the pre-
vious sub-section, supply grill leads should be 6'' in diameter (28
sq.in. each) to allow 100 fm of air flow.
In a typical new construction, there should be one supply
grill for every 00sq.ft. of area in the room. When rooms require
more than one grill, they should be placed in a manner that pro-
motes even heat distribution, such as one at each end of the
room. It is always a good idea to place a damper in each grill
supply or place adjustable grills so that any imbalances in the
heat distribution can be corrected.
The total number of supply grills available is based on the
heat pump nominal airflow. TABLE 8 shows the number of
grills available per heat pump size.
Return grills should be mounted on the floor. At minimum
they should be the same size as the supply grill, it is highly
re ommended that they be 25% to 50% larger than the total
supply. They should be placed opposite the supply grills when
possible to ensure distribution across the room. For rooms re-
quiring more than one supply grill, it may be possible to use one
larger return grill if it can be centrally positioned opposite of the
supply grills, however it is preferred to have one return for each
supply to maximize heat distribution across the room.
THERMOSTAT LOCATION
Most homes are a single zone with one thermostat. The ther-
mostat should be centrally located within the home, typically on
the main floor. It should be placed away from any supply grills,
and should not be positioned directly above a return grill. Most
installations have the thermostat located in a hallway, or in the
inner wall of the living room. It should be noted that most
homes do not have any supply ducts in the hallway. This can
lead to a temperature lag at the thermostat if there is very little
air movement in the hallway, causing the home to be warmer
than indicated by the thermostat.
PLENUM HEATER (OPTIONAL)
For installations that do not already have a backup heat
source such as electric baseboard, wood stove, propane etc, it
is recommended that a plenum heater be installed. This pro-
vides two functions.
The first function of the plenum heater is to act as an auxiliary
heat source. As such it will provide additional heat on extremely
cold days if the heat pump is unable to bring the home tempera-
ture up quickly enough, eliminating any discomfort to the home-
owner.
TABLE 8 - Heat Pump Size vs. Hot Air Grills
Model Size (tons) # of Grills (@100 fm)
25 2 8
45 3 12
55 4 15
65 5 19
80 6 24
75 6 21
The second function of the plenum heater is to provide emer-
gency heat should a problem occur that causes the heat pump
to be locked out. This can be engaged by setting the thermostat
to emergency heat, allowing the plenum heater to function while
preventing the heat pump from operating. Should the heat
pump fail while the home is vacant, the auxiliary function of the
thermostat will maintain the temperature setting of the thermo-
stat.
INSTALLATION—Fan outlet at top of unit: The heat pump
comes equipped with an internal mounting location for the ple-
num heater. Remove the screws from the cover plate, remove
the cover plate and place the plenum heater in the hole. Secure
it in place with the cover plate screws. Use the indicated knock-
outs on the heat pump case for electrical connections.
When installation is omplete, he k the appropriate box
of the label on the unit door to indi ate whi h size heater
was installed.
INSTALLATION—Fan outlet at side of unit: The plenum
heater should be installed in the supply duct in a manner that
allows all of the airflow to pass through it to prevent any hot
spots in the heater elements. Ensure that the plenum heater is
mounted in an approved position as per its instructions.
Only two control wires are needed to connect the plenum
heater to the heat pump terminal strip. Refer to the label on the
plenum heater or the electrical box diagram on the inside of the
electrical box cover of the ompressor unit for details on the
connections.
The plenum heater requires its own separate power sup-
ply. TABLE 9 shows the recommended size plenum heater, as
well as the wire size and breaker size needed to provide power
to the plenum heater. Refer to the Electrical Tables for electri-
cal connection information.
CONDENSATE DRAIN
The unit comes equipped with a 3/4” PVC socket fitting
(female) labeled “Condensate Drain”. This drain allows the con-
densate which forms during the air-conditioning cycle to be re-
moved from the unit. The drain should be connected as per
local codes. During high humidity weather, there could be as
much as 25 gallons of water formed per day.
Care should be taken in the spring to ensure that this pipe is
not plugged with dust that has collected during the winter caus-
ing the condensate to overflow into the bottom of the heat pump
and onto the floor. The ondensate drain is internally
trapped; however, proper venting is required external to
the heat pump. Refer to lo al odes to ensure the installa-
tion is done properly.
DRAWING 001201CDG shows a typical installation.
TABLE 9 - Plenum Heater Sizing
Heat
Pump Plenum Heater Sizes (kW)
Model
Size Re ommended Available
25 7 5
55 10 7 15
65 15 10 20
75 - 80 20 15
45 10 7

02 JAN 2014 Page 13 001200MAN-05

Page 14 001200MAN-05 02 JAN 2014
Airflow
( FM)
Diameter
(in) Rectangular Equivalents (in)
Return Air
Diameter
(in)
Airflow
(L/s)
37 5 2.25 x 10 3 x 8 3.5 x 6 4 x 5.5 5 x 5 ` 5 17
63 5 2.25 x 10 3 x 8 3.5 x 6 4 x 5.5 5 x 5 6 30
100 6 3.25 x 10 4 x 8 5 x 6 5.5 x 5.5 6 x 6 7 47
152 7 3.25 x 14 4 x 11 5 x 8.5 6 x 7 6.5 x 6.5 8 72
212 8 4 x 15 5 x 12 6 x 10 7 x 8 8 x 8 9 100
226 8 4 x 15 5 x 12 6 x 10 7 x 8 8 x 8 10 107
277 9 5 x 15 6 x 12 7 x 10 8 x 9 8.5 x 8.5 10 131
304 9 5 x 15 6 x 12 7 x 10 8 x 9 8.5 x 8.5 12 143
393 10 6 x 15 7 x 13 8 x 11 9 x 10 9.5 x 9.5 12 185
411 12 7 x 18 8 x 16 9 x 14 10 x 12 11 x 11 12 194
655 12 7 x 18 8 x 16 9 x 14 10 x 12 11 x 11 14 309
680 14 8 x 22 9 x 19 10 x 17 11 x 15 12 x 14 13 x 13 14 321
995 14 8 x 22 9 x 19 10 x 17 11 x 15 12 x 14 13 x 13 16 470
1325 16 8 x 30 10 x 22 12 x 18 14 x 16 15 x 15 18 625
1450 16 8 x 30 10 x 22 12 x 18 14 x 16 15 x 15 20 684
1750 18 8 x 40 10 x 30 12 x 24 14 x 20 16 x 17 16.5 x 16.5 20 826
2000 18 8 x 40 10 x 30 12 x 24 14 x 20 16 x 17 16.5 x 16.5 22 944
2250 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18.5 x 18.5 22 1062
2600 20 10 x 38 12 x 30 14 x 26 16 x 22 18 x 19 18.5 x 18.5 24 1227
2900 22 12 x 36 14 x 30 16 x 26 18 x 23 20 x 20 24 1369
3400 22 12 x 36 14 x 30 16 x 26 18 x 23 20 x 20 26 1605
3600 24 14 x 38 16 x 32 18 x 28 20 x 25 22 x 22 26 1699
4300 24 14 x 38 16 x 32 18 x 28 20 x 25 22 x 22 28 2029
5250 26 16 x 38 18 x 32 20 x 30 22 x 24 24 x 24 30 2478
6125 28 18 x 38 20 x 34 22 x 30 24 x 28 26 x 26 32 2891
6500 28 18 x 38 20 x 34 22 x 30 24 x 28 26 x 26 34 3068
7250 30 20 x 40 22 x 38 24 x 32 26 x 30 28 x 28 34 3422
7800 30 20 x 40 22 x 38 24 x 32 26 x 30 28 x 28 36 3681
8500 32 22 x 40 24 x 38 26 x 34 28 x 32 30 x 30 36 4012
9200 32 22 x 40 24 x 38 26 x 34 28 x 32 30 x 30 38 4342
9800 34 24 x 42 25 x 40 26 x 38 28 x 34 30 x 32 31 x 31 38 4625
10900 34 24 x 42 25 x 40 26 x 38 28 x 34 30 x 32 31 x 31 40 5144
28 x 40 30 x 36 32 x 34 33 x 33
30 x 42 32 x 38 34 x 36 35 x 35
30 x 45 34 x 40 36 x 38 37 x 37
TABLE 10 - Duct Si ing Guide (external static of 0.20”H2O)
Minimum
Duct Area
(sq.in)
20
20
28
38
50
50
64
64
79
113
113
154
154
201
201
254
254
314
314
380
380
452
452
531
616
616
707
707
804
804
908
908

02 JAN 2014 Page 15 001200MAN-05
Water flow to the heat pump can be controlled very accurately
by the installation of a reverse action refrigeration pressure
valve in the discharge line of the unit.
Another more common method of regulating the flow is by the
use of a DOLE Valve. This valve will automatically control the
amount of water flowing through it by varying the diameter of a
flexible rubber orifice through which the water passes. This
minimizes the water usage of the unit and also prevents exces-
sively low discharge pressure when in cooling mode. Dole
valves can be noisy, it is recommended that they be installed
outside if possible.
Optionally a water flow meter can be installed in the dis-
charge line so that the exact amount of water flowing can be
determined at a glance. It should be placed between the Out-
door OUT (Supply OUT) pipe of the heat pump and the water
valve.
With Proper flow, there should be 5-7°F (3-4°C) delta T be-
tween the IN and OUT water temperatures of the heat pump
when operating in the heating mode.
All water line valves on both the supply and discharge lines
should be either BALL or GATE valves. GLOBE valves have a
higher pressure drop, meaning more pumping power to maintain
the required flow to the heat pump.
PIPE INSULATION
All ground water piping to and from the Outdoor Loop ports
on the heat pump should be insulated with 3/8” closed cell pipe
insulation, to prevent condensation and dripping onto floors or
walls.
WATER DISCHARGE METHODS
Water disposal methods vary from area to area. However,
some consideration should be made to prevent the cooled
discharge water from immediately coming in contact with the
supply source. Attempting to return the water to the source well
will eventually cool the water so much that the heat pump will
shut off on its low pressure safety control.
Acceptable methods for disposing of the waste water are
listed below. The waste water is clean, the heat pump has no
effect other than reducing the temperature of the water. Refer
to drawing 000907INF for typical disposal method diagrams.
• Second well (return well)
• Percolation (Drain, ditch, leaching field)
• Pond, river or stream.
ENSURE SELECTED METHOD CONFORMS TO LOCAL CODES.
GENERAL REQUIREMENTS
. The temperature of the well water should be a minimum
of 39°F (4°C), and should normally be 45+°F (7°C)
2. The well system must be able to supply the required
water flow as listed under the Total Flow column in
TABLE 11.
PLUMBING THE HEAT PUMP
The port onne tions for the Outdoor Loop are 1” brass
FPT fittings They are marked as OUTDOOR IN and OUT.
Plumbing lines, both IN (supply) and OUT (discharge), must
be of adequate size to handle the water flow necessary for the
heat pump. A ” copper or plastic line should be run to the Out-
door IN (Supply IN) pipe of the heat pump. Similarly, a ”' line
should be run from the Outdoor OUT (Supply Out) pipe to the
method of disposal. P/T plugs should be installed at each port.
See Diagram A in the Ground Loop section for a description of
P/T plugs. The water valve should be installed in the OUT
(discharge) line. Refer to drawing 000907CDG at the end of
this se tion for the recommended setup. Placing the water
valve in the discharge line ensures that the heat exchanger in-
side the heat pump remains full of water when the unit is not
running. Unions or some other form of disconnect should be
used so that the coaxial heat exchanger may be accessed
should it required cleaning.
The heat pump has an electrical connector for the water valve
just inside the case. After the water valve is installed, run the
valve harness into the case through the hole provided. Remove
the jumper plug from the Valve Connector and connect the har-
ness in its place.
Ideally there will be water flow available in excess of the
requirement of the heat pump. In such a situation the proper
pump can be selected to maintain a pressure of 30 to 40 psig.
on the lines when the heat pump is operating. However in some
cases a well can supply a heat pump only if the minimum
requirement for water is used.
TABLE 11 - Required Flow and Air Tank Sizing
Heat
Pump
Model
Size
Heat
Pump
Flow*
USGPM
(L/s)
Home
Flow
USGPM
(L/s)
Total
Flow
USGPM
(L/s)
Minimum Air
Bladder
Tank**
USgal
(L)
25 7.0 (0.44) 4 (0.25) 11 (0.69) 22 (83)
45 10.0 (0.63) 4 (0.25) 14(0.88) 28 (106)
55 12.0 (0.76) 4 (0.25) 16(1.01) 32 (121)
65 14.0 (0.88) 4 (0.25) 18(1.14) 36 (136)
75 16.0 (1.01) 4 (0.25) 20 (1.26) 40 (151)
80 17.0 (1.07) 4 (0.25) 21(1.32) 42 (159)
* These are minimum water requirements based on an
entering water temperature of 46° F.
**Based on two-minute well pump run time. Use next size
larger tank if there is not a match for the value indicated.
A larger tank may be used if a longer run time is desired.
Ground Water System Information

Page 16 001200MAN-05 02 JAN 2014
When snow comes it will usually cover the entire process
much like a small spring. It is recommended that the pipe be
below the frost line when possible for maximum freeze protec-
tion.
When discharging into a river or stream, or above the surface
of a pond, the same guidelines should be followed as described
in the paragraph above for the percolation method.
When discharging the waste water below the surface of a
pond, the discharge pipe should be placed below the frost line
to prevent the pipe from freezing. As opposed to the percola-
tion method, water will remain in the end of the pipe. It is rec-
ommended that the surface of the pond be lower than the instal-
lation location of the heat pump where practical. This reduces
the back pressure generated by the weight of the water in the
pond.
A return well should be a minimum of 80 ft. from the supply
well for residential applications. The water returned to the well
will not necessarily be pumped into the same aquifer, depend-
ing on underground conditions. The return well must be able to
supply at least the same quantity of water as the amount you
wish to recharge into it. If the static level (level when not being
pumped) of a well is high ( 0 to 20 ft. from the surface) it may
be necessary to place a well cap on the well to keep the return
water from flowing out the top of the well. This cap is commonly
required since a certain amount of pressure is needed to force
the return water back down the well if the static level is high.
Water discharged by percolation will generally soak into the
ground within a distance of 50 to 00 ft. If suitable care is taken
to ensure that the drain pipe runs downhill and the end of the
pipe is protected by a bale of hay or spruce bows etc. the end of
the pipe will not freeze as the pipe will empty out when the heat
pump shuts off and the water valve closes.

02 JAN 2014 Page 1 001200MAN-05

Page 18 001200MAN-05 02 JAN 2014
Once the ground loop has been pressure tested and the
header pipes have been connected to the circulator pump
module, the heat pump can be connected to the circulator pump
module.
The port onne tions for the Outdoor Loop are 1” brass
FPT fittings. They are marked as OUTDOOR IN and OUT.
CIRCULATOR PUMP MODULE
Maritime Geothermal Ltd. has compact pump modules with
built in three way valves to facilitate filling and purging the
ground loop. Refer to drawing 000906CDG at the end of this
se tion. Alternatively, Grundfoss® Model UPS 26-99 or Taco®
Model 00 pumps or other brands with similar pumping
capability may be used. The single pump module will typically
handle systems up to 3 tons (model sizes 25, 35, and 45); the
two pump module will typically handle 4 to 6 ton systems (model
sizes 55, 65, 75, 80). This is based on a typical parallel system
with one circuit per ton.
Maritime Geothermal recommends calculating the total
pressure drop of the ground loop (including headers, indoor
piping and heat pump exchanger drop) based on the antifreeze
type and concentration at the desired minimum loop
temperature. A pump module that can deliver the flow required
for the unit at the calculated total pressure drop should be
selected. Refer to the Model Spe ifi Information se tion for
unit flow requirements.
Loop pressure drops can be calculated using software such
as those mentioned in the Horizontal Ground loops section, or
can be calculated in a spreadsheet using the pipe
manufacturer’s pressure drop tables for pipe diameter and
fittings.
The circulator pump module must be connected to the heat
pump Outdoor Loop ports with a lineset suitable for the flow
required with minimum pressure drop. ” rubber or plastic lines
should be used. The installation of P/T plugs (pressure /
temperature, pronounced “Pete’s plugs” ) is recommended on
both the entering and leaving lines at the heat pump (see
Diagram A).
The P/T plug will allow the installer or homeowner to check
water flow through the loop by measuring the pressure
difference through the heat exchanger and comparing it to that
listed in the Model Spe ifi Information se tion, or the
specifications document . Optional fittings with P/T ports are
available for the circulator pump modules sold by Maritime
Geothermal Ltd..
FLUSHING PURGING THE GROUND
LOOP
Once the groundloop has been installed and all connections
are completed between the heat pump, circulator pump module
and ground loop, the entire ground loop system should be
pressure tested with air to 100 PSIG to make sure there are
no leaks on any of the inside fittings. Soap all joints and observe
that the pressure remains constant for hour.
When satisfied that all connections are leak free, release the
air pressure and connect a purge cart (see Diagram B ) to the
flushing access ports at the pump module (refer to drawing
000906CDG). A temporary flushing system can alternately be
constructed using a 45 gal. barrel and a pump with sufficient
volume and head capability to circulate fluid at a velo ity of at
least 2 ft./min. through all parts of the loop.
Adjust the circulator pump module valves to connect the
purge cart to the ground loop. Begin pumping water through the
ground loop, ensuring that the intake of the pump stays
submerged at all times by continuously adding water. Water
flowing back from the return line should be directed below the
water level in the barrel or flush tank to prevent air being mixed
with the outgoing water.
DIAGRAM A - Typical P/T (Pete’s Plug
& Thermometer Stems
DIAGRAM B - Typical Purge Cart
Ground Loop System Information

02 JAN 2014 Page 19 001200MAN-05
Once the lines have been filled and no more air bubbles are
appearing in the line, adjust the circulator pump module valves
to circulate water through the heat pump using the same
technique as described above. When all air is removed reverse
the flow of water through the lines by interchanging the flush
cart lines and purge again. You will be able to visibly tell when
all air is removed.
ADDING ANTIFREEZE SOLUTION
In most mid and northern areas of the US and in all of
Canada it is necessary to condition the loop fluid by the addition
of some type of antifreeze solution so that it will not freeze
during operation in the winter months. This antifreeze is required
because the loop fluid will normally reach a low entering
temperature of 28°F to 32°F (-2°C to 0°C) and refrigerant
temperatures inside the heat pump’s heat exchanger may be as
low as 20°F (11°C) cooler. See TABLE 12 for details of freeze
protection provided by different concentrations.
WARNING: Add enough antifreeze to allow for a
temperature 20°F (11°C) lower than the expe ted
lowest loop fluid temperature entering the heat pump.
Insuffi ient antifreeze on entration ould ause the
heat ex hanger to freeze and rupture, voiding the
warranty.
Although many different antifreeze solutions have been
employed in geothermal systems, the alcohols such as
methanol or ethanol have the most desirable characteristics for
groundloop applications. The overall heat transfer
characteristics of these fluids remain high although care must be
taken when handling pure alcohols since they are extremely
flammable. Once mixed in a typical 25% by volume ratio with
water the solution is not flammable. In situations where alcohols
are not allowed as a loop fluid due to local regulations then
propylene glycol is a non-toxic alternative which can be
substituted . Propylene glycol should only be used in cases
where alcohols are not permitted since the heat transfer
characteristics are less desirable and it becomes more viscous
at low temperatures, increasing pumping power.
The volume of fluid that your loop system holds can be
closely estimated by totaling the number of ft. of each size pipe
in the system and referencing TABLE 13 the for approximate
volume per 00 ft.
When the volume of the loop has been calculated and the
appropriate amount of antifreeze is ready for addition by
referencing TABLE 12 , drain the equivalent amount of water
from the flush cart or mixing barrel and replace it with the
antifreeze.
When using al ohols, be sure to inje t below the water
line to redu e initial volatility of the pure antifreeze. If the
loop is large it may be necessary to refill the tank with antifreeze
several times to get all the antifreeze into the loop. Pump the
loop for 5 to 0 minutes longer to ensure the remaining fluid has
been well mixed.
INITIAL PRESSURIZATION
At this point open all valves in the flow circuit and slowly close
off the supply and return flush cart valves in a manner that
leaves about 20-30 psig. on the system. If an air bladder
expansion tank is used it should be charged to the above
pressure before actual water pressure is put on the system .
Systems without an expansion tank will experience greater
fluctuations in pressure between the heating and cooling
seasons, causing pressure gauges to have different values as
the loop temperature changes. This fluctuation is normal since
expansion and contraction of the loop fluid must be handled by
the elasticity of the plastic loop.
• Pressurize the loop to a static pressure of 45 psig. when
installing a system in the fall going into the heating season.
• Pressurize the loop to a static pressure of 25 psig. when
installing a system in the spring or summer going into the
cooling season.
After operating the heat pump for a period of time, any
residual air in the system should be bled off and the static
pressure should be verified and adjusted if necessary. Add
additional water / antifreeze mix with the purge cart to bring the
pressure back to the original setting if required.
PIPE INSULATION
All ground loop piping inside the structure (between the
structure entry point and the heat pump) should be insulated
with 3/8” thick closed cell pipe insulation to prevent
condensation and dripping onto floors or walls.
TABLE 13 - Volume of fluid per 100 ft. of pipe
Volume /100ft.
Type of Pipe Diameter Igal USgal L
Copper 1” 3.4 4.1 15.5
1-1/4” 5.3 6.4 24.2
1-1/2” 7.7 9.2 34.8
Rubber Hose 1” 3.2 3.9 14.8
Polyethylene 3/4” IPS SDR11 2.3 2.8 10.6
1” IPS SDR11 3.7 4.5 17.0
1-1/4” IPS SDR11 6.7 8.0 30.3
1-1/2” IPS SDR11 9.1 10.9 41.3
2” IPS SDR11 15.0 18.0 68.1
Other Item Volumes
Heat Ex hanger Average 1.2 1.5 5.7
Purge Cart Tank See art manual TBD
TABLE 12 - Antifreeze Percentages
BY VOLUME
Prote tion to: 10°F 15°F 20°F 25°F
Methanol 25% 2 % 6% 0%
Propylene Glycol 38% 30% 22% 5%
Prote tion to: 10°F 15°F 20°F 25°F
Methanol 6.8% 3.6% 0% 6.3%
Propylene Glycol 30% 23.5% 8.3% 2.9%
BY WEIGHT
!

Page 20 001200MAN-05 02 JAN 2014